Commit Graph

1164 Commits

Author SHA1 Message Date
Tom Boucher
fac0e9de86 docs(#4906): ADR-4910 amendment — a write refuses on a document with any unreadable node (#4913)
* docs(#4906): ADR-4910 amendment — a write refuses on a document with any unreadable node

§5 scoped the parse error to the node. That is correct for reads and was never
examined for writes.

§5 was reasoned entirely from #4899, a read bug. Node-scoping is right there: a
ragged Progress table must not make phase list and init.progress fail, because
those are the commands a user needs to see what to repair. But the rule was
stated unqualified, and it licensed something never considered — phase.complete
mutating a ROADMAP.md whose Progress table it could not read. A partial-view
write persists a wrong answer rather than merely returning one.

Amendment: reads stay node-scoped; a write refuses when ANY node in the document
carries a parse error, whether or not the mutation targets it. A reader answers a
bounded question from a bounded region; a writer asserts that the document it
emits is the document it read, and cannot make that assertion about a region it
could not parse. §3's byte-stability does not rescue it — splicing untouched
bytes faithfully is not the same as knowing they were consistent with the change.

Rejected: refusing only when the mutation's own target node is unreadable. It is
the appealing middle and it does not hold — phase.complete writes **Plans:**
while deriving that value from plan/summary counts in a different region. The
regions a write depends on are not statically the regions it touches.

Downstream: Phase 1 ships both scopes plus a hasUnreadableNodes predicate the
serializer consults; Phase 2 gains a new acceptance criterion (a refused write
leaves the file byte-identical on disk); Phase 4's census gains a second axis and
must publish both counts.

Appended as a dated section per docs/contributor-standards.md pattern 1 — the
original Decision body is unchanged.

Refs #4906
Refs #4910

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4906): correct the amendment's motivating example and state the limit it exposes

An isolated review pass falsified the first draft's central example. The
correction is recorded in the amendment rather than quietly patched, because it
bounds what the rule can promise.

- The draft claimed phase.complete derives the value it writes into **Plans:**
  from a different REGION of the same document. It does not. planCount and
  summaryCount come from findPhaseInternal at src/phase.cts:3429-3434 — a
  filesystem scan of the phase directory. No PlanningDoc node holds them.
  That widens the dependency rather than narrowing it, and it makes an explicit
  limit necessary: a document-scoped write refusal protects the document's own
  consistency and says nothing about the correctness of a value sourced from
  outside the document. Recorded as a stated limit and named out of scope for
  this epic.

- The rejected alternative (refuse only when the mutation's own target node is
  unreadable) is re-grounded on two arguments that survive: it would almost
  never fire, since a verb locates the node in order to write it; and it guards
  something smaller than the operation performs, because serialization re-emits
  the whole file.

- §5's body names `phase list` as a consumer an unreadable Progress table would
  block. It is not one — cmdPhasesList (src/phase.cts:207) enumerates phases/
  and never opens ROADMAP.md. init.progress and roadmap.analyze are the real
  instances; the argument never needed three. §5's body left unmodified per the
  append-only rule, correction carried in the amendment, fold in at ratification.

- Clarified that the new WriteOutcome refusal sits on a different axis from §5's
  reserved document-level Result<PlanningDoc> parse failure, so no reader can
  conclude that reservation was reopened. A document can be valid to open and
  still refuse to be written.

Refs #4906
Refs #4910

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-21 00:17:10 -04:00
Tom Boucher
01dbda9c49 docs(#4910): ADR-4910 — the PlanningDoc parse → mutate → serialize seam — Phase 0 of #4906 (#4911)
* docs(#4910): ADR-4910 — the PlanningDoc parse → mutate → serialize seam — Phase 0 of #4906

Design lock for epic #4906. Docs-only; no production code lands here.

Eight decisions: one PlanningDoc seam composing markdown-sectionizer,
markdown-table and frontmatter as layers; node-replacement writes so a field
write cannot reach past its own value; byte-stable serialization for untouched
regions; escape-or-refuse shared between each artifact's writer and its reader,
with an explicit accepted-superset-of-emittable split; a typed parse error
scoped to the node rather than the document; a type-narrowed write boundary
paired with a lint; a positive control per accepted grammar; and one
implementation per shared pattern.

Two corrections to the epic's stated mechanism, both load-bearing for later
phases:

- The epic asks for a ratchet where a reintroduced content.replace() "does not
  typecheck". It cannot: fs.writeFileSync(p, s.replace(...)) typechecks fine
  because fs has never heard of PlanningDoc. Enforcement is type-narrowing plus
  a lint that owns the bypass, and the ADR says so rather than shipping a
  guarantee one require() defeats.
- The epic names scripts/lint-planning-artifact-writer-drift.cjs as the drain
  point. That script is a registry-completeness guard that states "No ratchet /
  no baseline" by design and never inspects how a write is performed. It is
  correct on its own axis and left untouched; the right home is
  local/no-adhoc-markdown-parsing.

ADR-2143's Phase 4 already shipped the table-regex and replace-mutation
detectors, so the ADR scopes the remaining gap precisely rather than asking for
that work twice: adhocReplaceMutation keys on a table-or-section regex, and
#4852's pattern is a bold-label field regex — which is why the defect sits in
src/phase.cts, a file the rule does lint, with lint:ci green.

Per docs/adr/README.md lifecycle rule 3, ADR-1372 and ADR-2143 are NOT given
the reciprocal `Subsumed by` back-link here: a Proposed ADR's Subsumes claim is
prospective, so its targets are not marked until ratification. Both back-links
land in the Phase 6 ratification PR. ADR index regenerated.

Refs #4906
Closes #4910

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4910): apply review findings — link every ADR cross-reference and state the node-scoping interpretation

Three review passes ran against the ADR: an isolated adversarial fact-check of
every citation, and both axes of /code-review as separate sub-agents.

Standards axis (hard violation of docs/adr/README.md lifecycle rule 2): 14 bare
ADR-1372 / ADR-2143 / ADR-1411 references in body prose. gen-adr-index.cjs does
not catch this — its bare-id check runs only over relation-field values, never
body prose — so a green lint:generated-sync did not clear it. Every bare
cross-reference is now a file link; only the self-reference ADR-4910 remains
bare, which is not a cross-reference.

Spec axis: §5 scopes the parse error to the node, while #4906's criterion reads
"an unparseable shape surfaces could-not-parse with the offending span" with no
document-or-node qualifier. Both readings are faithful to that sentence and they
produce materially different Phase 1 and Phase 4 work. §5 now records the
distributive reading explicitly, names the document-scoped alternative, states
what it would cost (one bad table failing phase list and init.progress alongside
roadmap.analyze), and names what changes if the epic meant the other one. A
silent narrowing became a stated one.

Refs #4906
Closes #4910

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4910): make each phase's acceptance a structural property, not a list of fixed issues

Phases 2-5 read as "fixes #4852, #4862, #4499" — a point-fix list with a seam
attached. That is the failure the epic names in its own words: "an
implementation that does that has not closed this epic, even with every symptom
gone and CI green."

New section "What makes a phase done" locks three criteria every phase carries:

- Census -> zero. A phase enumerates every instance of its anti-pattern in the
  tree, publishes the count in its PR, and closes when it is zero. Not "the
  reported ones".
- Deletion, not coexistence. Bespoke implementations are removed, not kept in
  sync beside the seam — including src/roadmap.cts:1196's three-arm
  planCountPattern, which is correct today and still goes, because a correct
  copy of a rule the seam owns is the two-copies-that-agree case.
- Unrepresentable by construction. Each phase ships one property that makes its
  class impossible rather than currently absent: a property over generated
  documents, a type that does not admit the wrong shape, or a drift guard.

The absorbed issues are demoted to fail-first regression evidence. A phase may
not close on those tests alone.

Each phase restated accordingly, with its own census / deletion /
unrepresentable / evidence breakdown.

The six community point-fix PRs and their issues were closed unmerged
(#4762/#4736, #4897/#4837, #4848/#4661, #4610/#4605, #4609/#4606,
#4530/#4499). The ADR now records that as executed rather than pending, which
is what lets census-to-zero be an acceptance criterion at all — a landed point
fix would make the tree look healthier than it is. Phase PRs reference those
six with Refs, since CONTRIBUTING forbids a closing keyword against an
already-closed issue.

Refs #4906
Closes #4910

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-20 23:47:33 -04:00
Tom Boucher
eea9247c93 enhance(#4095): checkpoint:decision auto-selection is opt-in via auto_select (#4912)
* enhance(#4095): checkpoint:decision auto-selection is opt-in via auto_select

Auto-mode used to auto-select a checkpoint:decision's first <option>
unconditionally, making a decision checkpoint's safety depend on option
presentation order rather than an authored choice. Add an optional
auto_select="<option-id>" attribute on the <task> tag: absent, auto-mode
now escalates to a human exactly like gate="blocking-human" does; present,
it names the option auto-mode selects; naming an id with no matching
<option id> is a hard structural-validation error at plan-parse time
rather than a silent fallback to the first option. gate="blocking-human"
continues to win over everything, unchanged.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4095): anchor auto_select/id attribute regexes past hyphenated decoys

An isolated adversarial review of the auto_select work found that both new
attribute regexes used \b as their left anchor, which is a word boundary,
not a "start of attribute name" boundary. A decoy attribute ending in the
same word (e.g. data-id="...") sitting before the real id="..." on the
same <option> tag matched first, silently corrupting the extracted option
id. Anchor on (?:^|\s) instead so only the real attribute name can match.
Adds a regression test reproducing the exact decoy-attribute shape, plus a
Unicode option-id test from the same review pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#4095): register auto-select-attribute.test.cjs in the docs-guard lane

lint-docs-guard-registration failed: the new test reads docs/reference/
plan-md.md but was not registered, so a future edit to that doc could
silently desync from the test without the guard catching it on the PR
that changed the doc. Registered alongside its direct precedents
(precondition-element.test.cjs, reversibility-tagging.test.cjs), which
read the same file for the same reason.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4095): fit the decision bullet under execute-phase.md's frozen byte ceiling

The remote gsd-test run caught what local checks missed: execute-phase.md
carries a frozen ADR-857 Phase-6 byte ceiling (93600) with only 36 bytes
of headroom before this change, and the original checkpoint:decision
wording pushed it to 93772 (over the ceiling). Cascaded into failures in
phase6-capstone-conformance, execute-phase-completion-reconciliation,
claude-orchestration, and the compact-content drift-report test.

Also caught: tests/package-legitimacy-gate.test.cjs anchors a
"decision is conditional, not unconditional" safety check on the literal
phrase "first option" in the decision bullet — which #4095 deliberately
removes, since there is no more unconditional first-option pick. The test
was asserting an assumption this change intentionally makes obsolete;
re-anchored on tokens that still identify the bullet ('decision',
'auto-spawn') without weakening what the test actually verifies (the
bullet must still carry a blocking-human carve-out).

Also fixed a word-order mismatch between my own new test's regex and the
actual doc text it was asserting against (tests/auto-select-attribute.test.cjs).

Regenerated the compact-content benchmark baseline
(tests/fixtures/compact-content-benchmark-baseline.json) to match the new
byte counts.

Emitted-Drift-Ack-Growth: gsd-executor.md — +7 bytes (49138 -> 49145), from the auto_select carve-out added to the checkpoint:decision auto-mode bullet; already trimmed once to fit the 49152 hard cap.
Emitted-Drift-Ack-Growth: execute-phase.md — +12 bytes (93564 -> 93576), from the same carve-out in the orchestrator's decision bullet; kept 24 bytes under the frozen 93600 ADR-857 ceiling after two rounds of trimming for clarity vs. margin.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#4095): backfill changeset PR number

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-20 23:47:01 -04:00
Tom Boucher
a8394713d1 fix(#4801): init.manager resolves archived phase directories through findPhaseInternal (#4893)
* test(#4801): failing-first — an archived phase directory must resolve and report complete in init.manager

* fix(#4801): init.manager resolves archived phase directories through findPhaseInternal

The private current-milestone-only scan (matchPhaseDirs over listMilestonePhaseDirs)
counted archived phase directories as missing, so an archived phase with a passed
verification reported no_directory/phase_complete:false. findPhaseInternal — already
imported, already the shared primitive for five other init commands — searches the live
directory first and falls back through the workstream-scoped archive (#2855); the private
copy and its single-consumer entries list are retired.

* chore(#4801): backfill changeset PR number (4893)

---------

Co-authored-by: sim <sim@local>
2026-09-20 06:45:38 -04:00
0xdhx
88b5775dc8 enhance(#4223): default-off interaction capture for gsd-ui-auditor via the chrome-devtools CLI (#4477)
* enhance(#4223): default-off interaction capture for gsd-ui-auditor via the chrome-devtools CLI

gsd-ui-auditor is chartered to audit interaction and handed a capture
driver with no interaction verb: `npx playwright screenshot` cannot
click, fill, hover, press or snapshot, so a hover state, an open menu,
a focus ring or a form's validation state never appears in its
evidence and every Experience Design finding degrades to code reading.

Implements the shape approved at triage, not a new capability:

- capabilities/ui/capability.json declares `workflow.ui_interaction_capture`
  (boolean, default false) on the capability that already owns the
  auditor (ADR-894 one-owner invariant); capability-registry.cjs regenerated.
- gsd-core/workflows/ui-review.md reads the key through gsd_run and hands
  it to the auditor as `interaction_capture:` in the spawn <config> block —
  the auditor carries no gsd_run resolver, so the key travels by value.
- agents/gsd-ui-auditor.md gains an anchored interaction-capture section
  AFTER the static block. With the key on and a Chrome binary resolved it
  starts the `chrome-devtools` CLI (chrome-devtools-mcp, floor ^1.8.0) on
  an --isolated profile, opens the dev URL the static block reached,
  takes the a11y snapshot for element uids, captures the baseline and a
  Tab focus-ring state, drives the UI-SPEC's interactive components, saves
  console output, and stops the daemon unconditionally. Key off, no dev
  server, or no Chrome: one status line, and the Playwright-only static
  path runs exactly as before — the static fence is untouched.

Needs only Bash: no MCP server, no tools: change. Chromium-only by
nature; Firefox/WebKit stay on Playwright. `wait_for` is MCP-only, so
readiness is polled through evaluate_script.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* test(#4223): bind the interaction-capture shape and containment

- manifest, generated registry, config schema and config-set/loadConfig
  all know workflow.ui_interaction_capture as a default-off boolean, and
  hand-written non-booleans fall to the slice default
- the orchestrator reads the key and hands it down; the auditor never
  grows a gsd_run dependency
- the static fence stays Playwright-only and the interaction fence
  chrome-devtools-only, so key-off is today's path
- the interaction fence runs under bash with a stub driver on PATH: key
  off / absent / no dev server / no Chrome invoke nothing; the happy path
  starts first and stops last on the [selected] pageId with the documented
  flags; a failed capture is removed and not counted; new_page and start
  failures still honour the stop-only-if-started rule; CHROME_BIN and
  CHROME_DEVTOOLS_MCP_VERSION overrides flow through
- docs/CONFIGURATION.md row shape; registered in the docs-guard lane

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* docs(#4223): document workflow.ui_interaction_capture and its how-to

- docs/CONFIGURATION.md: one row in the workflow.* table, default-off
- docs/AGENTS.md: the gsd-ui-auditor entry names the key and what the
  interaction-capture section adds, skips and never claims
- docs/how-to/enable-ui-interaction-capture.md: turn it on, read the
  `**Interaction captures:**` outcomes, what it does not do, turn it off
- docs/README.md: index the how-to beside live-DOM verification

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* chore(#4223): add changeset

Added-type fragment; pr: carries the issue number until the PR exists.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* enhance(#4223): use the /gsd:ui-review namespace form in the auditor's prose

Claude-facing source (agents/, workflows/) uses the /gsd:<cmd> namespace;
the hyphen form is retired there and the slash-command-namespace guard
rejects it. docs/ keep the hyphen form by convention.

Emitted-Drift-Ack-Growth: gsd-ui-auditor.md — #4223: the anchored default-off interaction-capture section (prose + one bash fence) appended after the static Playwright block inside <screenshot_approach>, plus one `**Interaction captures:**` line in each of the two report templates, one completion-checklist line and one Step-3 sentence. The static fence is byte-identical to next; nothing was removed or reordered.
Emitted-Drift-Ack-Growth: ui-review.md — #4223: a two-line config-get read + true/false normalisation in step 0 and one `interaction_capture:` line in the spawn <config> block with a three-line note on why the value travels by prompt. No step, gate, or dispatch shape changed.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* enhance(#4223): per-run daemon session, bounded navigation, and step failures that count

Three findings from the pre-file adversarial review of the interaction
fence, folded in:

- `--sessionId <epoch>-<pid>` on every driver call. `start` restarts
  whatever daemon shares its session and --isolated isolates only the
  browser profile, so two concurrent audits — or an audit beside the
  operator's own CLI daemon — would otherwise stop each other. The CLI
  accepts hex and dashes only; the id is validated by the test stub.
- `new_page --timeout 30000`: the one verb that takes a bound, placed
  before every verb that does not, so a hung page is caught first.
- a failed take_snapshot or press_key now increments the failure count
  and is named on stdout; two clean screenshots can no longer read as
  `0 failed` after the step that gives the interactions their uids failed.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* enhance(#4223): subshell-unique session id, CRLF-safe page-id parse, stale-snapshot removal

Second review round, both reviewers:

- session id is `<epoch>-<BASHPID>-<RANDOM>`: `$$` is inherited by a
  subshell, so two audits forked from one parent in the same second
  shared an id and could stop each other's daemon (driven by the reviewer)
- `tr -d '\r'` before the `[selected]` parse so a CRLF-emitting driver
  under Git Bash still matches the `$` anchor, and `|| true` on the
  assignment so a failed new_page cannot abort the block under
  `set -e -o pipefail` before the unconditional stop
- a failed take_snapshot removes any snapshot.txt it left or inherited
  from a reused directory, so stale uids never drive the interactions
- `<config>` placeholder is `{interaction_capture}`, lowercase like its
  `{phase_dir}` / `{padded_phase}` siblings — the block is a prompt
  template, not a bash heredoc
- how-to: the `not captured` row no longer claims the daemon started

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* enhance(#4223): check new_page's exit status before parsing its output; regression cases for the edges

Third review round:

- a new_page that prints a page line and then exits non-zero is a failed
  navigation, not a page id: the exit status is checked in an `if` before
  the output is parsed (driven by the reviewer against the previous
  `|| true`, which masked exactly that)
- regression cases for what the last two rounds added: CRLF driver
  output, a stale snapshot removed on failure, partial-output new_page
  failure, and the whole fence under `set -e -o pipefail` (both the
  failed-navigation path and the happy path)
- the harness whitelist gains `date`; the session-id assertion now
  requires all three parts, so a silently empty epoch cannot hide again

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* enhance(#4223): keep gsd-ui-auditor under the DEFAULT-tier size cap; changeset pr placeholder

- the three review folds pushed agents/gsd-ui-auditor.md to 25179 bytes,
  over the 24576-byte hard cap tests/agent-size-budget.test.cjs enforces;
  the interaction section's comments are tightened to the same content
  in fewer bytes (23559 now). No bash changed — the fence's own tests and
  the real-browser run are unchanged.
- .changeset/vivid-yaks-fly.md carries the policy placeholder `pr: 0`, which
  the post-create backfill rewrites to the PR's own number.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* chore(#4223): set changeset fragment pr to 4477

* test(#4223): compare the fence's status path with the separator the fence uses

On the windows-latest lane the happy-path case failed on `\interaction` vs
`/interaction` alone: the fence joins "$SCREENSHOT_DIR/interaction" with a
literal slash, and the assertion built its expectation with path.join. Every
other case in the file passed on that lane, including the CRLF and
errexit/pipefail ones.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PanfY8KaLb4RVVubcUoGP6

* test(#4223): drop the inert file-header allow-test-rule marker

Review round 1 on #4477: the `source-text-is-the-product` marker sat at
line 2, outside no-source-grep's 8-line lookahead of every readFileSync
site (the first is ~60 lines down), so it suppressed nothing. It was also
unnecessary: every read in this file is a .md/.json path, which the rule
does not trigger on. Deleted rather than relocated — there is no site to
relocate it to. Negative control: `eslint` on the file is clean without it.

* chore(#4223): regenerate the platform-conformance-tier lists for the new test

Review round 3 on #4477. `next` gained chore(#4591)'s platform-conformance-tier
gate after this branch opened; its two committed lists must name every file
under tests/, and this PR's tests/ui-interaction-capture.test.cjs had never
been in them. Once the branch was updated against next the lists were stale
and three jobs went red on head 575667dd: lint-tests (gen-platform-conformance-tier
--check), conformance test (macos-latest) at 546 !== 547, and shard 1/3's
fragment-single-edit-propagation, which sees the same staleness as regen:derived
touching files beyond the fragment edit under test.

Regenerated with the repo's own generators, no hand-editing. The general tier
goes 546 -> 547 and the macOS tier 196 -> 197, each by exactly this one entry;
both --check arms are clean. Verified the red is this PR's own file and not
base drift: at upstream/next both generators report "list matches" (546 / 196),
and our committed copies were byte-identical to next's before this commit.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015CBQTeGX1JYHF5DRWp4wvZ

* fix(#4223): bound, confine and trap the chrome-devtools driver fence

Round 4 — three findings in one fence, interleaved on the same lines, so one
commit:

- Every driver call is time-bounded. `cdt <ceiling> <verb>` runs the client as a
  background job in its own process group (`set -m`) under a watchdog that kills
  the whole group at the ceiling — TERM, then KILL two seconds later. One pid is
  not enough: npm forwards SIGTERM only to its direct child, so killing `npx`
  alone leaves the client holding the fence's stdout and a `$(cdt … new_page)`
  capture blocked past the ceiling (driven against a real npx tree by the
  round's adversarial review; the pid-only first cut of this commit had exactly
  that hole). The watchdog is an exec'd bash (`"$BASH" -c`), never a `( … )`
  subshell: a subshell inherits bash's saved copies of the caller's stdio (the
  fds ≥10 a function-level `>/dev/null` redirect leaves behind) and holds them
  open, so a runner waiting for EOF waited out the whole 60 s ceiling whenever a
  watchdog outlived its kill — measured as the intermittent 30 s test run the
  review flagged; 0/60 after. It polls the job's process GROUP (`kill -0 --
  -pgid`, every 0.1 s) and stands down by itself once the group is empty;
  nothing ever signals it. The group, not the leader pid: a child can outlive
  the leader while holding the `$(cdt … new_page)` pipe, and a leader-pid poll
  stood down at once and left the substitution open-ended (driven by the
  round's adversarial review at 6× the ceiling; a pgid cannot be reused while
  any member lives, which a bare pid can). The daemon `start` launches is
  spawned detached (its own session) and never in that group. Two platforms
  forced the never-signalled shape. Under bash 3.2.57 the earlier `trap … TERM;
  sleep & wait $!` form ignored its TERM in 3 of 300 fast calls and slept out
  the whole ceiling — CI's macos job hanging 30 s right after `start`. On Git
  Bash a signal to a watchdog still starting up hung the fence's `wait` for it:
  18 of 20 fence tests at the harness's 30 s cap in 3 of 3 full-file runs,
  while a fence slowed by xtrace, or three tests run alone, never hit it (a
  startup race; the mechanism is not pinned further). Polling: 0/300 slow calls
  and 0 orphaned sleeps under 3.2.57 and 5.2, the fence suite 20/20 in 3 of 3
  full-file runs on Git Bash 5.2.37 (fractional `sleep 0.1`: driven on GNU,
  msys and busybox sleep; BSD sleep documents it). A clock that cannot launch
  (`sleep … || exit 0`) stands the watchdog down rather than firing at once
  and killing a healthy call — by design that leaves a hung call unbounded,
  the pre-round-4 behaviour, instead of failing a healthy one. A hung call
  returns once its group is gone: at the ceiling, plus up to the 2 s
  TERM-to-KILL grace. The KILL after the grace is sent only to a group that
  is still alive: a pgid freed during the grace can be reused, and an
  unconditional KILL could hit an unrelated group (the round's review).
  `start` (npx fetch + Chrome launch) gets CHROME_DEVTOOLS_START_TIMEOUT
  (180 s), every verb CHROME_DEVTOOLS_STEP_TIMEOUT (60 s). timeout(1) is absent
  on macOS and this agent carries no gsd-tools resolver, hence a bash watchdog
  rather than either.
- --allowUnrestrictedPaths -> --workspace "$INTERACTION_DIR": the driver may
  write under the run's interaction/ directory and nowhere else. Relative, like
  every --filePath (unchanged from rounds 1-3): the daemon resolves both against
  one cwd (chrome-devtools-mcp 1.9.0 spawns it with cwd: process.cwd() and
  path.resolve()s both), and a relative path needs no dialect translation — an
  absolute `pwd -P` path is an msys path on Git Bash, which a Windows-native
  daemon cannot resolve (CI's windows conformance shard caught the first cut).
  --workspace is a 1.9.0 flag (absent from 1.8.0's `start --help`, verified),
  so the documented floor moves from ^1.8.0 to ^1.9.0, where
  --allowUnrestrictedPaths is deprecated.
- `stop` is owed by an EXIT trap after a successful `start`, not by position
  (it replaces any earlier EXIT trap — none exists in this file); the explicit
  call keeps it in order, a flag makes the trap a no-op afterwards, and only the
  shell that installed the trap may act: a subshell copy of the fence state
  carries CDT_STARTED=1 and, under a timing race CI's ubuntu job hit (reproduced
  locally at 3/40 under load: the second `stop` came from a subshell pid, never
  main), issued a second `stop`. The identity is `$(exec /bin/sh -c 'echo
  "$PPID"')`, not $BASHPID — macOS ships bash 3.2, where BASHPID does not exist
  and CI's macos conformance job showed the guard comparing empty to empty. The
  fence was driven under bash 3.2.57 for the injected-subshell, errexit
  failed-new_page, errexit failed-resize, hung-start, hung-new_page and happy
  paths. A failed resize_page is a counted failed step now, not the one bare
  command an errexit runner could abort on.

Prose in the section is tightened to pay for the mechanism: 23559 -> 24517
bytes against the 24576 DEFAULT-tier cap.

Tests: the stub driver hangs as a real child tree (sh waiting on a child that
holds stdout — never an exec), so a pid-only kill fails the new
aHungNewPageWhoseChildHoldsStdoutIsStillCutOffAtTheCeiling test (negative-
controlled: it blocks for the harness's whole cap on the old wrapper). A hung
start and a hung capture are cut off within ceiling + grace + slack and still
reach stop; an injected bare failure under errexit reaches stop through the
trap, exactly once; an injected subshell call of cdt_stop issues nothing; the
happy path issues exactly one stop; every driver call site names a ceiling and
the only bare $CDT is the wrapper's own spawn; the start line carries
--workspace with the capture directory, every --filePath lies under it, and no
code line carries --allowUnrestrictedPaths. A driver whose leader exits at
once while a child keeps holding the capture pipe is still cut off at the
ceiling (negative-controlled: a leader-pid poll blocks for the harness's whole
cap). A watchdog whose clock cannot launch leaves a 300 ms driver call alone
(negative-controlled: the trap form kills `start` in under 20 ms). The harness
EXPORTS its stub-only PATH — unexported, the exec'd
watchdog fell through to bash's compiled-in default PATH and never saw the stub
dir — and ships `sleep` there as an exec-wrapper script (portable to Git Bash,
pid-preserving).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LgNMb2G67rAJfFQRHEBTAj

* fix(#4223): gitignore gate covers the capture directory, and upgrades an existing file

Round 4 Blocker. The gate enumerated image extensions, so snapshot.txt (the
accessibility tree, with entered form values) and console.txt (which can carry
tokens) were committable by `git add .`. The gate now ignores `interaction/` as
a directory — the next artifact type is covered by construction — and it appends
whatever an existing .gitignore lacks instead of writing once. The write-once
form was the same defect one step later: every project that had already run an
audit would never have received the new pattern at all.

Tests run the gate fence under bash: a fresh file carries every pattern; an
image-only file from an earlier audit gains interaction/ and keeps its own
header without duplicating present lines; a second run appends nothing.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LgNMb2G67rAJfFQRHEBTAj

* test(#4223): declare the interaction-capture anchor as a comment marker

The #4324 colon-token gate (slash-command-namespace) landed on next after this
branch was opened and reads `<!-- gsd:ui-interaction-capture -->` as an
unconvertible /gsd: command token. It is a section anchor of the same family as
gsd:live-dom-families and gsd:write-continue, so it is declared in
COMMENT_MARKER_TOKENS rather than renamed. Found by running the base-added
gates against the merged tree; CI at ca8d2508 predates the gate.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LgNMb2G67rAJfFQRHEBTAj

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
Co-authored-by: CI Rebase Check <ci@gsd-redux>
2026-09-20 05:45:15 -04:00
Tom Boucher
9a41a95212 fix(#4717): consult the per-install runtime marker at both identity seams (#4861)
* test(#4717): add failing-first coverage for the two runtime-identity marker seams

* fix(#4717): consult the per-install runtime marker at both identity seams

resolveReportedRuntime (agent_runtime) and loadConfigResolved
(config.runtime) both ignored the per-install .gsd-runtime marker that
resolveRuntime and the model-resolver gate already read. On a
multi-runtime machine (e.g. a globally exported CODEX_HOME), host sniffing
misreported every Claude Code session as codex, and a shared
defaults.json stamped by the first non-Claude install leaked its runtime
to every other one.

Seam 1: the reported-runtime ladder becomes explicit > install marker >
host detection > claude. Seam 2: loadConfigResolved fills an empty
config.runtime from GSD_RUNTIME then the marker, copy-on-write (the
builtin-defaults branch returns a shared object). Explicit runtimes and
marker-less trees are unchanged.

* fix(#4717): a marker-detected runtime opts into its tier map (decision a)

* fix(#4717): stamped-defaults leg, marker fail-safe, docs, review fold-ins

* chore(#4717): backfill changeset PR number (4861)

---------

Co-authored-by: sim <sim@local>
2026-09-18 13:50:01 -04:00
Tom Boucher
c5629bbe74 fix(#4734): degrade worktree isolation when the root has no git repository (#4843)
* test(#4734): non-git root must degrade worktree isolation (failing first)

* fix(#4734): degrade worktree isolation when the root has no git repository

* fix(#4734): review fold-ins — 3972 ladder fixture, parity fixture, docs row, message wording

* chore(#4734): backfill changeset PR number (4843)

---------

Co-authored-by: sim <sim@local>
2026-09-18 03:16:25 -04:00
Tom Boucher
c9a5cc3e12 fix(#4683): detect cross-plan threat-ID duplicates before execution (#4828)
admin_reason: missing-secondary-reviewer — self-authored overnight sweep; two orthogonal agent reviews ran (isolated adversarial REQUEST-CHANGES with all six findings dispositioned, plus a bypass/consumer-lens APPROVE) and the sha-pinned bench passed 46362/0 on the merged head.
2026-09-17 19:06:55 -04:00
Tom Boucher
2bfff17ff8 fix(#4682): route stale verification to the verifier regeneration path (#4818)
* test(#4682): add failing-first coverage for stale verification routing

* fix(#4682): route stale verification to the verifier regeneration path

The stale routing entry sent users to /gsd-verify-work — but verify-work
never rewrites VERIFICATION.md (its only write is the human_needed
canonicalization), so following the advice re-ran UAT, reached the same
stale check, and looped. init's projector and execute-phase's generic
next_command presentation both mirror this entry, so the dead end appeared
on three surfaces.

The stale entry now routes to execute-phase, and execute-phase's
all-plans-complete resume tree gains a stale arm (as a steps/ part, keeping
the spine under its frozen ADR-857 ceiling) mirroring the missing route:
skip cross_ai_delegation/execute_waves/checkpoint_handling, continue at
aggregate_results, and let verify_phase_goal re-dispatch the gsd-verifier —
regenerating VERIFICATION.md and its digest, marked phase or not. The
non-stale fall-through. Staleness detection, the digest format (#4623),
every other routing entry, and the #3684 resume arms are untouched.

Emitted-Drift-Ack-Growth: verify-work.md — stale stop rewritten to dispatch the verifier and re-check (#4682)
Emitted-Drift-Ack-Growth: execute-phase.md — VERIFY_STATUS == stale resume arm added to condition 3 (#4682)

* test(#4682): register the stale-reverification part and align projected commands

The new steps/ part must be registered in the inventory manifest and the
per-runtime golden install trees (regen:derived); the projected stale
next_command is /gsd-execute-phase <phase> (formatGsdSlash prefixes the
runtime surface), the human_needed bare-report probe keeps routing to
verify-work (unchanged semantics), and init-manager's recommended action
follows the new command.

* test(#4682): prefix the remaining stale routing assertions with the runtime surface

Nine stale next_command assertions and the human_needed bare-report probe
still carried the unprefixed or flipped forms from the earlier line-number
edit; all now assert the shipped /gsd-execute-phase <phase> projection,
with the human_needed probe reverted to its unchanged verify-work routing.

* test(#4682): align the last stale projection assertions with the execute-phase route

* docs(#4682): backfill changeset PR number

* test(#4682): refresh the compact-content baseline after the rebase

The rebase onto the #4670 squash brought verify-work.md's bounded
reconciliation text into this branch; the committed compact-content
baseline now reflects the post-rebase split sizes. Local --check is
clean; the previous bench drift (+243) was the baseline, not the diff.

* fix(#4682): carry the response_language directive in the stale-reverification part

The new steps/ part is its own coverage unit for lint-response-language-coverage;
it takes the shared canonical directive line like its sibling execute-phase
parts.

---------

Co-authored-by: sim <sim@local>
2026-09-17 02:23:03 -04:00
Tom Boucher
5e729445d3 fix(#4657): give the ui consideration probe a text_en language channel (#4804)
* test(#4657): add failing-first coverage for the ui probe's text_en channel

Mirrors the #3717/#4156 test shape onto the UI adapter: a failing-first
proposeConsiderations regression (Danish text + English text_en must classify
as its English equivalent, not land in the #1110 unclassified sentinel),
proposeElements/analyzeCoverage/CLI end-to-end pairs, fail-closed text_en
validation cases (empty/whitespace/non-string, unconditional under an
elements override), a ui-phase.md Step 9.5 workflow-prose contract test, a
reference-doc Inputs parity test, and a fast-check property proving any
cue-matching prose classifies identically under a cue-free Danish rendering
plus text_en. All new assertions are RED until src/ui-consideration-probe.cts
and the workflow/reference docs are updated.

* fix(#4657): give the ui consideration probe a text_en language channel

Element gains an optional text_en; classifyElement's own signature stays
untouched (a locked, directly-tested export) and the text_en ?? text
selection is pushed to the two classification call sites (proposeConsiderations,
proposeElements) instead. text_en is validated fail-closed: an empty or
whitespace-only value throws rather than silently winning the ?? fallback and
degrading classification to zero kinds.

Mirrors #3717/#4156 onto the UI adapter: ui-phase.md Step 9.5 gains the
Non-English projects section (mirroring spec-phase Step 5.5) and the
ELEMENTS_JSON shape comment documents the field with both zero-applicable
guard arms named; the reference doc's Inputs section, the PROBE.ui CONTEXT
predicate (with both derived indexes regenerated), and the nav-override
test expectation stay in sync. The ui-phase contract test carries the
site-scoped allow-test-rule marker and its cluster is registered in the
test-file-count allowlist ratchet.

Emitted-Drift-Ack-Growth: ui-phase.md — Non-English text_en section, ELEMENTS_JSON shape comment, and two-arm guard wording (#4657)

* docs(#4657): backfill changeset PR number

---------

Co-authored-by: sim <sim@local>
2026-09-16 13:46:40 -04:00
Dennis Alexis Valin Dittrich
ad1477d659 enhance(#4154): validate configured entrypoints before reporting install success (#4249)
* test(260903-m7p): expose configured-entrypoint validation gap

* enhance(260903-m7p): validate configured entrypoints before success

* test(260903-m7p): require pre-success entrypoint validation

* enhance(260903-m7p): gate install success on entrypoints

* test(260903-m7p): cover configured entrypoints across runtimes

* enhance(260903-m7p): cover emitted runtime entrypoints

* fix(260903-m7p): sandbox HOME in finishInstall test and fix changeset pr number

- finishInstall(...'cline'...) calls writeNonClaudeDefaults(runtime) in-process
  before the new configured-entrypoint assertion throws. Without a HOME +
  config-location-env sandbox that write resolved through the ambient
  environment and landed in the developer's live ~/.gsd (confirmed absent on
  origin/next baseline, present only on this branch — full-suite HERMETICITY
  WARNING). Sandbox HOME/USERPROFILE and scrub config-location env for the
  duration of the test, matching the existing in-process finishInstall/
  install() pattern in tests/install.test.cjs (#2665).
- .changeset/quick-wasps-sing.md: pr: 0 is a never-backfilled placeholder
  (CONTRIBUTING.md) that fails changeset-lint's invalid_pr check; set to the
  fork PR number until the upstream PR number is known.

* fix(260903-m7p): repair cross-platform and pre-existing shape fallout

- tests/configured-entrypoint-validation.test.cjs: the win32 branch of
  ensureCodexHooksJsonSessionStart writes a .cmd shim under
  <codexRoot>/hooks/; create that dir in the test (the real installer only
  calls this once hooks/gsd-check-update.js already exists) and assert the
  platform-common entrypoint shape instead of a fixed non-Windows array,
  since win32 legitimately emits two entries (cmd shim + script).
- tests/install.test.cjs: finishInstall's shared settings-json return now
  carries configuredEntrypoints/rollbackInstallerMigrations for every
  runtime on that path (trae included, not just Claude/Cursor/Windsurf);
  update the trae install() exact-shape assertion to match.

* fix(260903-m7p): keep .sh interpreter tracking consistent with unresolved bash

configuredEntrypointsForHook's shell branch dropped interpreterCandidates
entirely when resolveBashExecutable returned null, unlike the sibling
portableHooks runner entry a few lines below (which correctly falls back to
the literal 'bash' token). Found via agy adversarial review; verified
unreachable through the current call graph (buildHookCommand's own
resolveBashRunner==null gate already short-circuits before
recordConfiguredHookCommand runs), so this is a defensive consistency fix,
not a live-bug patch — kept for the next caller that does not share that
gate.

* chore(260903-m7p): backfill changeset pr number to the opened upstream PR

.changeset/quick-wasps-sing.md carried the fork PR number (16) as a
placeholder until the upstream PR existed; open-gsd/gsd-core#4249 is now
open, so record its real number per CONTRIBUTING.md's changeset pr-field
convention.

* fix(#4154): track already-registered hooks for entrypoint validation on update

applySettingsJsonHooks registers each guard hook only if absent, so a hook
already present from a prior install keeps its stale on-disk command. The
new entrypoint tracker always records the freshly-computed command for it,
which never matches what is actually persisted, so the exact-string filter
in finishInstall silently dropped it from validation — the Blocker case
this feature exists to catch (an already-installed entrypoint going stale
between installs) was exactly the case it never validated.

Match on the managed script's basename instead, which the persisted
command carries either way, so an already-registered hook stays in the
validated set. Regression test forces this path by mutating a
freshly-installed hook's persisted command before a second install.

* fix(#4154): distinguish an unreadable script from a missing one

validateConfiguredEntrypoints folded an EACCES statSync failure into the
same 'missing' reason as ENOENT, misreporting a real permission problem as
an absent file. Check the error code and report 'unreadable' instead.

* docs(#4154): document entrypoint validation's rollback and PATH scope

CONTEXT.md's Runtime Hooks Surface Module / Installer Module entries had
no mention of ConfiguredEntrypoint/validateConfiguredEntrypoints, despite
bin/install.js x CONTEXT.md being this repo's strongest co-change pairing.

The update-gsd.md how-to overstated what a validation failure undoes: for
Codex/Cursor/Windsurf/Kimi, their own writer already persisted hooks.json/
config.toml inside install() before the aggregate validation call runs, so
there is no rollback path for that write regardless of "where available"
phrasing. Also note that interpreter resolution checks the installer's own
PATH, not necessarily the PATH a hook fires under later (#2979 launchers).

* chore(#4154): point changeset pr field at the fork PR while CI runs there

Mirrors the branch's own prior backfill commit: pr: matches whichever PR
number changeset-lint is currently validating against (fork PR #16 during
the fork-first CI/review loop), flipped back to the upstream PR number
right before the final push to open-gsd/gsd-core.

* fix(#4249): address adversarial-review findings in entrypoint validation

An internal adversarial review (agy/gemini-3.8-flash-high) of the whole PR
found several real gaps beyond the human reviewer's Blocker, verified
against source before fixing:

- Codex's install() result bound rollbackInstallerMigrations to the narrow
  installer-migrations-only rollback instead of restoreCodexSnapshot (#3245),
  the full pre-install snapshot/restore Codex already owns for exactly this
  case — a validation failure discovered outside install() reverted nothing
  of the config.toml/hooks.json that call had already written.
- The register-only-if-absent basename match from the prior fix used a bare
  substring, which an unrelated user command mentioning the same filename
  could false-positive into GSD's validated set — anchored on the
  `/hooks/<basename>` path segment instead.
- nodeCandidates checked raw process.execPath (always true — we're running
  in that process) instead of normalizeNodePath's stable version-manager
  alias, the same one buildNodeRunnerChainToken bakes as its first choice —
  a false green regardless of whether that alias itself still resolves.
- An entry with no interpreterCandidates (Cline's PreToolUse hook, or a
  Windows-Claude .sh hook invoked without a bash runner) runs via its own
  shebang; validateConfiguredEntrypoints checked only file-type, never the
  execute bit. Cline's writer also never reported an entrypoint at all.
- Duplicate (configPath, scriptPath) entries (e.g. Kimi's context-monitor
  hook registered across several events) were validated once per duplicate.

Each fix is covered by a new or extended test; the Codex one required
inlining runCodexInstall's env sandboxing so the rollback closure — which
re-resolves the $HOME-relative skills root live — runs before the sandbox
is torn down, matching how installAllRuntimes' real aggregate gate calls it.

* docs(#4249): document the round-2 entrypoint-validation fixes

Runtime Hooks Surface Module and Installer Module entries now name
ConfiguredEntrypoint's not-executable reason, the normalizeNodePath
alignment, Cline's tracked hook, and which install() result the
finishInstall/installAllRuntimes rollback path actually reverts per
runtime (Codex's full snapshot vs. the others' narrow migrations-only
rollback).

* chore(#4249): point changeset pr field at the upstream PR now that fork CI is green

* fix(#4249): address agy adversarial-review findings

- validateConfiguredEntrypoints: statSync alone never detects a
  chmod-000 script (it only needs parent-dir search permission), so an
  interpreter-invoked entry with an unreadable script passed validation.
  Add an explicit R_OK check for the interpreterCandidates branch only —
  the candidate-less/shebang branch already has its own X_OK gate.
- docs/how-to/update-gsd.md: the blanket "does not revert" claim was
  false for Codex, which reverts config.toml/hooks.json via its full
  pre-install snapshot; qualify it per runtime.
- tests/codex-config.test.cjs: the #4249 rollback regression test
  asserted skills/ and VERSION were reverted but never asserted
  config.toml/hooks.json were too, despite the test's own stated intent.
- CONTEXT.md: qualify which interpreterCandidates entries get
  normalizeNodePath'd (Node hooks only, not .sh/bash) and note Codex's
  Windows .cmd shim as a third candidate-less case that relies on
  extension dispatch, not a shebang.

* fix(#4249): validate Cline's PATH-dependent interpreter, not just its execute bit

Cline's hook is a hybrid: it self-executes via '#!/usr/bin/env node',
so it needs the execute bit (like any shebang-invoked entry), but its
interpreter is looked up on PATH by 'env' at hook-fire time (unlike
every other GSD JS hook, which bakes an absolute node path specifically
to avoid that dependency). The candidate-less/interpreterCandidates
fork treated these as mutually exclusive, so Cline's entry silently
skipped interpreter resolution entirely — a completely missing 'node'
on PATH would still validate successfully.

Add an orthogonal selfExecutable flag so both checks run for entries
that need them. (CodeRabbit finding on the fork rehearsal PR.)

* fix(#4249): address second-round adversarial review findings (opus + agy)

- validateConfiguredEntrypoints: R_OK now runs for every scriptOk entry,
  not just interpreterCandidates ones — a self-executable shebang script
  is still opened and read by its kernel-invoked interpreter, so X_OK
  alone never proved it was readable.
- selfExecutable is now the sole, explicit source of truth for the
  execute-bit check (every producer that needs it sets the flag) instead
  of being partly inferred from an absent interpreterCandidates, which
  Cline's hybrid entry also carries.
- The execute-bit check now skips explicitly on win32 (matching
  resolveExecutableBinary's own carve-out) instead of relying on Node's
  accessSync(X_OK)-as-F_OK no-op, which only protects a real Windows
  machine and not a test that simulates win32 on a POSIX runner.
- bin/install.js: fixed a stale comment claiming no runtime's
  install()-time writes have a rollback path — Codex's does
  (restoreCodexSnapshot) — and added the omitted Cline to both that
  comment and CONTEXT.md's equivalent lists.
- CONTEXT.md: fixed the Cline description left stale by the previous
  commit's selfExecutable addition, and rewrote the validation-mechanism
  paragraph for clarity (writing-for-agents pass).
- docs/how-to/update-gsd.md: split an overloaded 4-clause sentence.
- Removed a fault-injection integration test that could not reliably
  exercise the real installAllRuntimes -> finalize -> rollback wiring
  without fighting the installer's own pre-registration existence
  guards; the constituent pieces remain covered individually.

* fix(#4249): pin platform in X_OK-testing entries so they're deterministic cross-CI-runner

X_OK is a POSIX-only concept, skipped entirely when an entry's platform
is win32 (matching production). Two test entries omitted platform,
defaulting to process.platform — on an actual windows-latest CI runner
that silently skipped the very check they were meant to exercise,
turning 'not-executable' into a false pass. Pin platform: 'linux' so
these are deterministic regardless of which OS runs the suite.

* fix(#4249): classify EPERM the same as EACCES in statSync error handling

Windows raises EPERM (not EACCES) for a parent directory that couldn't
be traversed into — was falling through to 'missing', misreporting a
genuine permission problem as a nonexistent path.

* docs(#4249): address final CodeRabbit doc-completeness findings

- CONTEXT.md: install()'s documented result shape omitted
  configuredEntrypoints; the ConfiguredEntrypoint shape omitted
  selfExecutable.
- docs/how-to/update-gsd.md: the failure-mode sentence omitted
  unreadable and lacks-execute-permission, which the installer also
  rejects.

* fix(#4249): stop double-validating every configured entrypoint on install/update

installAllRuntimes' finalize() already runs assertConfiguredEntrypoints
once over the aggregate set; finishInstall then re-ran the identical
check per runtime in the printSummaries loop right after, so every
entrypoint paid its statSync/accessSync/interpreter-resolution cost
twice on every install and update. Add entrypointsAlreadyValidated to
skip the redundant pass specifically on that path, while leaving the
check intact for any caller that invokes finishInstall directly.

* chore(#4154): point changeset pr field at rehearsal fork PR while CI runs there

* perf(#4249): memoize interpreter candidate resolution across entrypoints

resolveExecutableBinary walked PATH once per (entry, candidate) pair; a
typical install has a dozen-plus entries sharing the same few candidate
lists (process.execPath for JS hooks, bash for shell hooks). Cache by
(platform, candidate) so each distinct pair resolves once per validation
call instead of once per entry.

* chore(#4249): point changeset pr field at the rebased rehearsal fork PR

* fix(#4249): drop entrypoint tracking from the now-dead Codex event writer

#2586 (landed on next after this branch forked) removed install.js's
CODEX_EXTENDED_HOOK_EVENTS registration loop, so ensureCodexHooksJsonEvent
no longer runs during install or update. The ConfiguredEntrypoint records
this branch added inside it were therefore unreachable and untested. Restore
the function to its upstream shape; the entrypoints it used to report were
never collected by any caller.

* refactor(#4249): drop the revalidation bypass flag and the candidate cache

Both were this PR's own micro-optimisations over a set of roughly a dozen
entries. `entrypointsAlreadyValidated` let a caller turn the finishInstall
gate off to save one statSync/accessSync pass; `resolvedCandidateCache`
memoised resolveExecutableBinary across entries that are already deduped by
(configPath, scriptPath). Neither is measurable, and the flag was the only
way to reach finishInstall with validation disabled. finishInstall now
always validates what it is given.

* chore(#4249): point the changeset pr field back at the upstream PR

* refactor(#4249): track settings.json entrypoints without the hooksSurface gate

The install-surface writer only tracked configured entrypoints when the
runtime's descriptor also declared `hooksSurface: 'settings-json'`. Nothing
asserts that axis agrees with `installSurface`, so a descriptor that broke
the coupling would silently pass `configuredEntrypoints: undefined` and drop
that runtime out of the validation this PR adds — reintroducing the exact
'reports Done! over a broken entrypoint' failure #4154 exists to close.

Remove the dependence rather than test it: everything recorded on this path
lands in settings.json by construction, and the registered-command filter
already discards entries no persisted hook references.

* chore(#4249): put the changeset body in the documented two-part format

CONTRIBUTING.md and .changeset/README.md both show
`**<bold change>** — <symptom-led explanation>.`; the fragment was a single
unbolded sentence.

* chore(#4249): point the changeset pr field at the rehearsal fork PR while CI runs there

* fix(#4249): restore the whole manifest-tracked GSD file set on Codex rollback

#3245's snapshot covers config.toml, hooks.json, skills/gsd-*, agents/gsd-*
and gsd-core/VERSION. The install overwrites every other GSD-owned file too —
hooks/, gsd-core/CHANGELOG.md, scripts/, gsd-core/.gsd-runtime, the manifest
itself — before the entrypoint-validation gate runs, so a validation failure
left the new payload sitting on top of the restored old config.

Snapshot the file set the PREVIOUS install's gsd-file-manifest.json claims,
before runInstallerMigrations so the bytes are the true pre-install state, and
restore it from both Codex rollback closures ahead of the per-surface restores.
Files only the failed install introduced are removed, read from the manifest
now on disk. The manifest is already the authoritative record of what GSD owns,
so no second hand-written list can drift out of sync, and user-owned files are
never snapshotted or removed. Every path is confined through
resolveInstallRelativePath, so a hand-edited manifest cannot turn rollback into
an arbitrary-path write.

Non-Codex runtimes are unaffected: the snapshot is gated on the same
tomlConfigInstall + non-minimal condition as #3245's.

* fix(#4249): keep the managed-file snapshot honest in minimal mode and on a bad manifest

Two follow-on defects in the previous commit's snapshot:

- The capture was gated on `!isMinimalMode`, copied from #3245. A core/
  --minimal Codex install still writes gsd-core/, hooks/, scripts/ and the
  manifest, and restoreCodexSnapshot is reachable in that mode (#2695), so the
  snapshot came back empty while the rollback still ran — and its removal pass
  would have deleted every file the new manifest lists. Gate on
  tomlConfigInstall alone, matching where the rollback actually reaches.

- An unreadable or unparseable prior manifest was caught alongside ENOENT and
  treated as a fresh install. That is the same empty-snapshot state, so a failed
  update over a real install with a corrupt manifest could delete its prior
  payload. Track whether the pre-install GSD-owned set is KNOWN: ENOENT means
  known-empty; any other read error or a parse failure means unknown, and the
  restore closure returns without touching anything, degrading to #3245's
  narrower rollback. Deliberately not fatal — a corrupt manifest has to stay
  repairable by reinstalling over it.

Both paths are covered by red-checked regression tests.

* fix(#4249): snapshot Codex skills, agents and VERSION in minimal mode too

commit removed from the manifest snapshot. restoreCodexSnapshot is reachable
for a core/--minimal install (#2695), and its pass-2 sweeps remove every gsd-*
skill dir and gsd-* agent file the snapshot does not claim — so with an empty
minimal-mode snapshot a rollback deleted the whole skills/agents surface with
nothing to restore it from. Codex resolves skills to $HOME/.agents/skills via
the ADR-1239 skills-kind home override, so this is also the reason manifest
`skills/` keys do not resolve under configDir: that surface belongs to this
snapshot, not to the manifest-driven one.

Gate on tomlConfigInstall alone. _codexPreConfigRollback stays null in minimal
mode — doing nothing on an early failure is the non-destructive side.

Covered by a red-checked regression test that plants bytes in an alternate-home
skill file, reinstalls under the core profile marker, and asserts the rollback
restores it.

* fix(#4249): never remove on rollback unless a prior manifest proves what predates the install

Three defects in the manifest-driven Codex rollback, all in its removal half:

- ENOENT marked the snapshot usable, arming the removal pass on a FIRST
  install. GSD may have overwritten a user's file at a manifest-tracked path
  there, and no prior manifest records the difference — so rollback deleted it
  where before it merely left it overwritten. Absent, unreadable and malformed
  manifests now all leave the prior set UNKNOWN and skip removal entirely.

- Membership was tested against the map of files whose pre-install read
  SUCCEEDED, so a tracked file that existed but was unreadable read as
  introduced-by-this-install and was removed. Track the prior manifest's paths
  in their own Set and test against that.

- The unreachable "delete the manifest when there was no prior one" branch is
  gone: usable now implies a parsed prior manifest.

Also adds the end-to-end test the aggregate gate was missing — the four Codex
rollback tests drove the closure directly, proving the restore but not the
wiring. installAllRuntimes(['codex','cline']) under an emptied PATH makes
Cline's `env node` entry fail validation for real, and asserts Codex's payload
comes back.

Test preamble (HOME/USERPROFILE sandbox + config-env scrub) is now one helper
instead of six copies. Both new tests are red-checked.

* test(#4249): use unlinkSync, not rmSync, to drop the manifest in a test

lint:ci's raw-fs.rmSync rule points tests at helpers.cleanup for its
Windows-EBUSY retry budget. That budget is for directory trees; this removes a
single file, which unlinkSync says more precisely and the rule does not flag.

* chore(#4249): point the changeset pr field back at the upstream PR

* fix(#4249): use an unambiguous dedup key and surface partial-restore failures

trek-e's 2026-09-08 adversarial pass flagged two findings in the new
entrypoint-validation/rollback code:
- assertConfiguredEntrypoints' dedup key already used a raw NUL
  separator (introduced in ceebb65f2d), but git/Read render NUL as a
  space, so the key looked like a plain-space join to every reviewer
  that read the diff. Replace it with JSON.stringify([configPath,
  scriptPath]) so the separator is visible and unambiguous.
- restoreManagedFileSnapshot's per-file restore catch block claimed to
  'surface the original error' but only swallowed it, matching (and
  widening) the pre-existing #3245 restoreCodexSnapshot pattern. Add
  an actual console.warn using the existing best-effort-warning
  convention, scoped to just this PR's new function.

* fix(#4249): treat a files-less prior manifest as unknown, not known-empty

agy's gemini-3.8-flash-high adversarial pass (round 5) found and I
reproduced empirically: a structurally-valid manifest missing the
files key (e.g. {"version":1}) parses without throwing, so
Object.keys(undefined || {}) silently read as 'zero files predate
this install' instead of the UNKNOWN state the malformed-manifest
guard exists to produce. Rollback's removal pass then deleted every
GSD-owned file the failed install's own manifest listed, including
ones that predated it — the exact data loss the #4249 CodeRabbit
malformed-manifest fix was supposed to prevent, reachable through a
JSON.parse success instead of a failure. Route the shapeless case
into the same catch-all UNKNOWN path via an explicit shape check.
Regression test reproduces the deletion before the fix and confirms
the file survives after it.

Also extend restoreManagedFileSnapshot's removal-pass rmSync and
final manifest-rewrite catches with the same real console.warn
trek-e's round-4 review asked for on the per-file restore catch —
same rollback function, same operator-facing-signal gap.

* docs(#4249): correct which runtimes actually leave a written config on rollback

agy's completeness audit (round 5, holistic pass) caught this new
paragraph claiming 'for every other runtime, the configuration file(s)
already written during that update are left in place' — false for
Claude Code and other settings.json-based runtimes, whose write never
happens on failure (assertConfiguredEntrypoints runs before
finishInstall's writeSettings). Only Cursor/Windsurf/Kimi/Cline
actually match that description, since they persist their config file
inside install() ahead of the gate. Split the one sentence into the
three actual outcomes; matches the PR body's own accurate Before/After
wording, which this doc addition had drifted from.

* fix(#4249): clean up doc/comment mismatches and dead fields from opus review

Opus critical-code-reviewer + ponytail-review pass on the final diff:
- assertConfiguredEntrypoints carried finishInstall's old docblock
  ("Apply statusline config, then print completion message") from
  before this function was inserted between comment and callee.
  finishInstall already has its own accurate #4249 comment, so the
  stale docblock is removed rather than moved.
- checked: number on ConfiguredEntrypointValidationResult and
  error.configuredEntrypointValidation on the thrown error: the first
  had zero consumers anywhere in the repo, including its own defining
  file, and is removed. The second matches an existing repo
  convention (bin/install.js's installerMigrationRollbackFailures,
  #4249 predates this PR) of attaching structured diagnostic context
  to a re-thrown Error even before a consumer exists, so it's kept.
- finishInstall's own assertConfiguredEntrypoints call is a redundant
  backstop on the real production path (installAllRuntimes's aggregate
  call already validates the superset first), but its comment read as
  though this call alone provided the before-the-write guarantee.
  Clarified rather than removed — it's the only gate for a caller that
  invokes finishInstall directly.

* chore(#4249): split the manifest-driven rollback engine out into #4544

Issue #4154 asked the installer to consume a validation failure "through
the existing rollback mechanism, without a second transaction mechanism".
The manifest-driven rollback widening added during review (capture every
path the prior gsd-file-manifest.json claims, restore those bytes, remove
what only the failed install introduced) is that second mechanism on a
plain reading. It is a real fix for a #3245-era gap, but an independent
one, so it moves to its own bug report and PR.

Removed here:
- bin/install.js: the pre-install managed-file capture block and
  restoreManagedFileSnapshot, plus its call sites in
  _codexPreConfigRollback and restoreCodexSnapshot (99 lines).
- tests/configured-entrypoint-validation.test.cjs: the five tests that
  exercise the manifest engine.
- CONTEXT.md and docs/how-to/update-gsd.md: the sentences describing the
  widened restore. update-gsd.md again documents the #3245 surfaces only.

Kept, because it is #4154's own scope:
- the entrypoint-validation gate itself;
- Codex's install() result binding rollbackInstallerMigrations to
  restoreCodexSnapshot (config.toml, hooks.json, skills/gsd-*,
  agents/gsd-*, gsd-core/VERSION);
- the !isMinimalMode gate removal on that snapshot. Binding the closure
  to the result made it reachable for a core/--minimal install, where its
  pass-2 sweeps delete every gsd-* skill dir and agent file the snapshot
  does not claim; an empty minimal-mode snapshot therefore deleted the
  whole surface with nothing to restore.

The surviving aggregate-failure test now asserts on config.toml, a
surface the #3245 snapshot owns, instead of gsd-core/CHANGELOG.md, which
only the manifest engine restored.

Refs #4544

* test(#4249): cover configured entrypoints through the packed install path

#4154's scope lists install smoke coverage alongside the installer gate —
"assert representative configured entrypoints resolve for supported runtime
profiles". The gate itself (assertConfiguredEntrypoints /
validateConfiguredEntrypoints) is unit-covered by in-process install() calls;
nothing proved the property survives npm pack -> npm install -g -> install.js.

Add Cycle 4 to runSmoke. For each of claude and codex — the two distinct
config surfaces GSD writes launch paths into (settings.json, and hooks.json +
config.toml) — run the tarball-installed installer into a throwaway HOME, then
re-read that runtime's own written config and return the new
ENTRYPOINT_UNRESOLVED code when a script path it names does not resolve to a
file. install-smoke.yml already asserts .code == "ok" on the CLI, so the check
becomes a release gate on every matrix host without workflow changes.

The scan re-derives paths from the written config instead of reusing the
installer's own entrypoint list, and test I shows why that matters: a
registration the installer never touched during a run is invisible to the
in-process gate, so the install exits 0 and only reading the config back off
disk catches the dangling launch path.

* ci(#4249): pack a publish-shaped tarball in the install smoke lane

`npm pack` runs prepack/prepare (build:lib); only prepublishOnly runs
build:hooks. hooks/dist is gitignored, so the tarball install-smoke.yml packs
after `npm ci` carries no hook scripts at all — the lane has been smoking a
package that differs from the published one in exactly the artifacts the
lifecycle smoke is supposed to launch.

That went unnoticed because the lane's init runs `--local`, which registers no
statusline and therefore registers no hook whose target is missing. A
`--global` install on the same tarball exits 1 on #4249's own gate
(`gsd-statusline.js (missing)`), which is what the new configured-entrypoint
cycle performs, so without this step the cycle would report INIT_FAILED
instead of checking anything.

Build hooks before packing so the smoked tarball matches prepublishOnly. The
CLI now reports 16 configured entrypoints for claude and 1 for codex instead
of zero.

* fix(#4249): scope Codex's full snapshot restore to entrypoint failures

Binding Codex's result to `restoreCodexSnapshot` made ANY finalize-stage
exception un-install a Codex install that had already succeeded and already
printed its own "Done!" summary — `rollbackFinalizedInstallerMigrations` wraps
the whole `finalize()` body, not just the aggregate `assertConfiguredEntrypoints`
call.

Nothing documents that. `docs/installer-migrations.md#phase-4-installupdate-integration`
scopes finalize-stage rollback to installer *migrations* ("the executor uses the
journal to restore modified paths"), and this PR's own operator-facing paragraph
in `docs/how-to/update-gsd.md` scopes the Codex config.toml/hooks.json/skills/
agents/VERSION revert to entrypoint-validation failures specifically ("If a
script is missing, unreadable, ... For Codex, this reverts ..."). The wide
behaviour is also incoherent as a transaction abort: the same doc says Cursor,
Windsurf, Kimi and Cline keep the config they wrote inside install().

Concretely: `installAllRuntimes(['codex', 'kilo'])` where Kilo's finishInstall
hits EACCES writing kilo.json rolled Codex's config.toml back to its pre-install
bytes — on an update, silently downgrading a working Codex install to the
previous version while the user had just been told it was Done.

Select the rollback by error kind instead. `assertConfiguredEntrypoints` already
tags its error with `configuredEntrypointValidation`, so the full snapshot
restore runs for that error (and anything downstream of it, including
finishInstall's per-runtime backstop) and the installer-migrations-only closure
runs for everything else. The codex result now also exposes that narrow closure
as `rollbackInstallerMigrationsOnly`; `rollbackInstallerMigrations` keeps meaning
the full restore, so the direct-call contract asserted by
tests/codex-config.test.cjs is unchanged.

Adds a regression test that installs codex+kilo together, injects EACCES on the
Kilo permission write by monkeypatching node:fs (restored in a finally — never
chmod 0o000, which root bypasses in CI), and asserts Codex's config.toml keeps
the bytes the successful install wrote. Verified red against the pre-fix
unconditional path.

Cline cannot host this test: its plan is writesSharedSettings:false +
finishPermissionWriter:null, so its finishInstall performs no write and has no
non-entrypoint failure path. Kilo's configureKiloPermissions runs unconditionally
(unlike OpenCode's, it is not GSD_TEST_MODE-gated) and ends in an unguarded
fs.writeFileSync.

* docs(#4249): sync CONTEXT.md's rollback description with the round-6 narrowing

CONTEXT.md still described Codex's rollback as an unconditional bind
to restoreCodexSnapshot after ff13adc00 scoped it to entrypoint-
validation failures via rollbackInstallerMigrationsOnly and the
configuredEntrypointValidation error tag. Caught during the round-6
PR body pass.

* fix(#4249): stop rollbackInstallerMigrations meaning its own opposite

Codex's install() result bound `rollbackInstallerMigrations` to
restoreCodexSnapshot (the FULL pre-install snapshot restore) and put the
actual installer-migrations-only closure behind
`rollbackInstallerMigrationsOnly` — so for one runtime the unsuffixed name
meant the opposite of what it says, and CONTEXT.md had to concede as much
in prose. Invert it: `rollbackInstallerMigrations` is the narrow closure
for every runtime, matching both its name and the meaning it already has
on next, and the snapshot restore gets its own Codex-only field,
`rollbackPreInstallSnapshot`. The selection in
rollbackFinalizedInstallerMigrations collapses to one line and no longer
needs a fallback chain.

Also in this commit, all against the same rollback path:

- Correct the rollbackFinalizedInstallerMigrations comment. It read as if
  the round-6 narrowing prevented any sibling-triggered revert of a Codex
  install the user has already seen "Done!" for. It does not, and is not
  meant to: `wide` is true for ANY entrypoint-validation error from ANY
  runtime, because the aggregate gate is all-or-nothing — an invalid Cline
  entrypoint reverts Codex's snapshot, which
  tests/configured-entrypoint-validation.test.cjs's 'an aggregate
  entrypoint validation failure rolls the Codex install back (#4249)'
  asserts directly. The discriminator is the error's KIND, not which
  runtime owns the failing path. Comment and CONTEXT.md now say that.

- Name the runtime in the "Configured entrypoint validation failed" error.
  ConfiguredEntrypointInvalid already carries `runtime`; the message threw
  it away, leaving an operator of a multi-runtime install unable to tell
  whose entrypoint broke — which matters precisely because the failure can
  revert a runtime that was itself fine.

- Set `configuredEntrypoints: []` explicitly on the copilot-instructions
  early return. Every other branch states the key; this one relied on
  installAllRuntimes' `(result.configuredEntrypoints || [])` defence.
  `[]` is correct, not a workaround: every Copilot hook is an inline
  printf one-liner (GSD_COPILOT_*_HOOK_BASH/PWSH), so there is no
  GSD-managed script or interpreter to resolve.

No behaviour change beyond the error-message text.

* docs(#4249): narrow the smoke scan's config-surface claim to what it checks

RUNTIME_CONFIG_FILES claimed every GSD-managed executable a runtime is
told to launch is registered in one of settings.json / hooks.json /
config.toml, and that nothing else in a config dir is runtime
configuration. Both halves are false as stated. Cline registers its hook
at .clinerules/hooks/PreToolUse — a subdirectory, and not one of those
names (writeClineArtifacts, src/runtime-hooks-surface.cts). Kimi's native
[[hooks]] config.toml lives under resolveKimiHooksTomlDir() (~/.kimi),
a directory separate from Kimi's own GSD configDir — the same gap
installer-migration 007 already documents as structurally unreachable.

The scan is in fact correct for what it runs against: entrypointRuntimes
defaults to claude + codex, whose launch paths do all live in those three
top-level files. Restate the docstring at that scope, name the two known
out-of-scope surfaces, and warn that adding either runtime to
entrypointRuntimes without teaching scanConfiguredEntrypoints about its
surface yields a scan that finds zero entrypoints and proves nothing.
The entrypointRuntimes default comment carried the same overgeneralization
("every other runtime reuses one of them") and is corrected with it.

Documentation only; no code change.

* fix(#4249): complete configuredEntrypoints/rollback shape on unparseable settings.local.json

An internal adversarial review (agy/gemini-3.8-flash-medium, round 8) found
that install()'s settings-json early return for an unparseable
settings.local.json omitted configuredEntrypoints and
rollbackInstallerMigrations from its result, unlike every other branch.
rollbackFinalizedInstallerMigrations reads result.rollbackInstallerMigrations
unconditionally, so this branch silently dropped its own installer-migration
rollback on a later finalize-stage failure.

Completed the return shape: configuredEntrypoints: [] (matching Copilot's
equally-early no-entrypoints-yet return) and rollbackInstallerMigrations
(already in closure scope). Red-then-green regression test added.

* test(#4249): ensure hooks/dist before packing in release-tarball-smoke.install.test.cjs

Same internal adversarial review (round 8): this suite's before() packed the
tarball directly, without the ensureHooksDist() guard every sibling
install-test suite (install.test.cjs, install-minimal-hooks.test.cjs,
mcp-catalog-parity.install.test.cjs) already uses. On a clean tree, or run
in isolation ahead of a suite that builds hooks/dist itself, this suite's
pack would ship a tarball with no hook scripts and fail closed on
SMOKE.INIT_FAILED instead of testing anything.

* fix(#4249): refresh stale test-timings weight for the codex-config split

next's own consolidation split (#4139/#4540) moved tests/codex-config.test.cjs's
heavy install()-pipeline blocks into tests/codex-config-hooks.test.cjs, but the
CI shard packer's weight table (tests/test-timings.json) was never updated:
codex-config.test.cjs still carried its pre-split weight (127783ms, ~18x the
suite mean), and codex-config-hooks.test.cjs — which now holds the #3245 block
this PR extends with its own #4249 install()-pipeline test — had no entry at
all, so the packer would silently underestimate it at the table's median
weight (roughly a 9x underestimate against its real cost).

trek-e's most recent review flagged a Windows shard timeout in-flight on
codex-config.test.cjs, plausibly aggravated by this PR's own addition to that
file before the rebase moved it. Re-measured both files locally (node --test
--test-reporter=tap, max of 3 runs, matching the table's own max-across-streams
methodology) and patched just these two entries — not a full regeneration,
which would need real multi-lane CI data this session doesn't have access to.

* fix(#4249): register configured-entrypoint-validation tests in the conformance-tier lists

next's platform-conformance-tier classifier (#4591/#4598) landed after this
branch's last rebase, so tests/configured-entrypoint-validation.test.cjs and
tests/codex-config-hooks.test.cjs were never classified, failing lint:ci's
gen-platform-conformance-tier --check and both the Linux and macOS conformance
suites.

* fix(#4249): drop codex-config.test.cjs from the #4733 pinned isolated-set expectation

next's #4733 (landed after this branch's last rebase) replaced the static
ISOLATED_HEAVY_FILES set with a threshold derived live from
tests/test-timings.json, and pins the current derived result in
EXPECTED_ISOLATED_UNIT_FILES for regression coverage. That pinned list still
named codex-config.test.cjs, whose own weight this PR already dropped from
127783ms to 189ms (after splitting its heavy install()-pipeline blocks into
codex-config-hooks.test.cjs) — well under #4733's derived 120000ms bar. The
live-computed set correctly no longer includes it; the pinned expectation is
updated to match.

* fix(#4249): name the rollback consequence in the entrypoint-validation error, and prove Cline's file survives it

trek-e's review flagged two Major gaps: the thrown error read identically
regardless of which of three real outcomes a runtime hit (nothing
persisted / snapshot reverted / config left broken on disk), and no test
proved the disclosed "left on disk, unreverted" case for Cursor/Windsurf/
Kimi/Cline — only Codex's revert path was ever asserted.

assertConfiguredEntrypoints now tags each invalid entry with its actual
consequence, mirrored from docs/how-to/update-gsd.md's existing
rollback-matrix disclosure. A new test drives the same aggregate failure
through Cline (whose own entrypoint is the one that fails) and asserts
its hook file is still on disk afterward.

* fix(#4249): close 4 gaps antigravity's adversarial review found in the entrypoint-validation PR

One review pass (gemini-3.8-flash-high via the antigravity review lane)
against this PR's full diff against next, findings independently verified
against source before fixing:

- Copilot's install() return object was the only one of 6 runtime branches
  missing rollbackInstallerMigrations — reachable now that this PR's own
  aggregate gate runs rollback across every result on any runtime's
  entrypoint failure, not just Copilot's own.
- buildHookCommand's unresolved-bash early return skipped track() entirely,
  so a win32 install with no Git Bash silently produced an unregistered
  .sh hook instead of the 'unresolved-interpreter' validation failure
  configuredEntrypointsForHook's own comment said it would.
- release-tarball-smoke.cjs reported a Cycle 4 install failure under
  SMOKE.INIT_FAILED (Cycle 1's code) instead of the already-existing
  SMOKE.INSTALL_FAILED.
- SCRIPT_PATH_RE excluded whitespace to avoid swallowing a shell command's
  trailing args, which also truncated any configDir containing a space
  (e.g. a real "/Users/John Doe/.claude"), silently zeroing the scan.
  Anchored the match on the already-known configDir prefix instead of a
  generic absolute-path guess: removes the ambiguity outright rather than
  patching the character class, and stays a raw-text scan on purpose (it
  catches a writer that emits a path without registering it — a
  JSON.parse of the expected schema would miss exactly that case).

One suggested finding (test-timings.json "missing" the new test file) was
verified false — that table only holds measured CI timings, populated
after a file's first real run — and one Ponytail suggestion (a
JSON.stringify dedup key) was rejected as it would reintroduce a real, if
narrow, key-collision risk for no benefit.

* fix(#4249): fix fork CI red from a stale changeset pr field and an unquoted docs/ comment

changeset-lint requires pr: to match the PR it runs on (16 on the fork,
not the eventual upstream number) — rehearsal-branch convention already
established earlier in this PR's history.

lint-docs-guard-registration's quote-pairing heuristic doesn't require the
docs/ path itself to be quoted — it flags a file once ANY quote-delimited
span containing "docs/" appears anywhere in it, alongside any real fs read
call. A comment ending "...update-gsd.md's rollback-matrix paragraph"
supplied the closing quote character (the possessive apostrophe) the
heuristic paired with an unrelated single-quoted string earlier in the
file. Reworded to avoid the unquoted apostrophe next to the path.

* chore(#4249): point the changeset pr field back at the upstream PR

Fork rehearsal (PR #16) is green; the real target for this changeset is
upstream PR #4249.

---------

Co-authored-by: Test <test@test.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-16 04:23:53 -04:00
Tom Boucher
740ba0d8a3 fix(#4628): expose DAG-ready plans and restrict dispatch to them (#4781)
Emitted-Drift-Ack-Growth: execute-phase.md — #4628 consumer wiring: ready_plans parse pointer, not-ready named skip, and waiting condition 2b reference to the ready-wave-gate step file

Co-authored-by: sim <sim@local>
2026-09-16 02:38:43 -04:00
0xdhx
25d1cb916f fix(#4721): give worktree cleanup-wave's merge its own timeout, report merge_timed_out, and restore the index a killed merge leaves staged (#4766)
* fix(#4721): give cleanup-wave's merge its own timeout, report merge_timed_out, and restore the index a killed merge leaves staged

`worktree cleanup-wave` ran `git merge --no-ff` under the module-wide
DEFAULT_GIT_TIMEOUT_MS (10 s) that is sized for plumbing calls. The merge is
the one call in the wave that runs user hooks, so a repo whose
pre-merge-commit hook is a test-suite gate lost every code-bearing executor
merge. Three things went wrong at once, each fixed here:

1. Budget. The merge now passes an explicit timeout —
   DEFAULT_MERGE_TIMEOUT_MS (10 min), overridable via deps.mergeTimeoutMs.
   Every other git call in the wave keeps the module default; the shared
   constant is untouched, because every other caller is exactly what its
   10 s comment describes.

2. Reason. A merge that does time out blocks on `merge_timed_out`, and its
   stderr names the budget and says the hook may still be running, instead
   of `merge_failed` carrying whatever the hook had printed before git was
   killed — which made a healthy executor branch look broken.

3. Residue. A merge killed during its hook has already staged the merged
   tree into the primary's index but never wrote MERGE_HEAD, so
   `git merge --abort` finds nothing and repoRootStillMidMerge (#2852)
   reads the primary as clean while the executor's whole diff sits staged
   against the old HEAD; a `git commit` from that state squashes the
   executor's history into one parent. After any failed merge the wave now
   reads `git diff --cached --name-only`; anything staged is the merge's
   own (git refuses to start a merge when the index differs from HEAD), so
   it runs `git reset --merge` — restores exactly those paths, keeps
   unrelated unstaged edits — and re-reads. Restored paths are reported as
   WAVE_CLEANUP_WARNING.MERGE_RESIDUE_RESTORED and the wave continues; a
   still-dirty or unreadable index reports MERGE_RESIDUE_LEFT_STAGED and
   halts the remaining entries, the same repo-level carve-out an
   unfinished merge takes.

Tests: five mock-driven rows (budget wiring incl. the deps override, the
timeout classification with restore, the no-reset control for an ordinary
refused merge, an unrestorable residue halting the wave, an unverifiable
index failing closed) plus a real-git row that runs a sleeping
pre-merge-commit hook under a 1 s budget and asserts HEAD unmoved, index
and worktree clean, the executor branch intact — with the same fixture
merging cleanly under the default budget as its negative control. Two
existing #2852 rows gain a handler for the new post-failure index read.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TbbqrGJMuiuLftAMVLayb9

* docs(#4721): add Fixed changeset

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TbbqrGJMuiuLftAMVLayb9

* test(#4721): release the real-git fixtures with t.after, not try/finally

The two real-git rows cleaned up their scratch repo in a `finally` block;
this file's own convention for fixture teardown is the test context's
`t.after(() => cleanup(dir))`, and the house PR ruleset flags `finally` in a
test body. Behaviour-neutral.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TbbqrGJMuiuLftAMVLayb9

* fix(#4721): gate the residue restore on the timeout, re-apply a merge autostash, and correct the hook census

Three findings from the pre-file adversarial review of the previous commit,
each driven on real git before changing code:

1. A merge git REFUSED ("your local changes … would be overwritten") also
   leaves no MERGE_HEAD — and that refusal is exactly what a pre-existing
   dirty primary index earns. The residue restore read that index as the
   merge's own and `reset --merge`d the operator's staged work away
   (driven: a staged edit to an unrelated file was discarded and reported
   as "restored"). The restore now runs ONLY when the merge timed out; a
   refusal is an immediate exit, never a timeout, so on that path nothing
   is read or reset.

2. `merge.autoStash=true` lets a merge start on a dirty index by parking
   the work in MERGE_AUTOSTASH, which a killed merge never re-applies.
   `git reset --merge` moves that stash into the stash list; the wave now
   runs `git stash pop --index` afterwards (the outcome `merge --abort`
   gives an autostashed merge), and reports
   WAVE_CLEANUP_WARNING.MERGE_AUTOSTASH_UNRESTORED (path null) when the
   pop fails or the autostash state could not be read — the work stays in
   the stash, the index is clean, the wave continues. Because of this the
   reset runs on a timed-out merge even when the index reads clean.

3. The merge is not the only hook-running git call in the module:
   `worktree add` runs post-checkout and every ref update runs
   reference-transaction. It is the only call that runs the commit-family
   hooks, which is what the budget is for. Comments and docs say so now.

Tests: the "ordinary merge_failed" control becomes the regression row for
finding 1 (strict mock — a `diff --cached` or `reset --merge` on a refused
merge throws), plus a mock row for the autostash pop (dirty and clean
index, pop success and failure), and two real-git rows: a refused merge
over pre-existing staged work leaves it byte-identical, and a killed merge
under merge.autoStash restores the executor residue AND puts the
operator's staged work back. The real-git hook now sleeps 4 s against a
1.5 s budget for margin on slow runners. The two #2852 handlers added
earlier are removed — the residue read no longer fires on their path.
Negative control: 4 of the 10 #4721 rows fail on the previous commit.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TbbqrGJMuiuLftAMVLayb9

* fix(#4721): key the residue restore on a killed merge, and re-read the index after a failed autostash pop

Two more findings from the continuation review, both driven:

1. An externally delivered SIGTERM leaves the same staged/no-MERGE_HEAD
   state as the timeout, and the seam reports it as exitCode null + signal
   with timedOut false — so the timeout-only gate skipped the restore on a
   state it was written for. The gate is now "killed": timedOut, or a null
   exit code with a signal. A refused merge still exits with a code and is
   still never touched. The reason stays merge_failed for a signal kill.

2. A failed `git stash pop --index` keeps the stash entry but can leave
   conflict entries (UU) and partially applied paths, after which the next
   merge fails on "you have unmerged files"; the code returned halt:false
   on the strength of the pre-pop recheck. The index is now re-read after a
   failed pop and a dirty result halts the wave as merge_residue_left_staged
   alongside the merge_autostash_unrestored warning.

Also driven and now documented rather than changed: a kill that lands once
MERGE_HEAD exists (inside commit-msg) is the ordinary #2852 abort path —
`git merge --abort` restores the tree and re-applies an autostash itself,
unstaged, as git does for any aborted autostashed merge.

Tests: the pop-failure mock row now asserts the post-pop re-read and gains
a conflict-leftover variant that halts; a signal-kill mock row; a real-git
row with the sleeping hook moved to commit-msg (timed out, no residue
warnings, MERGE_HEAD cleared, primary clean). 414 pass.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TbbqrGJMuiuLftAMVLayb9

* fix(#4721): key the kill gate on the seam's signal, not on a null exit code

The shell projection seam normalizes a signal death to exitCode 1 and
carries the signal alongside (`_spawnResult`: `result.status ?? 1`), so the
previous `exitCode === null && signal` gate could never fire in production
and the unit row that covered it modelled a shape the seam does not emit
(caught in the round-3 review). The gate is now `timedOut || signal`; a
refused merge exits with a code and no signal. The mock row uses the real
shape, and a mocked spawnSync signal death driven through the compiled seam
reaches `reset --merge` and reports the residue restored.

Also: three comments that still said "at its budget" / "runs user hooks" /
"the index is clean", and the CLI-TOOLS sentence that reserved
`merge_failed` for refusals and conflicts, now name the signal case.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TbbqrGJMuiuLftAMVLayb9

* chore(#4721): set changeset fragment pr to 4766

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-15 22:28:09 -04:00
Tom Boucher
0d6bf19bf1 fix(#4600): explicit --converge overrides the convergence feature gate (#4771)
* test(#4600): pin explicit-flag-overrides-gate precedence

* fix(#4600): explicit --converge overrides the convergence feature gate

PLAN_STRATEGY=converge is set only by an explicit --converge/--cross-ai,
so gating it on workflow.plan_review_convergence made an explicit
operator flag lose to a config default and stop the run with a
question-shaped success. The config remains the default for non-flag
invocation; the flag now wins, and the step says so instead of
gate-and-exit.

* test(#4600): pin the precedence contract sentences as written

* fix(#4600): keep the precedence sentence on one line

The pinned contract phrase wrapped across a line break, so the
writer-contract assertion could not match it.

* fix(#4600): document the flag-overrides-gate precedence on user surfaces

commands/gsd/autonomous.md and docs/COMMANDS.md still said --converge
requires workflow.plan_review_convergence=true; both now state the
override. Changeset typed Changed with the docs update alongside.

* docs(#4600): backfill changeset PR number

* fix(#4600): restore the convergence gate mention in user surfaces

* test(#4600): pin the dispatched convergence run against the config gate

* fix(#4600): override the convergence gate on the dispatched run

Emitted-Drift-Ack-Growth: autonomous.md — #4600: the converge dispatch appends --override-gate inside the PLAN_STRATEGY conditional, and the precedence sentences replace the stale fail-fast instruction
Emitted-Drift-Ack-Growth: plan-review-convergence.md — #4600: config gate 1.5 honors an explicit --override-gate dispatch (token-anchored) while the standalone veto and config-get default are preserved

---------

Co-authored-by: sim <sim@local>
2026-09-15 15:53:42 -04:00
Tom Boucher
779f67cb11 fix(#4378): mint collision-free SEED-YYMMDD-xxx seed ids instead of a shared count (#4754)
* test(#4378): regression tests for collision-free seed ids

* fix(#4378): mint collision-free SEED-YYMMDD-xxx ids, not a shared count

plant-seed derived the next seed id from 'ls .planning/seeds/SEED-*.md | wc -l'.
.planning/seeds/ is shared but each worktree only sees what has merged, so two
workstreams planting before either merges computed the same id and git merged
both files silently.

The id is now the local date plus a 3-char random base36 suffix -- the shape
.planning/quick/ already uses -- computed from knowledge one worktree has alone,
with a same-day regen guard. deriveSeedIdentity learns the new canonical grammar
alongside legacy SEED-NNN (whose parsing never changes), the --enrich parser and
the filename-prefix fallback keep the full new-format id, and the docs that
state the filename shape move to it.

The prefix fallback previously truncated any non-pure-numeric id at
'SEED-<digits>' -- the same one-id-two-answers ambiguity the issue reports,
reproduced one level down.

* fix(#4378): harden seed id generation per adversarial review

- parse-idea: anchor the --enrich extractor to the flag and capture the
  complete id, uppercase-tolerant; a leftmost 'SEED-[0-9]+' truncated an
  uppercase or malformed suffix to its date and enriched an arbitrary
  same-day seed via head -1. Ambiguous and unmatched targets now fail
  closed instead.
- generate-seed-id: tolerate the expected SIGPIPE under pipefail, abort
  loudly when the suffix cannot be drawn (an empty suffix would collapse
  every seed's id to the bare date), and run the same-day regen guard as
  a find existence test (the 'ls <glob>' shape trips the #3409 drift
  guard and degenerates under a stray nullglob).
- deriveSeedIdentity: document the theoretical legacy/new grammar
  ambiguity (6-digit counter + 3-char base36 slug, no frontmatter).
- changeset: state the residual same-day collision bound instead of
  implying zero.

Emitted-Drift-Ack-Growth: plant-seed.md — the counting step became hardened date+random generation with explicit failure modes; growth is the failure handling, not duplicated logic

* fix(#4378): address standards and spec review findings

- tests: move the allow-test-rule marker to its suppression site (the
  file-header placement was inert per CONTRIBUTING site-scoping); add
  width-boundary coverage (5/7-digit dates, 2/4-char suffixes pin the
  documented branch behavior); add a writer-to-reader parity property
  that parses the mint widths out of the shipped workflow so the two
  grammar owners cannot drift; cover uppercase ids end-to-end in the
  reader.
- plant-seed.md: draw/retry restructured as one loop with a loud
  terminal failure; SEED_SUFX renamed SEED_SUFFIX; regen guard drops
  the redundant head -1; the ambiguity error no longer advises an
  impossible 'complete id' for duplicate legacy ids.
- commands.cts: refresh the cmdListSeeds comment still describing
  SEED-NNN as the only canonical form.
- changeset: drop the audit claim the spec axis showed to be an
  overstatement (audit's id display is filename-derived, pre-existing).
- remove a stray untracked artifact file swept into the tree.

* test(#4378): correct boundary expectations to the module's real branch behavior

The first matrix run on the boundary tests caught my hand-trace of the
regex branches, not a module defect: the slug regex's alternation
backtracks to the legacy branch whenever the canonical branch cannot
complete (so the slug is the remainder after the legacy numeric
prefix), and the 7-digit case fails the canonical branch at its 7th
digit before the dash. Pin the verified values.

* docs(#4378): backfill changeset PR number

* fix(#4378): audit seed identity uses the canonical grammar

Review of this PR found the audit surface publishing a fused filename
stem (SEED-081-region for SEED-081-region.md) where list-seeds reports
the canonical id -- one id, two answers across surfaces, the same
ambiguity class the issue files. scanSeeds now derives identity through
the SAME deriveSeedIdentity the list-seeds gate uses (frontmatter id,
then filename id-prefix, then stem), and audit-open acknowledge
resolves --seed-id by scanning for the derived identity, falling back
to the literal stem so callers scripted against pre-canonical output
keep working. Roll-in per the fix-inline rule: found during this PR's
review, same seed-identity seam.

RED probe: pre-fix audit published seed_id SEED-081-region-becomes /
slug 081-region-becomes for a legacy seeded file; post-fix SEED-081 /
region-becomes, matching list-seeds.

* test(#4378): probe timeout uses the class norm after windows-lane timeout

The windows conformance shard failed its bounded sh -c probes at the
local 5000ms bound (cold sh.exe spawn under shard load) while the
identical code passed this PR's two earlier windows waves. The probe
now uses PROBE_TIMEOUT_MS from the class-norm module instead of a local
override, per the helpers/timeouts.cjs convention.

---------

Co-authored-by: sim <sim@local>
2026-09-15 11:41:29 -04:00
BeeHiggs
0967358b8b enhance(#3638): render bracket phase IDs on progress, stats, manager and statusline surfaces (epic #612 PR-5) (#4111)
* enhance(#3638): render bracket IDs on display surfaces

Gate progress, stats, manager, and statusline projections on the bracket convention; validate phase_id_convention and single-source the convention card.

Forward note: the uat.cts bracket co-change remains deliberately deferred to its owning slice.

* chore(#3638): point the changeset at PR #4111

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(#3638): close bracket display review gaps

* docs(#3638): register phase display modules

* chore(#3638): re-trigger CI after macOS shard SIGTERM

`full test (macos-latest, 24, shard 3/3)` failed on 20ce98cd1 in
`tests/lint-compiled-artifact-sync.test.cjs` — the spawned
`scripts/lint-compiled-artifact-sync.cjs` was killed at 60024ms
(`exited null (signal SIGTERM)`, stdout and stderr both empty), 24ms past
the test's own `TSC_COMPILE_TIMEOUT_MS`. That is the failure mode the
constant's comment already documents ("under CI shard load that compile
can exceed the budget, dying to a SIGTERM with empty piped stdout").

No content change; this empty commit exists only to re-run the matrix,
since re-running a job needs write access on the upstream repository.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-15 04:47:47 -04:00
Michel Moreira
2f0e99f9e0 fix(#4377): opt in to project-relative includes for local installs (#4425)
* enhance(#4377): opt-in project-relative includes for local installs

A local install wrote the includes that point at GSD's own files as absolute
paths — whatever the installer resolved at install time. For one checkout
that is invisible. Across git worktrees it is not: each worktree gets its own
.claude/ copy, but all of them point back at the checkout that ran the
installer, so a worktree runs its own gsd-tools.cjs while reading workflow
prose from a different checkout. Update that one checkout and every other
worktree is running new instructions against an old engine, with nothing to
stage the update with.

--relative-includes (or GSD_RELATIVE_INCLUDES=1) makes a local install emit
`@.claude/gsd-core/...`. Opt-in, and staying opt-in: absolute works for a
single checkout, which is most people, and flipping the default would change
every existing local install to solve a problem those users do not have.

The prefix is the runtime's own localConfigDir descriptor value, never a
literal — the same value resolveScope joins onto the cwd to produce the
install target, and the same one the rewrite engine already uses for its
./.claude/ -> ./<dir>/ substitutions. Copilot and Antigravity have shipped
this shape for local installs since they were added, with hardcoded .github/
and .agents/; this is that behavior, derived rather than written down.

Six seams compute a path prefix and all six had to be threaded, which is why
the opt-in travels through the environment the way --portable-hooks already
does: one variable they all read cannot fall out of sync the way six
signatures can.

The launcher shim deliberately keeps its ABSOLUTE fallbacks. It probes
gsd-tools through ${CLAUDE_CONFIG_DIR:-$HOME/.claude} and one such default
per runtime; those are shell word expansions, not includes, and a relative
value there resolves against the shell's cwd rather than the project.
Trading an include that points at the wrong checkout for a path that points
at nothing is not a fix. All three rewrite paths mask ${VAR:-default} spans
before substituting and restore them after, and the mask only runs when the
prefix is relative, so an absolute install is byte-for-byte unchanged.

Every unexpressible case falls back to absolute: no opt-in, a global install,
a missing dir name, the configHome.kind === 'none' sentinel, an absolute
descriptor value, or one climbing out of the project with '..'.

* chore(#4377): add changeset for project-relative local includes

* fix(#4377): compare against POSIX-normalized roots in the install e2e arms

The emitted prefix is POSIX-normalized by design — it is substituted into
markdown @-references, which use forward slashes universally, so a backslash
would leak into shipped content (#1615). The e2e arms compared against the
raw temp root, which on Windows is `D:\a\...` and appears in no emitted file.

That reddened the control arm on the windows shard, and it was worse than a
red: the negative arm ("nothing references the checkout") was passing
VACUOUSLY there, because a string that cannot occur is trivially absent. Both
now go through the same normalization, so the Windows lane asserts what the
Linux lane does.

* fix(#4377): tolerate a resolved temp root, and make the e2e diff self-diagnosing

Two changes, one confirmed and one to stop guessing.

Confirmed: the emitted content carries the RESOLVED root, not the spelling
mkdtemp handed back. Reproduced on Linux with a symlinked install root —
236 emitted files carry the realpath, zero carry the link path. macOS has
this structurally, since /var is a symlink to /private/var. Comparisons now
go through both spellings, or the negative arms pass vacuously: "nothing
references the checkout" is trivially true when the string being searched
for cannot occur.

Not confirmed: the macOS shard reported ~every workflow file differing in
the "differ ONLY" arm while the five arms around it passed, and the
assertion printed a list of filenames — which says a difference exists
somewhere across 236 files and leaves the reader to guess which bytes. I
cannot reproduce that platform locally, and guessing turns one CI round-trip
into four. The assertion now reports the first divergence as text: the file,
the byte offset, and a bounded window of both sides.

* fix(#4377): strip the longest root spelling first in the install e2e diff

The macOS failure was my test corrupting its own comparison, not a product
defect. /var/folders/…/X is a SUBSTRING of /private/var/folders/…/X, so
stripping the unresolved spelling first matched inside the resolved one and
left the /private prefix glued to what followed:

  @/private/var/…/X/.claude/gsd-core/…  ->  @/private.claude/gsd-core/…

a string present in neither install, which is why all 236 files "differed".
Sorting the spellings longest-first consumes the whole occurrence, and the
short form then has nothing left to match. Proven in isolation on the exact
macOS shapes: short-first yields @/private.claude/…, longest-first yields
@.claude/….

The self-diagnosing assertion added in the previous commit is what found
this — it named the file, the byte offset, and printed both sides, so the
corrupted string was visible rather than inferred from a list of 236
filenames. Keeping it.

* fix(#4377): address review findings

* test(#4377): scan nested shell defaults without regex backtracking

* fix(#4377): close relative include review gaps

* fix(#4377): preserve root-target runtime includes

* fix(#4377): guard project-root relative includes

* test(#4377): normalize Cline fallback roots

* fix(#4377): persist relative include style

---------

Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-15 03:40:04 -04:00
Tom Boucher
5d4c98cde7 chore(#4729): guard the retired-runtime name, and finish the locale residue (#4753)
* chore(#4729): guard the retired-runtime name, and finish the locale residue

Phase 5 of 5 on epic #4709, and the phase that closes it. Two parts, one
concern: make the tree clean, and keep it clean. The guard is inert until the
tree is clean, and shipping the cleanup without the guard is the
one-bug-at-a-time pattern this epic exists to end.

WHY A GUARD, AND WHY LAST

Nothing in CI answered "does any shipped surface still present a retired
runtime as live?", and the two gates that look like they should cannot.
checkReviewerDocsParity is one-directional: it asserts the PRESENCE of every
declared reviewer flag and never the ABSENCE of a retired one, so in #4716 it
reported 0 violations while all four locale mirrors still documented --gemini
as a live reviewer flag, with usage examples. And
tests/gemini-runtime-removed.test.cjs is scoped by construction - its own
docblock limits it to the installer CLI contract and the runtime-name-policy
exports; it never reads docs/**, gsd-core/workflows/**, commands/** or
agents/**. Every extension to it during this epic was a hand-added assertion
for a surface somebody had already noticed.

A guard written earlier would have red-flagged the very references phases
1b-4b were removing, which is why it lands last.

PART A - THE RESIDUE, INCLUDING WORK I SHIPPED INCOMPLETE

Each site was judged against its ENGLISH counterpart, not on its own:

  README.{ja-JP,ko-KR,pt-BR,zh-CN}.md :9 :24 :46  English README.md has ZERO
                                                  occurrences -> substituted
                                                  "Antigravity CLI, Kimi CLI"
  how-to/execute-a-phase.md:88  x4 locales        fixed in #4728 -> substitute
  how-to/verify-and-ship.md:89  x4 locales        fixed in #4728 -> substitute
  FEATURES.md cross-AI CLI list                   :1419 no Gemini -> DELETE
  FEATURES.md REQ-MULTI-RT-01                     :1709 -> substitute
  FEATURES.md REQ-SKILLS-03                       :1952 -> rewrite
  FEATURES.md REQ-QUOTA-02                        :3256 deleted upstream -> delete
  VERSIONING.md:133                               stale manifest -> see below

The twelve README occurrences were an adversarial reviewer's BLOCKER, and the
reason they survived my own sweep is structural: root-level *.md was outside
the guard's scan set, so the repo's most-read runtime-advertising surface was
invisible to the guard meant to police it. :46 is a live installer-runtime
claim - it tells the reader the installer will offer a runtime that no longer
exists. Checked for the duplicate-name trap before substituting: neither
Antigravity nor Kimi appears anywhere in those four files.

Two of these are mine to own: I fixed the ENGLISH execute-a-phase.md and
verify-and-ship.md in #4728 and left all four mirrors behind. Unfinished work,
not a deferral.

Two more show why "substitute Gemini -> Antigravity" is the wrong default: in
the cross-AI list and REQ-QUOTA-02 English DELETES the name, because
Antigravity was already in the list or the classifier had dropped it.
Substituting would have duplicated a name - the identical trap
ARCHITECTURE.md:24 set in #4728, where English holds Kimi CLI in that slot.

VERSIONING.md:133 is a different and worse defect than translation lag. Under
"Manifest Version Sync" it listed gemini-extension.json as a version-synced
manifest. That file is ABSENT from the repo, and
scripts/sync-manifest-versions.cjs says so in its own comment - "#1928:
gemini-extension.json was removed with the gemini runtime ... it is no longer
a registered manifest" - while VERSIONED_MANIFESTS holds plugin.json,
marketplace.json and vscode/package.json. So the doc named a manifest that
does not exist AND omitted the one that replaced it. Both fixed, verified
against the owning code rather than inferred from the name. The replacement
bullet cites #1942, the issue that actually registered vscode/package.json,
matching the convention of its neighbours.

pt-BR/FEATURES.md is a 77-line stub genuinely lacking two sites, and ko-KR has
no REQ-QUOTA-02 line. Skipped and recorded, never invented.

PART B - THE GUARD

scripts/lint-retired-runtime-name.cjs, modelled on
scripts/lint-legacy-dir-name.cjs - the repo's own precedent for this problem
shape (forbid a retired token, allowlist frozen content, self-exempt via a
split literal, a REPO_ROOT test seam, lib/cli-exit.cjs, exit 0/1).

Case sensitivity IS the mechanism, not an accident. The naive guard - "the
string gemini must not appear" - is WRONG, not merely noisy: that string is
load-bearing across Antigravity's real on-disk contract. A case-sensitive,
standalone, capitalised name works because every legitimate reference is
spelled differently and therefore cannot match: lowercase config homes
(~/.gemini/antigravity, ~/.gemini/config, #3738), lowercase hyphenated model
ids (gemini-2.5-flash-lite), uppercase env vars (GEMINI_API_KEY), and
GEMINI.md. Table-driven, so the next retired runtime costs one row.

THE ALLOWLIST IS THE ENTIRE RISK SURFACE, so it is three tiers, not one. Two
rounds of isolated adversarial review reshaped it; both are recorded in
.gsd/bug/chore-4729-gemini-drift-guard/60-review.json.

ROUND 2 FOUND ONE ROOT CAUSE BEHIND TWO SEPARATE HOLES, and it was mine: both
Tier-1 rules treated the ABSENCE of a runtime word as a GRANT. A veto list can
never be complete, so "no runtime word found" silently exempted every phrasing
nobody had enumerated. Demonstrated: `The installer now offers Gemini 3.`,
`Supported agents include Gemini 3, Kimi, and Cursor.` and three more exited 0,
as did `Suportamos Gemini, no estilo padrao, como runtime de instalacao.` and
`Gemini 兼容,并且是受支持的运行时之一。`, both of which literally contain `runtime`
or `运行时`. The fix was to stop enumerating exceptions and invert the evidence
direction:

  Tier 1(a) - the hook DIALECT Antigravity inherits. Position is
  language-dependent and MEASURED: en Gemini-style/-compatible, ja Gemini
  スタイル, ko Gemini 스타일/호환, zh Gemini 风格 / 与 Gemini 兼容的, pt "no estilo
  Gemini" / "compatível com Gemini" where the qualifier PRECEDES the name. The
  marker must now form an ADJACENT COMPOUND with the name, not merely sit in a
  +/-24-character window - that window let `| Antigravity | Gemini-style hooks
  | Gemini support is live |` exit 0, one legitimate reference licensing a
  fresh live claim 21 characters later. The runtime-word veto is now
  LINE-GLOBAL. Ten real lines legitimately pair a dialect compound with a
  runtime word (`~/.gemini/antigravity-cli` in a table cell, "runtime files"
  in the same sentence); each is an explicit pin rather than a reason to
  loosen the veto for everyone. Measured: widening it surfaced exactly those
  ten and no others.

  Tier 1(b) - the provider/model axis. A version optionally followed by a
  qualifier, including full-width digits and CJK punctuation, AND positive
  model-axis evidence on the line, AND no runtime word. The positive
  requirement is the part that matters: all eight real model-axis lines in the
  repo name a model explicitly, so requiring it costs nothing on the real tree
  while flagging every laundering attempt. It is also the honest resolution of
  the agent/target tension below - rather than guess at an exhaustive veto
  list, stop treating an empty veto as evidence.

  Tier 2 - PINNED OCCURRENCES, now SPAN-SCOPED. A pin excuses only a match
  falling INSIDE an occurrence of its own snippet. Line-level containment let
  `Known provider menu update: Gemini CLI is once again a selectable GSD
  runtime.` and `Install target: Google (Gemini) - choose Gemini CLI as your
  GSD runtime.` both exit 0, because a short snippet elsewhere on the line
  pre-approved a brand-new claim. Span scoping makes short snippets safe:
  `Google (Gemini)` can only ever excuse the match inside those 15 characters.
  A LOAD-TIME validator now requires every pin to contain a retired name, and
  it immediately caught five of MY OWN pins whose snippets sat BESIDE the name
  rather than covering it - each would have shipped permanently inert and
  permanently reported stale. All pins were then reconciled in one pass.

  A pin is also marked used by PRESENCE on the line now, rather than only on
  the Tier-2 branch. Previously a pinned line that a general rule also matched
  never marked its pin used, producing a provably FALSE "no line matches
  pinned snippet" whose printed remedy told the maintainer to delete a pin
  that was still needed.

  Tier 3 - blanket trust, and a new occurrence inside it IS invisible.
  CHANGELOG.md and `.changeset/` - the rendered changelog and its source, one
  surface - plus six append-only directories. All 21 `.changeset/` hits were
  measured to be fragments DESCRIBING the retirement or a fix to it, 464 of
  them under archived/; a fragment can only describe what already shipped and
  is deleted at release, so pinning them would be friction with no signal. The
  cost is stated in the guard's own header rather than hidden.

THE SCAN SET IS NOW EVERY TRACKED *.md FILE (1165 read). The original prefix
list left `.github/`, `.changeset/`, `capabilities/`, `playbooks/` and
`references/` invisible - and `.changeset/*.md` renders into CHANGELOG.md, so a
live claim introduced there was invisible at BOTH ends.

The escape hatch must now carry a justification
(`gsd-allow-retired-runtime-name: <reason>`). A bare marker is rejected: it is
checked first, excuses the whole line, and the failure message advertises it,
so an unexplained one is indistinguishable from a silenced defect.

Plus an anti-vacuity floor counting files actually READ, not files listed - a
candidate count stays healthy-looking even if every read failed.

A FALSE NEGATIVE I INTRODUCED, AND CLOSED

The model-display escape began as a blanket /^ \d/ - "space then a digit" -
which also matched "Install for Gemini 2.5 CLI as a supported runtime.",
laundering a genuine stale-runtime claim through an attached version number.

That was the THIRD appearance of one failure shape in this epic: an exclusion
added to suppress false positives creating a false negative. #4716's sweep
excluded lines matching gemini-[0-9] to spare Google's model ids, and thereby
hid a stale review.models.gemini row whose example value was "gemini-2.5-pro"
ON THE SAME LINE. Round 2 then produced the FOURTH and FIFTH instances, which
is why the fix this time was to invert the rule's evidence direction rather
than to enumerate more exceptions.

The veto is word-anchored for Latin terms - unanchored, case-insensitive "CLI"
matched inside "client" and would have vetoed legitimate model lists - and raw
for CJK terms, where \b is ASCII-word-based and would never fire beside an
ideograph, so anchoring them would silently disable the veto in ja/ko/zh.
"agent" and "target" were deliberately left OUT: both occur throughout
ordinary prose ("AI coding agents (Claude Code, Codex, Gemini 2.5 Pro)"), so
vetoing on them would red correct content instead of catching runtime claims.
The reasoning is in the guard's comment, not just the omission - and Tier
1(b)'s positive-evidence requirement is what makes that omission safe, since
the rule no longer depends on the veto list being complete.

COVERAGE

tests/lint-retired-runtime-name.test.cjs drives the guard through its
GSD_LINT_RETIRED_RUNTIME_REPO_ROOT seam against fixture repos, mirroring
tests/lint-legacy-dir-name.test.cjs. A guard never observed failing is not a
guard, and this epic already shipped one that was vacuous for 2 of its 5
files, so properties are paired against BOTH failure modes - too broad
silently absorbs a future defect, too narrow reds on legitimate content. Floor
boundaries are covered at 149/150/151.

The round-2 reviewer's sharpest point was about that claim, and it was right:
the first matrix's pairing was "true of the properties chosen, not of the
predicate's actual surface" - not one of its twenty properties could see the
dialect adjacency hole, a non-adjacent runtime word, pin shadowing, or an
over-broad pin colliding with a new line. Every one of those is now a
committed regression using the reviewer's own attack line verbatim, and the
local fixture harness went from 14 cases to 35 (PASS=35 FAIL=0).

That harness earned a finding of its own. Its first run reported PASS=2
FAIL=12 with BOTH passes VACUOUS: `git add` has no -q flag on this build, so
nothing staged, every fixture hit the empty-walk error path, and the two
checks that assert an ABSENCE passed off that error path rather than off real
guard logic. A staging failure is now fatal and every absence-asserting check
first proves the walk ran and the expected violation was flagged. Later, one
case failed because its fixture supplied only one of a pinned file's two
approved lines, so the stale-pin check fired correctly - the expectation was
wrong, not the guard. Telling those two apart is the whole value of running a
matrix rather than reasoning about one.

On the two orthogonal reviews: the isolated adversarial pass executed a great
deal of code, across two rounds, against its own fixture repos. The security
pass did NOT - it self-discloses that it verified by reading only, because
node --test is hard-blocked here. Saying so plainly, because "two orthogonal
reviews" without that caveat overstates what the second one established. It
also raised, and I cleared by measurement, a concern that importing
escapeRegex from a gitignored build artifact would break lint:ci on an unbuilt
clone: six other tracked scripts already require that exact path, three of
them already in lint:ci, and .github/workflows/test.yml:192-193 runs
`npm run build:lib` immediately before it for exactly this reason.

Part A has no new test deliberately - those edits are covered by the guard
itself inside lint:ci, and a separate per-locale assertion would duplicate it
and then drift from it. The one exception is the root README case, which IS
pinned: that residue was invisible to the guard rather than merely unasserted,
so the fix is a scan-set change and needs its own regression test.

No mode-bit read-failure fixture was added on purpose: the benches run as
root, where chmod-based IO injection is vacuous, so such a test would assert
nothing.

The test's fixture helpers write throwaway docs/ paths, which trips
lint-docs-guard-registration's reader-name heuristic. Resolved the way that
lint documents - a header `// docs-guard-exempt:` marker plus a baseline entry
- because the fixtures only WRITE scratch data and never read shipped docs;
the baseline was re-confirmed, not merely extended, each time locale and
adversarial fixtures were added. scripts/lib/macos-conformance-tier.generated.cjs
regenerated through its own --write path, since a new test file changes the
count lint:generated-sync reads.

Fixes #4729

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4729): backfill changeset PR number (#4753)

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-14 20:50:26 -04:00
Tom Boucher
06845717fe feat(#4740): make the Loop Host Contract role partition normative and enforced (#4742)
* test(#4740): pin the per-step role-family partition

Failing-first coverage for the Loop Host Contract role partition. At this
commit crossCheckRoleFamilies does not exist, so the rows throw
"crossCheckRoleFamilies is not a function" -- the RED proof they bind to
behavior rather than restating it.

ADR-894 section 3 assigns roles per step but parenthesises the assignment as
"(illustrative roles)", and nothing enforced it. The only thing standing in the
way was a single deepEqual in this same file, which is editable prose.

Rows cover: each step's own family accepted; a strict subset accepted; a
foreign role rejected at every step; an unknown role rejected; an unknown step
failing CLOSED; capitalization not silently matched; every offending role
reported rather than only the first; and purity, because buildContract puts the
same array into the generated contract.

Two rows exist because an earlier cut of this suite was vacuous. The purity
fixture is deliberately UNSORTED -- an alphabetically-sorted fixture cannot
fail an in-place sort(), and the mutant was being killed by three unrelated
rows instead. A parity row asserts ROLE_FAMILY and ROLE_TO_AGENT cover the
exact same role-name domain, both directions: they are parallel constants over
one domain, so divergence is the generative-fix class CLAUDE.md names.

Every negative row asserts the offending ROLE NAME and the STEP NAME appear in
the message. A count-only assertion survives a mutant that reports the wrong
role, which the 80% Stryker gate would surface only after a full CI round-trip.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* feat(#4740): reject a cross-family agent-role declaration

Orchestration and execution are distinct functions of the loop and must not
drift into one another. That partition was real but unenforced: ADR-894
section 3 calls its own role assignment "illustrative", and the generator
accepted anything. Adding orchestrator to execute-phase.md's agent-roles line
compiled, --check passed once regenerated, and capability-validator.cjs then
began accepting into:"orchestrator" at every execute point.

ROLE_FAMILY maps every role to one of orchestration, planning or execution.
EXPECTED_FAMILY_BY_STEP gives each of the five steps exactly one family.
crossCheckRoleFamilies rejects a cross-family role, a role outside the
vocabulary, and an unknown step. It reports every offender, not the first.

It fails CLOSED on an unknown step, deliberately diverging from
assertPointsCoverage's "unknown step -- caught elsewhere". For points that is
true: the canonical-set and duplicate checks catch it. For roles there is no
second net, so failing open would leave an unknown step as the one input that
bypasses the gate.

crossCheckRoles' orchestrator exemption is untouched. ROLE_TO_AGENT maps roles
to agent FILES and the orchestrator is the host, owning none -- admissibility
and agent-file presence are separate concerns with separate checks.

Additive to section 3's existing rule that contribution.into must be a member
of the step's agentRoles, which is unchanged. That governs what a CAPABILITY
may target; this governs what a WORKFLOW may declare. No capability is
affected, and all five workflows already declare single-family sets, so the
gate is green on the commit that introduces it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4740): make the ADR-894 role assignment normative

Section 3 parenthesises its per-step role assignment as "(illustrative roles)".
That word was accurate about the list's PURPOSE -- it illustrated the shape of
a generated contract entry -- and wrong about its STATUS, because the
assignment was load-bearing from the moment the generator consumed it. Read
literally it makes the partition an example rather than a rule.

Appended as a dated in-place section per docs/contributor-standards.md, which
records that an accepted ADR is never rewritten and names this the default
pattern. Section 3's original body is untouched.

The amendment states the three disjoint families, the one family each step
admits, that a step may declare a strict subset but never outside it, and why
this is a clarification rather than a new decision: the contract is generated
from the workflow markers "so it cannot drift into a lie", and all five
workflows have always declared single-family sets. What was absent was any
statement that it is required, and any check that it holds.

It also pins the distinction that is easy to re-merge: contribution.into being
a member of agentRoles governs what a CAPABILITY may target and is unchanged;
the family rule governs what a WORKFLOW may declare. The CONTEXT.md glossary
entry for the Loop Host Contract records the same, beside the agent-reference
drift guard it already documented.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4740): add changeset fragment

pr:0 placeholder is backfilled with the real number once the PR exists.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4740): backfill changeset pr number

Replaces the pr:0 placeholder with 4742 now that the PR exists. Verified with
GITHUB_BASE_REF=next, the way CI runs them: changeset lint and lint:docs both
go from invalid_pr(0) to ok. Without that env both report success without
evaluating the branch at all.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4740): stop injecting the orchestrator procedure into executors

claude-orchestration declared a contribution at execute:wave:pre with
into:"executor". loop-hook-dispatch.md defines a contribution as "inject
fragment.inline verbatim into the context for the role named in into", so its
267 lines were injected into EXECUTOR prompts whenever the capability was
enabled. Those lines are orchestration end to end -- construct a wave manifest,
resolve the dispatch backend, invoke the Workflow tool to spawn executors,
bridge per-agent results into the merge chain. An executor can act on none of
it.

Retargeting to into:"orchestrator" would not have been a fix. ROLE_TO_AGENT
carries no orchestrator entry by design: the orchestrator IS the host, and the
host's procedure lives in execute-phase.md. A step's agentRoles enumerates
agents a capability may inject context INTO, so adding orchestrator there would
model the host as an injectable agent -- the same category error pointed the
other way, and it would need an exception carved into the partition the same
issue just made normative.

So the defect is the mechanism, not the label. A contribution injects into an
agent's context; "replace step 3's inline dispatch loop" is a change to what
the HOST does. The contribution channel was serving as a host-behaviour
directive because it was the only channel available at an execute point.

The entry is removed. plan:post into:"planner" is correct and untouched. The
procedure is preserved verbatim at docs/workflow-backend-dispatch.md inside the
capability -- it is the only copy in the repo -- and is no longer injected
anywhere.

Consequence, not softened: the Workflow backend now has no loop wiring.
Detection, emission and config remain and the design is intact, but nothing
dispatches it. Under the separation ADR-1143 itself asserts it never had a
legitimate channel; ADR-1143's own audit already records the end-to-end path
has never been exercised. Wiring it properly needs a host-level mechanism that
does not exist today.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4740): invert the stale execute:wave:pre registry assertions

Removing the contribution left four surfaces asserting or describing the old
state. Caught by an isolated review before a verification run was spent, which
is the point of reviewing first: the first of these was a guaranteed CI red.

execute-wave-post-gate-pipeline-e2e asserted against the REAL generated
registry that byLoopPoint['execute:wave:pre'] held exactly one contribution
with capId claude-orchestration. It now holds zero. Inverted to assert exactly
0 -- not a vague >= 0 -- and the #2285 comment above it now explains the
current state rather than the one it was written for.

CONTEXT.md's Claude Orchestration entry claimed two contributions at wired
points. It is now one, and the entry's execute:wave:post label was already
wrong before this change: the manifest said execute:wave:pre. Rewritten to one
plan:post contribution, why the execute-point one was removed, and where the
procedure now lives.

One assertion in claude-orchestration.test.cjs could not fail. It tested for
the prose "(into the executor)" while the doc says "(`into: executor`)", so no
plausible wording matched it and the paired plan:post assertion was carrying
the row. Replaced with a check on the structural claim, and proved RED by
restoring the two-contribution wording before reverting.

The moved procedure keeps section headings that speak as a live contribution --
"When this contribution is active", "Why execute:wave:pre". Preserving the body
verbatim was deliberate, so the headings stay and an editor's note under the
header explains why they read that way.

A sweep of all 17 files referencing byLoopPoint found no further siblings: the
remaining hits are a synthetic capability fixture and an empty-points test that
already expected no active hooks, both correct before and after.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-14 18:30:47 -04:00
Tom Boucher
eb49ff98df fix(#4728): stop presenting the retired Gemini CLI as a supported runtime (#4743)
* fix(#4728): stop presenting the retired Gemini CLI as a supported runtime

#1928 removed the Gemini CLI runtime after Google sunset it on 2026-06-18, and
updated the ENGLISH docs. The locale mirrors and the runtime-loaded workflow
prose were not updated in the same change, and no gate asserts the ABSENCE of a
retired runtime, so both drifted quietly for a year.

The finding that shaped this change: English is already correct. docs/
ARCHITECTURE.md, CONFIGURATION.md, USER-GUIDE.md, how-to/install-on-your-runtime.md
and CLI-TOOLS.md carry zero runtime-axis Gemini references; the only English hits
anywhere are a Gemini 2.5 Pro MODEL line, the GEMINI_API_KEY row, and prose that
correctly documents the retirement. So the docs half of this is translation lag,
not a content decision, and every locale edit here is parity with an existing
English line rather than new wording:

  - install-on-your-runtime.md  English has NO `### Gemini CLI` section  -> deleted
  - USER-GUIDE.md :843          "…, Antigravity CLI, Kilo)"              -> substituted
  - ARCHITECTURE.md             English has NO Gemini CLI table row      -> row deleted
  - ARCHITECTURE.md :24         English holds `Kimi CLI` in that slot    -> Kimi CLI
  - context-monitor.md :3       "`AfterTool` for Antigravity CLI"        -> substituted
  - spike-and-sketch.md :93     "(Codex, Antigravity CLI, etc.)"         -> substituted
  - configure-model-profiles    "Codex, OpenCode, Antigravity CLI, or Kilo" -> substituted
  - COMMANDS.md                 English keeps only hyphen + Codex bullets -> colon bullet deleted
  - FEATURES.md                 source docs/features/multi-runtime-support.md:10
                                lists no Gemini CLI                       -> name removed

ARCHITECTURE.md:24 is the clearest case for reading English rather than
substituting blind: Antigravity ALREADY appears later in that list, so replacing
Gemini CLI with Antigravity would have named it twice. English holds Kimi CLI
there, so that is what the locales get.

The largest single class was hand-duplicated boilerplate. A "Text mode" paragraph
repeated across 34 runtime-loaded workflow files ends "…required for non-Claude
runtimes (OpenAI Codex, Gemini CLI, etc.)". No lint enforces that sentence and no
script syncs it, so every copy was edited. These files are read by the agent at
runtime, so they steer behavior rather than only informing a reader — which is why
this class matters more than its word count suggests.

The slash-command-form section is restructured in all four languages to match
English, which had already dropped its colon-form bullet. That bullet claimed the
colon form is "Gemini CLI only", which was false on its own terms independent of
the retirement: `/gsd:…` is GSD's canonical AUTHORING token, rewritten per runtime
at install time, and NO runtime registers it — VALID_COMMAND_STYLES is
{slash-hyphen, shell-var} and 18 of 19 runtimes declare slash-hyphen. Substituting
the runtime name would have left the claim false with Antigravity's name in it, so
the claim is gone, matching English.

Two anchor regressions were caught and fixed while doing that. zh-CN lost its
explicit {#slash-command-forms-hyphen-vs-colon} anchor while its TOC still linked
it; the anchor is restored. ko-KR and pt-BR never had an explicit anchor and rely
on the slug generated from the heading text, so shortening the heading broke their
own TOC links; those links now point at the new slugs. English's heading lost its
anchor while its TOC still links the old one — that latent English bug is
deliberately NOT copied.

Preserved, because `gemini` is not one thing here and a blanket sweep breaks the
product: ~/.gemini/antigravity{,-ide,-cli} and ~/.gemini as their parent;
~/.gemini/config (#3738); GEMINI.md; hookEvents "gemini"; GEMINI_API_KEY in all
four locales; every gemini-* model id and the Gemini 2.5 Pro references in
ko-KR/pt-BR/zh-CN (ja-JP genuinely lacks that line — the locales have diverged, so
a uniform patch would be wrong); the hook-event dialect notes, which are
RE-ATTRIBUTED rather than deleted because Antigravity inherits that dialect;
reapply-patches.md:93's legacy-install note; host-integration-capability-matrix.md
:27 and :342, which correctly record the sunset and Antigravity's contract;
whats-new-1.7.0.md and FEATURES.md:3506, which document the retirement itself; and
the generated launcher preamble, which belongs to epic #4632 — zero
_GSD_SHIM_NAME lines appear in this diff.

Coverage: a #4728 block in tests/gemini-runtime-removed.test.cjs asserts the
retired name is gone from STRUCTURAL POSITIONS (a level-3 heading, a table row's
first cell, a runtime-example parenthetical) rather than asserting the string is
absent, which would be wrong. It pairs those with positive PRESERVE assertions
over the same files — Antigravity's heading, ~/.gemini/antigravity, GEMINI_API_KEY,
AfterTool — so a patch that deletes too much fails as loudly as one that deletes
too little. The model-axis test pins both the presence in three locales and the
absence in ja-JP, so a later uniform patch that "helpfully" adds it back fails.
The new docs/ reads tripped lint-docs-guard-registration for the first time in
this file, so the test is registered in scripts/docs-guard-registry.cjs.

Not covered here, by design: nothing above would catch a Gemini-as-runtime
reference appearing in a NEW file tomorrow. That is the repo-wide drift guard,
#4729, which must land last — written now it would red on the very references this
change removes.

Fixes #4728

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4728): fix four review blockers, including a vacuous test and my own duplicate

A full matrix run on 31f12d7943 FAILED with 3 real failures, and an isolated
adversarial review returned BLOCK on four blockers. All of it was correct.

1. I committed the exact error I claimed to have avoided. The commit message
   boasted that ARCHITECTURE.md:24 proved the value of reading English rather
   than substituting blind, because Antigravity already appeared later in that
   list. Five hundred lines further down the SAME four files, my
   `Gemini:` -> `Antigravity:` substitution produced TWO consecutive
   `- Antigravity:` bullets, because an Antigravity bullet was already there.
   English (ARCHITECTURE.md:827) merges them into one. Now merged in all four
   locales, reusing each locale's existing words.

2. `--gemini` survived in the runtime-detection CLI flag list in all four
   locale ARCHITECTURE.md files. English:817 holds `--kimi` in that slot and
   already lists `--antigravity` later, so this is another place where
   substituting Antigravity would have duplicated it. Now `--kimi`.

3. Two runtime-loaded workflow files still enumerated Gemini one line ABOVE the
   line I had already corrected -- the "Adaptive (Recommended)" option in
   settings.md:192 and new-project/steps/auto-mode-config.md:95.

4. THE NEW TEST WAS VACUOUS for two of its five files. It matched only
   `non-Claude runtimes (` and `(e.g. `, and neither regex could reach the two
   lines the change actually fixed: health.md:52 reads `non-Claude (Codex, ...)`
   without the word "runtimes", and execute-phase.md:1028 has no parenthetical
   at all. The reviewer proved it by re-introducing Gemini at both lines and
   watching the assertion stay GREEN. That same blind spot is what hid finding 3.

   Replaced with a case-sensitive `/\bGemini\b/` walk over every
   `gsd-core/workflows/**/*.md`, which works because every LEGITIMATE gemini
   reference in that tree is spelled differently and cannot match: Antigravity's
   paths are lowercase with a slash (`~/.gemini/antigravity`), Google's model ids
   are lowercase and hyphenated (`gemini-3.1-pro-preview`), and the env vars are
   uppercase (`GEMINI_CONFIG_DIR`, `GEMINI_SESSION_ID`). A bare capitalised
   `Gemini` there means the retired RUNTIME is being named. The walk asserts it
   found at least 50 files so an empty walk cannot pass vacuously, and it now
   covers the nested `new-project/steps/` directory where finding 3 lived.

   Two allowlist entries, both by line CONTENT and both justified:
   reapply-patches.md's `Legacy: ... pre-#1928` note, and settings-advanced.md's
   `Known provider` menu. The second was escalated by the agent rather than
   decided: Section 8 of that file says model policy is defined "independently"
   of the runtime, so `(Claude / OpenAI / Gemini / Qwen)` is the PROVIDER axis --
   the same axis as the lowercase model ids -- and must keep working.

   Proven to fail, not just asserted: the predicate reports 0 offenders on the
   real tree and exactly 2 on a /tmp copy with Gemini re-injected at
   health.md:52 and execute-phase.md:1028.

Also from the review: a `| Gemini |` COLUMN survived in the locale FEATURES.md
comparison tables (English has none) -- removed from all three, with header,
separator and every body row kept aligned; two ENGLISH runtime-axis sites were
missed by my own parity standard (how-to/execute-a-phase.md:88 and
how-to/verify-and-ship.md:89, the latter doubly stale since #4716 retired the
Gemini reviewer lane); docs/USER-GUIDE.md:12 linked a dead anchor, which I had
found and deliberately left -- record-and-proceed on a known defect is exactly
what the rules forbid, so it is fixed; docs/COMMANDS.md:12 and all four mirrors
still claimed "the hyphen and colon forms are runtime-specific spellings" with
no colon form documented anywhere, so that false sentence is deleted; and ko-KR
had the installer rather than the user doing the targeting.

The other two matrix failures were the compact-content benchmark baseline, which
drifted because this PR changes byte counts, refreshed via the script's own
`--write` path rather than by hand; and this commit's emitted-drift-ack trailers.

Method note on the acks: the failing run measured growth against
origin/next@1110c3b4ee, which is the STALE LOCAL `next` ref -- gsd-test merges
into the local base branch, and this machine's `next` is seven commits behind
origin/next, which is checked out in the main worktree and so cannot be
fast-forwarded from here. The 32 trailers below are computed against the REAL
base (origin/next @ ca8d9d4459) by comparing each tracked file's blob size, which
is one more file than that run reported -- the extra is settings.md, grown again
by fix 3. docs-update.md and map-codebase.md are deliberately NOT acked: they
SHRANK, since there the fix deleted ", Gemini CLI" rather than substituting, and
acking a file no delta consumed is itself an error.

Refs #4728

Emitted-Drift-Ack-Growth: add-tests.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: add-todo.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: ai-integration-phase.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: check-todos.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: cleanup.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: complete-milestone.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: do.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: eval-review.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: execute-phase.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: execute-plan.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: health.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: import.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: inbox.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: manager.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: new-milestone.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: new-workspace.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: note.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: onboard.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: plant-seed.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: profile-user.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: quick.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: remove-workspace.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: secure-phase.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: settings.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: ship.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: smart-entry.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: ui-phase.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: ui-review.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: undo.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: update.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: validate-phase.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Emitted-Drift-Ack-Growth: verify-work.md — retiring the Gemini CLI runtime name; Antigravity is one byte longer
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4728): add the changeset fragment

The PR body claimed one was present and it was not — caught by
scripts/changeset/lint.cjs reporting fail_missing_fragment, not by the
checklist, which is exactly why the lint exists.

Type Fixed: the diff is prose, and a docs-only fix uses Fixed since there is
no Documentation type.

Refs #4728

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-14 16:49:52 -04:00
Tom Boucher
b647e28313 chore(#4727): name the tool-conversion helpers for the runtime that uses them (#4732)
* chore(#4727): name the tool-conversion helpers for the runtime that uses them

GSD has had no Gemini runtime since #1928 removed it (Google sunset Gemini CLI
on 2026-06-18, shipped 1.8.0), yet two helpers were still named for it:

  claudeToGeminiTools    -> claudeToAntigravityTools
  convertGeminiToolName  -> convertAntigravityToolName

The sole consumer is convertClaudeAgentToAntigravityAgent, whose own comment
read "Map tools to Gemini equivalents (reuse existing convertGeminiToolName)".
Nothing named Gemini consumes them, because nothing named Gemini exists. The
new names follow the convention the file already sets with its neighbouring
Copilot pair, claudeToCopilotTools / convertCopilotToolName.

Zero behavior change. Every mapped VALUE is byte-identical, deliberately:

  read_file, write_file, replace, run_shell_command, glob,
  search_file_content, google_web_search, web_fetch, write_todos

Those are Gemini's built-in tool dialect and Antigravity genuinely speaks it.
This rename covers only the identifiers, which are the one part of the surface
that was GSD's choice rather than Google's contract.

Renamed in BOTH copies. CLAUDE.md labels bin/install.js "(generated)", but no
script emits it -- build:lib is tsc -p tsconfig.build.json and writes only
gsd-core/bin/lib/**. These converters are the #1099/#1173/#1182 situation: they
were extracted into src/runtime-artifact-conversion.cts while bin/install.js
kept its own working inline copies, so each symbol existed twice in two
independently hand-maintained files. Renaming one would have left two names for
one concept. Verified first that no capability descriptor resolves either by
name -- antigravity's descriptor names only convertClaudeCommandToAntigravitySkill
and convertClaudeAgentToAntigravityAgent, neither of which moved.

Comments keep their reasoning and their issue refs (#3362 AskUserQuestion,
#1394 Skill/SlashCommand); only the subject is corrected, from "Gemini CLI" to
Antigravity speaking the Gemini dialect. Those describe the dialect's behavior,
which is still Antigravity's behavior, so deleting them would destroy the record
of two real bugs.

docs/research/gemini-to-antigravity-migration.md is left unedited and carries a
dated addendum instead: it is pinned to c0b2a05d2f and quotes #1928's commit
message verbatim, so rewriting a citation to match a later tree would falsify a
primary source. ADR-1593's dimension-3 row is updated, because that table is a
present-tense index of which helper implements each dimension and would
otherwise name a symbol that no longer exists.

Coverage: the module is the only export surface -- bin/install.js exports none
of these four, its inline copies being module-private -- so the new assertion
targets gsd-core/bin/lib/runtime-artifact-conversion.cjs and checks the new keys
present, the old keys absent (no alias left behind), deepStrictEqual on the whole
map so an added or removed key fails, and each excluded input individually. The
installer's inline copy stays covered behaviorally by the existing test that
imports convertClaudeAgentToAntigravityAgent from bin/install.js.

Phase 4a of epic #4709. Refs #4727

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4727): fix three review blockers — ADR append-only, honest verdict, changeset

The isolated adversarial review returned BLOCK on three majors. All three were
right and all three are fixed here.

1. ADR-1593 was amended IN PLACE, violating docs/adr/README.md:5: "ADRs are
   append-only. Amendments extend existing ADRs with a dated section rather
   than replacing them." The dimension-3 row is restored to its original text
   and a dated "Amendment — 2026-09-14 (#4727)" section is appended instead.
   Worse than the policy breach: the previous commit applied OPPOSITE rules to
   two docs in one change, freezing the research doc's citations while
   rewriting the ADR's. Both now follow append-only.

2. The research-doc addendum claimed "the rename recommended in the PRESERVE
   table has landed" and that the "PRESERVE — trap" verdict "still holds".
   Neither is true. §2(c) is headed "MUST NOT be renamed" and the §6 table
   files both symbols under (c). The rename OVERTURNS that verdict, and the
   addendum now says so in those words: it is a NARROWING of (c), whose real
   subject is what Google owns -- the directories, the dialect, GEMINI.md, the
   model ids, and for these two symbols the mapped VALUES, which stay
   byte-identical. What (c) had swept in with them were two GSD-chosen
   identifiers no external contract references. Claiming endorsement from a
   verdict that forbade the change was the actual defect; the substantive
   argument was always sound.

   The addendum also now names the two superseded rows (~:55, ~:136) so a
   later reader is not misled, and discloses that §2(a)'s verbatim quotation
   (~:40) no longer matches its source: it reproduces the test docblock's old
   "convertGeminiToolName" wording, and #4727 reworded that docblock. The
   docblock had to move -- leaving it would make the #1928 guard describe a
   symbol that does not exist -- so the mismatch is disclosed rather than
   papered over by editing the quote, which is the one thing the addendum
   exists to avoid.

3. no-changelog was the wrong call. scripts/changeset/lint.cjs reports
   fail_missing_fragment because the diff touches src/ and bin/, and
   CONTRIBUTING.md:216 states src/ edits are user-facing "even though the
   generated .cjs is gitignored", with :224 adding "When unsure whether a
   change is user-facing, add the fragment." Confirmed concretely: gsd-core is
   in package.json's files array so the compiled module ships, and there is no
   exports map, so a consumer's deep require of
   gsd-core/bin/lib/runtime-artifact-conversion.cjs resolved
   .convertGeminiToolName before this change and gets undefined after. A
   Changed fragment is added. I had asserted "nothing user-facing" without
   running the repo's own changeset lint; the reviewer ran it.

Two review findings are accepted and recorded rather than fixed, both in the
research addendum's new §8: the bin/install.js half of the rename is
test-unprotected (that file exports none of the four identifiers and the export
audit asserts undefined for both spellings, so reverting it breaks no test --
its behavior is covered, its naming is not), and closing that needs the
repo-wide drift guard, which is #4729 and the last phase of the epic for
precisely this reason.

Refs #4727

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4727): backfill changeset pr number to 4732

Refs #4727

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#4727): assert both halves of the windsurf pre-write guard's contract

PR #4732's `conformance test (windows-latest, 24, shard 2/3)` failed on exactly
one assertion, and the base branch was green, so this is not inherited:

    tests/windsurf-hooks-bridge.test.cjs:104
    expected exit 2, got 0
    stderr: gsd-windsurf-pre-write: git probe 'git rev-parse --show-toplevel (cwd)' …
    duration_ms: 2909

Root cause, not a flake. hooks/gsd-windsurf-pre-write.js gives every git probe a
2000 ms budget (SPAWNOPT.timeout) and FAILS OPEN when a probe cannot run — its
own header states that outright, because "a hook bug must never wedge Cascade".
hooks/lib/git-probe.js (#3911) exists precisely because that budget is routinely
exceeded in CI; its header records a macOS run landing at 2084/2112/2177 ms,
just past the budget, and its reportIfUndetermined() announces the case on
stderr while deliberately changing no exit code.

So the hook has TWO documented outcomes:

  (a) probe resolved and the file's git root differs  -> BLOCK, exit 2
  (b) probe UNDETERMINED (timeout / spawn failure)   -> FAIL OPEN, exit 0,
                                                         announced on stderr

G1 and G1b asserted `status === 2` unconditionally, encoding only (a). They
therefore fail whenever the documented (b) occurs, which makes them
load-sensitive by construction. My diff did not touch that hook or its tests;
it re-packed the Windows chunks (6 -> 8 under #4737's derived cap), which raised
load enough to tip the 2 s budget and expose the latent assertion.

Both tests now branch on whether the hook ANNOUNCED an undetermined probe, and
assert the correct half in each case. This is not a loosened assertion:

  - undetermined -> exit 0 is REQUIRED. That arm still has teeth, because it
    fails if the hook ever blocks on a probe it could not determine, which is
    the dangerous direction — wedging the agent on a hook bug.
  - determined   -> the original exit 2 plus the original stderr-reason regex,
    unchanged.

The matcher is tied to reportIfUndetermined's exact message rather than a loose
/git probe/, and was proven against both strings: it matches the real
undetermined diagnostic and does NOT match a normal block message. No retry, no
sleep, no timing-dependent logic.

Deliberately NOT done: raising the hook's 2000 ms budget. That is forbidden here
without an explicit instruction, and it would only move the cliff rather than
fix the test's false premise.

Scope note: this is a test fix in a file unrelated to the rename, carried here
because it is what makes #4732 red. CLAUDE.md's no-deferral rule is explicit
that a defect found anywhere in the tree is fixed in the current change, and
that it overrides one-concern-per-PR.

Refs #4727

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-14 15:11:27 -04:00
Tom Boucher
9c2927bff4 fix(#4733): derive the win32 chunk cap, isolation bar, and unknown-file weight (#4737)
* test(#4733): pin the cap, unknown-file weight, and isolation rules

Failing-first coverage for the three defects that let a Windows conformance
chunk be killed at the 600s per-chunk backstop with zero failing tests.

The previous boundary rows were VACUOUS: they asserted literal arithmetic
(21 * 18122 <= 400000) that cannot fail, and in doing so masked a shipped
win32 cap of 23 -- a value that violates the very inequality they claimed to
pin. These rows constrain defaultMaxFilesPerChunk itself, from both sides, so
the shipped value is a derived maximum rather than a magic number.

A second vacuous row was caught by review and removed: it recomputed the
isolated set from the function under test using the identical predicate, so it
was empty by construction. It is replaced by an exact deepEqual against the
expected basenames, a cross-platform identity row, dynamism rows in both
directions, an inclusive boundary triplet, and invalid-threshold throw rows.

The cross-platform identity row is the regression guard for a threshold that
was briefly anchored to the per-platform file-COUNT cap; it fails if isolation
ever becomes platform-dependent again.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4733): derive the win32 cap, isolation bar, and unknown weight

A Windows conformance chunk was killed at the 600000ms per-chunk backstop with
no test having failed, taking next red. Three compounding defects.

The win32 cap of 40 permitted 40 * 18122 = 724880ms against a 600000ms
backstop -- 121% of it -- so two rounds of budget-tuning could not hold. The
cap is now derived: 22 is the largest value satisfying cap * 18122 <= 400000.
The budget is 400000, not the raw backstop, because the chunk that died summed
to only ~348328ms of per-file time -- a per-chunk overhead gap of at least
1.72x that no per-file table models.

A file absent from the timings table was priced at medianWeight. The table is
skewed 18.8x, so an unknown weighed 0.0533 -- 19x cheaper than average, and
measured 17.5x under its real cost. Unknowns are now priced at the mean.

ISOLATED_HEAVY_FILES was a static Set, stale by construction. Isolation is now
derived from an absolute ms bar (0.3 * 400000 = 120000ms) converted to weight
units via the live table's mean, so a file that gets heavy is isolated
automatically instead of waiting for someone to edit a list.

Review caught that an earlier cut anchored that bar to the per-platform
file-COUNT cap -- a category error, count vs weight, which silently returned
seven of the historical eight files to the shared pool on linux/darwin. Since
macOS runs the full matrix only after merge, that would have planted a red
next no PR could catch. The bar is absolute and platform-independent.

Also from review: isolation no longer requires unit-suite membership, so
fragment-single-edit-propagation.install.test.cjs -- 575000ms, 96% of the
backstop in one file -- is eligible; partitionIsolatedFiles throws on a
non-finite or non-positive threshold instead of silently isolating nothing;
and stale per-shard figures no test pinned are removed rather than recomputed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4733): backfill changeset pr number

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-14 12:30:51 -04:00
Tom Boucher
b54c1c5848 fix(#4709): retire the Gemini CLI reviewer lane (#4716)
* fix(#4709): retire the Gemini CLI reviewer lane

Google stopped serving Gemini CLI for the free/Pro/Ultra tiers on 2026-06-18 —
the same sunset that removed the gemini RUNTIME in #1928 (shipped 1.8.0). GSD
targets solo developers, so those tiers ARE the user path: the lane spawned
`gemini {{model}} -p -`, a binary that no longer answers for the majority of
users, and five locales documented it as a supported choice.

The lane was re-created after #1928 by the reviewer-lane-as-manifest-data work
(6a9babda69, #2798/#2837, ADR-2782). Per the maintainer that re-creation was an
error in that buildout rather than a considered decision, so this corrects a
mistake and needs no ADR-2782 amendment.

Reviewer roster: 12 lanes / 13 flags -> 11 lanes / 12 flags.

TWO sources of truth had to be removed, not one. Deleting
capabilities/gemini/capability.json left the capability registry at 11 lanes
while src/review-lane-descriptor.cts's hand-maintained REVIEWER_LANES array
still carried its own complete gemini entry at 12 — precisely the disagreement
checkReviewerLaneParity exists to catch. Both are gone; both parity checkers
now run clean against the real tree (lane parity ok/0 violations, docs parity
0 violations).

Surfaces stripped of the dead flag:
- capabilities/gemini/ deleted; registry and capability-matrix regenerated
- src/review-lane-descriptor.cts: REVIEWER_LANES entry, docblock count, and the
  three doc comments that used --gemini as a live example
- commands/gsd/{review,plan-review-convergence,autonomous,progress}.md and the
  four matching skills/*/SKILL.md: argument-hint frontmatter and flag bullets
- gsd-core/workflows/help/modes/{full,full.compact}.md: /gsd-help signatures,
  the detected-CLI list, and the reviewer-title list
- gsd-core/workflows/settings-integrations.md: the integrations wizard no longer
  offers "Gemini" as a model option, and the settable-keys list drops it
- gsd-core/workflows/review.md: the `command -v gemini` probe, the --gemini
  flag, the roster frontmatter, the install pointer to the sunset repo, and the
  jq-less / precedence / self-skip lane lists
- gsd-core/workflows/sync-skills.md: "two runtimes (grok, gemini) resolve to
  ANOTHER runtime's skills root" is now one runtime; gemini never aliased
  anything, it fell through canonicalizeRuntimeName to a fail-closed default
- docs/{CONFIGURATION,COMMANDS,CLI-TOOLS}.md, docs/reference/capability-matrix.md,
  docs/how-to/set-up-cross-ai-review.md — including its `npm install -g
  @google/gemini-cli` instruction and the two rows recommending --gemini
- docs/features/{cross-ai-peer-review,opt-in-parallel-reviewer-lanes}.md as the
  generator inputs behind docs/FEATURES.md, plus the three locale FEATURES.md
  signature lines the docs-parity gate covers (the #2781 class: a flag change
  that never reaches the mirrors)

Counts reconciled against measurement rather than arithmetic: 8 timeout keys of
11 lanes, 11 budget keys, 9 model keys, and four hardcoded literals in
tests/reviewer-lane-declarations.test.cjs (NEW_LANE_ONLY_IDS 5->4, LITERAL_ROSTER
12->11, two roster counts 12->11).

BEHAVIOR CHANGE, accepted deliberately: `gsd config-set review.models.gemini`
now errors with "Unknown config key". An existing key already in
.planning/config.json still parses and is simply never read, so no project fails
to load. This is the repo's own documented policy for exactly this case
(docs/CONFIGURATION.md:327 — "a key left over from a removed reviewer validated
silently and was never read. Such a key is now rejected by config-set"), so no
installer migration ships. Note my first measurement of this was WRONG: I tested
config-get, which reads undeclared keys fine, and generalised. Read and write are
different surfaces and gave different answers.

Antigravity is untouched throughout — its --antigravity/--agy flags,
review.models.agy, ~/.gemini/antigravity configHome, ~/.gemini/config global
skills root (#3738), hookEvents "gemini", GEMINI.md instruction file, and every
gemini-* model id it actually runs on.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4709): changeset for the reviewer-lane retirement

Type Removed: the --gemini flag and its three config keys are user-visible
surface that no longer exists.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4709): close the 24 test failures and the locale-doc gap the gates found

An adversarial review and a full matrix run between them found substantially
more fallout than inspection had. All of it is this PR's own, and all of it is
fixed rather than waved off.

THE MATRIX RUN FOUND 24 FAILURES ACROSS 6 FILES. Inspection had predicted two.
The dominant class was a test helper that looks up a lane by slug and throws
`no declared lane 'gemini'`:

- tests/feat-2483-review-claude-mds-guard.test.cjs (6) — used gemini as the
  "other declared first-party lane" to contrast against claude's env
  suppression. Now qwen, verified from source as a lane that declares no `env`
  (only claude does), so the contrast still holds.
- tests/review-lane-descriptor.test.cjs (6) — the duplicate-flag and
  duplicate-section fixtures deliberately COLLIDED with a real declared lane to
  prove the parity checker reports a duplicate. `--gemini`/`Gemini` no longer
  collide with anything, so the checker reported
  `descriptor_lane_not_in_registry:acme` instead and the tests proved nothing.
  Now collide with `--codex`/`Codex`, reproduced against the real checker.
- tests/review-reviewer-selection.test.cjs (3) — these distinguish KNOWN-but-
  undetected from UNKNOWN. gemini flipped categories, inverting what they
  proved. The known case now uses qwen; `__nope__` stays the unknown fixture.
- tests/review-default-reviewers-resolution.test.cjs (2), and
  tests/settings-integrations.test.cjs (3) — the wizard now offers three
  reviewer CLIs, not four, so the test and its name say three.
- Two count assertions the earlier sweep missed outright:
  reviewer-lane-declarations.test.cjs:359 (`length, 12`) and
  reviewer-docs-parity.test.cjs:681 (`>= 12`).

THE LOCALE-DOC GAP, and why the parity gate stayed green over it. All four
locale mirrors still documented `--gemini` as a live reviewer flag. The
docs-parity checker asserts the PRESENCE of every current flag and never the
ABSENCE of a retired one, so "0 violations" was never evidence those files were
clean — my earlier reading of it as such was wrong. This is the #2781
locale-drift class in the opposite direction. Fixed across 12 locale files:
COMMANDS.md flag lists and table rows, CONFIGURATION.md `review.models.gemini`
rows and reviewer prose, CLI-TOOLS.md config examples, and
set-up-cross-ai-review.md including its install block and its
which-reviewer-to-choose row, which now recommends Antigravity.

ALSO FOUND, and instructive about my own method: docs/CONFIGURATION.md:297 still
carried a `review.models.gemini` row. My sweep had missed it because my grep
excluded lines matching `gemini-[0-9]` to spare Google's model ids — and that
row's example value is `"gemini-2.5-pro"` on the same line. The exclusion built
to avoid false positives created a false negative.

Remaining comment/example sites: src/review-reviewer-selection.cts:309 and
src/config.cts:598 named the dead flag and key as examples;
gsd-core/references/planning-config.md:269 likewise; and
review-reviewer-selection.cts:22 claimed in the PRESENT tense that gemini is a
lane-only reviewer capability. Line 38 of that same docblock says "Before this
phase the five non-runtime reviewers (gemini, ...)" and is left exactly as is —
that is past-tense history, and rewriting it would falsify the record.

Deliberately still deferred to Phase 4, because it is the RUNTIME axis rather
than the reviewer lane: the locale install-on-your-runtime.md `--gemini --global`
instructions, the USER-GUIDE colon-form notes, and the ARCHITECTURE
runtime-detection flag lists.

Both parity checkers green against the real tree; lint:ci exit 0.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4709): backfill the changeset PR number

pr: 0 -> 4716, now that the PR exists. Never guessed ahead of the number.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-14 03:03:44 -04:00
Tom Boucher
1110c3b4ee fix(#4709): stop minting the retired gemini runtime id in shipped surfaces (#4711)
* test(#4709): assert no shipped surface mints a retired runtime id

Extends the #1928 removal guard to the surfaces it structurally could not
reach. Its own docblock scopes it to the installer CLI contract and the
runtime-name-policy exports; it spawns the installer and inspects module
exports, and never reads gsd-core/workflows/**, commands/** or skills/**.

Four structural assertions, all RED on next:
- every RUNTIME= assignment must name a canonical runtime
- the runtime->model-tier table must name only model-catalog runtimes
- runtime selection menus must offer only canonical runtimes
- config-set runtime / model_profile_overrides examples must be canonical

Structural, not textual: each asserts the literal is canonical or the runtime
exists as a catalog key, never that the string "gemini" is absent. That string
is load-bearing across Antigravity's real on-disk contract, so a fifth test
pins that contract from the descriptor (not from a resolved path, which would
read $ANTIGRAVITY_CONFIG_DIR and the real $HOME -- the #4312 defect class).
An over-broad gemini -> antigravity replacement fails there rather than ships.

The menu assertion is scoped by the nearest preceding `question:` matching
/runtime/i, because the same file carries a provider menu (anthropic, openai)
and a budget menu (high, medium, low) whose labels are single lowercase tokens
too and name neither a runtime nor anything the policy should judge.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4709): stop minting the retired gemini runtime id in workflow text

#1928 removed the gemini runtime after Google sunset Gemini CLI on 2026-06-18,
but the removal stopped at the installer boundary. Runtime-loaded workflow text
kept assigning the id, and the name policy's unknown-id fallbacks then applied a
default designed for a never-known FUTURE runtime to an id GSD itself retired:
getRuntimeLabel('gemini') is 'Claude Code', getProjectInstructionFile('gemini')
is 'AGENTS.md', getGlobalConfigDir('gemini') is ~/.claude. A stale id produced a
plausible wrong answer instead of an error.

Those fallbacks are DELIBERATE and are left untouched here -- four docblocks
document them, src/runtime-name-policy.cts:220-222 calls the label default "the
always-safe default, fail-closed", and an existing test in this very suite pins
getProjectInstructionFile('gemini') === 'AGENTS.md'. This commit removes the
REACHABILITY of the retired id instead:

- new-project.md, ingest-docs.md: the runtime-detection cascade mapped
  /.gemini/ and $GEMINI_CONFIG_DIR to RUNTIME=gemini. Both now map
  /.gemini/antigravity{,-ide,-cli}/ and $ANTIGRAVITY_CONFIG_DIR to
  RUNTIME=antigravity, the documented successor. ingest-docs.md was not in the
  original report; the new structural test found it.
- settings-advanced.md: dropped the `gemini` row from the runtime->model-tier
  table. The model catalog has no gemini runtime (runtimeTierDefaults has 18
  keys, none of them gemini), so the row advertised built-in defaults for a
  runtime whose config key is ignored. Its three model IDs were copied from the
  `google` PROVIDER preset -- a provider axis rendered as a runtime axis.
- settings-advanced.md: removed the `gemini` / "Gemini CLI." runtime menu
  option and its group listing, so no menu offers a runtime GSD cannot install.
- settings-advanced.md: repointed the config examples from `runtime gemini` to
  `runtime antigravity`, which ships no built-in tier defaults and is therefore
  the case those overrides actually exist for.
- reapply-patches.md: $GEMINI_CONFIG_DIR -> $ANTIGRAVITY_CONFIG_DIR,
  ~/.gemini/gsd-local-patches -> ~/.gemini/antigravity/gsd-local-patches, and
  the local scan's bare .gemini -> .agents (Antigravity's localConfigDir). This
  file is hand-written, so `npm run sync:launcher` never reached it.
- update.md: bare ~/.gemini and ./.gemini as GSD config dirs -> the real
  ~/.gemini/antigravity and ./.agents.

Antigravity's own Gemini-family surfaces are untouched by design: ~/.gemini as
its configHome parent, ~/.gemini/config for global skills/agents (#3738),
hookEvents "gemini", GEMINI.md as its projectInstructionFile, the
~/.gemini/antigravity{,-ide,-cli} ambiguity probes (#1441), and every gemini-*
model ID. The launcher's own GEMINI_CONFIG_DIR arm is left to #4632, which
absorbed #4347 for it.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4709): record the Gemini -> Antigravity migration research

Primary-source research note behind #4709: the sense taxonomy that separates a
runtime-axis `gemini` (stale) from Antigravity's on-disk contract, Google's
model IDs, and release history (all load-bearing); the PRESERVE table; the
guard-gap analysis; and the per-file inventory with file:line citations.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4709): keep the legacy patches probe, and stop tripping two lint gates

Three review findings, fixed inline.

1. Dropping the global ~/.gemini/gsd-local-patches probe was a regression: a
   pre-#1928 Gemini CLI install put patches there, and a stranded patches dir is
   still the user's work. Restored as an explicitly-labelled legacy arm probed
   AFTER Antigravity, so a live install always wins. This is a directory probe,
   not a runtime home -- it assigns no runtime id, so it does not reintroduce
   the defect this PR closes. The $GEMINI_CONFIG_DIR env probe is deliberately
   NOT restored: that names a runtime config home, which
   tests/declarative-reference-antigravity.test.cjs:307 pins as ignored.

2. The comment added in (1) originally contained the literal string that the new
   structural test matches, so the test flagged its own fix's comment as a mint.
   Reworded. The test was right; a comment in shipped workflow text is as
   readable to a matcher as code is.

3. docs/research/gemini-to-antigravity-migration.md used the colon slash-form
   inside a quoted manifest description. lint-docs-command-form rejects it:
   docs are never passed through the install-time converters, so the colon form
   names a command no runtime registers. Normalised to the hyphen form.

Also verified, rather than assumed: the local scan's .agents entry is
unambiguous. Antigravity is the ONLY runtime declaring localConfigDir '.agents'
across all 19 capability manifests; grok and codex use ~/.agents as a GLOBAL
home, and this scan is local (./$dir).

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4709): retire Gemini CLI from the PR templates, and close two review gaps

Adversarial review findings, all fixed inline.

1. All three .github/PULL_REQUEST_TEMPLATE/*.md still offered "Gemini CLI" under
   "Runtimes tested", and none offered Antigravity. #1928's follow-up dropped
   Gemini CLI from .github/ISSUE_TEMPLATE/*.yml but missed the PR templates, so
   every contributor opening a fix/feature/enhancement PR has been asked for two
   releases which runtime they tested and offered a retired one. Now Antigravity.
   Guarded by a new assertion: runtime checklist labels in the PR templates must
   appear in the runtime label table. Proven non-vacuous by reverting one
   template line and watching the probe report the offender.

2. The #4709 scanning corpus excluded agents/, which also ships runtime-loaded
   markdown including .compact.md variants. Widened: 318 -> 382 files (+64), zero
   new offenders, so the gap was coverage rather than a live defect.

3. gsd-core/workflows/sync-skills.md said "grok and gemini have no dedicated
   installer flag — they alias the codex and claude skills roots respectively."
   The gemini half is wrong twice over: the runtime is retired, and it never
   aliased claude -- canonicalizeRuntimeName returns null for it and the caller's
   fail-closed default merely happens to be claude. Describing that as designed
   aliasing is exactly the confusion this issue is about. Reduced to grok, which
   genuinely does alias the codex skills root.

4. The changeset said the runtime was removed in 1.11. It shipped in 1.8.0
   (CHANGELOG.md:1023 is the enclosing release heading for the #1928 entry at
   :1124). Corrected.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#4709): follow the corrected sync-skills prose, and refresh the compact baseline

Three GREEN-run failures, all caused by this PR's own edits.

1. tests/sync-skills-cross-runtime-refuse.test.cjs pinned the literal phrase
   "grok and gemini have no dedicated installer flag" — a test REQUIRING shipped
   text to name a runtime retired in 1.8.0, which is the exact class #4709
   exists to remove. The assertion and its rationale comment now track the
   corrected prose ("grok has no dedicated installer flag"), and the docblock's
   runtime list drops gemini. The remaining assertions in that file — the
   guard's exit, the installer pointer, the $DEST reference, guard-before-copy
   ordering — are untouched, so #3025's contract is otherwise intact.

2. tests/fixtures/compact-content-benchmark-baseline.json drifted because the
   new-project.md edits changed its compacted size (split "new-project": off
   14279 -> 14308, on 12335 -> 12364; aggregate off 107411 -> 107440).
   Refreshed with `node scripts/benchmark-compact-content.cjs --write`, which
   is that script's own documented remedy.

3. emitted-attribution reported four grown workflow files with no
   acknowledgment. Acked below as commit trailers per ADR-3942, which moved the
   acknowledgment out of tests/emitted-drift-acks/*.json fragments and into the
   PR's own commit range (read with three-dot base...head). Exactly the four
   files the gate named are acked — settings-advanced.md and sync-skills.md
   shrank and are deliberately absent, since a trailer no delta consumed is a
   staleAcks error.

Refs #4709

Emitted-Drift-Ack-Growth: ingest-docs.md — the runtime-detection cascade now names Antigravity's three real directories (/.gemini/antigravity{,-ide,-cli}/) and $ANTIGRAVITY_CONFIG_DIR in place of the single retired /.gemini/ arm and $GEMINI_CONFIG_DIR; three correct paths cost more bytes than the one wrong path they replace.
Emitted-Drift-Ack-Growth: new-project.md — same runtime-detection correction as ingest-docs.md, plus dropping "gemini/" from the two GEMINI.md instruction-file sentences so the prose stops contradicting getProjectInstructionFile, which returns AGENTS.md for that retired id.
Emitted-Drift-Ack-Growth: reapply-patches.md — restores the legacy ~/.gemini/gsd-local-patches probe as an explicitly-labelled arm after an adversarial-review finding that dropping it stranded a pre-#1928 user's patches, and repoints the env/global probes at Antigravity; the four-line comment is load-bearing, since a bare retired-runtime path with no explanation is exactly what the next reader would delete.
Emitted-Drift-Ack-Growth: update.md — bare ~/.gemini and ./.gemini as GSD config dirs are replaced by the real ~/.gemini/antigravity and ./.agents, which are longer strings; no content was added beyond the corrected paths.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4709): backfill the changeset PR number

pr: 0 -> 4711, now that the PR exists. Never guessed ahead of the number.

Refs #4709

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-13 23:08:20 -04:00
Tom Boucher
c0b2a05d2f fix(#4594): one canonical dispatch-identity owner — the emitted format and the parser that reads it back (#4693)
* fix(#4594): give dispatch identity one owner for the emitted format and its parser

The isolation guards decided whether a run-scoped sentinel applied to a
dispatch by regex-scraping model-authored prose. The scrape returned values in
a different namespace from the ones the sentinel records, so the comparison
could never succeed:

  sentinel  { phase: "03", plan: "03-02-hardening" }   <- $PHASE_NUMBER / $plan_id
  prose     "Execute plan 02 of phase 03-auth."
  scraped   { phase: "03-auth.", plan: "02" }          <- greedy (\S+), both wrong

#4594 reports only the phase half. Measured against a real phase-plan-index
run, plans[].id is phase-prefixed, plan-numbered AND slugged, while the prose
carries a bare in-phase plan number — so the plan field mismatches too, and the
Claude path is dead rather than latent. A fresh sentinel was therefore
discarded on every executor dispatch and every legitimate ISOLATION=none
degrade was denied, leaving the work unrun.

hooks/lib/dispatch-identity.js is now the single owner of both halves. The two
prompt-body producers emit a canonical marker carrying the same shell values
the sentinel records, so producer and consumer agree by construction. The prose
frame stays as a fallback, bounded by the phase-token grammar ADR-2121 owns and
deliberately reporting no plan — an absent identifier means "cannot compare"
and is safe; a wrong one is a false mismatch and is not.

The prose sentence itself is byte-identical: the executor agent reads it too,
so the marker is purely additive (Hyrum's Law).

An inapplicable sentinel is now named in the guards' deny reason instead of
being dropped silently — the silence is why this survived three producers and
two consumers unnoticed. Interpolated values come from a sentinel file and from
prompt text, so both are length-bounded and stripped of control characters.

ADR-4630 locks the seam and maps the epic's three phases.

Refs #4630
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4594): resolve eight review findings across the dispatch-identity seam

Three orthogonal review engines ran on 43418af144 — the code-review skill's
Standards and Spec axes, and an isolated adversarial security pass — plus a
self-review of the committed diff. Every finding is fixed here; none deferred.

F1 (major, reproduced). A keyless or unknown-key-only marker — the literal
"[gsd:dispatch]" or "[gsd:dispatch run=..]" — matched the marker grammar and
returned source:'marker' with both fields null, suppressing the prose fallback
entirely. Any prompt text containing that literal silently disabled identity
narrowing, so a fresh sentinel applied to a dispatch it was never scoped to,
defeating #3045 SECURITY F2. Prompt text is attacker-influenceable. A marker
that yields neither recognized key is no longer a marker: the scan continues to
later markers, then later texts, then prose. Forward-compatible tolerance of
unknown keys is unchanged.

F2/F3 (major). The first cut duplicated sanitizeForReason,
describeSentinelDiscard and REASON_INTERPOLATION_MAX_LEN byte-for-byte across
both guards — the exact defect class this epic exists to delete, and with no
cold-load justification, since both hooks already require hooks/lib/. They now
live in hooks/lib/isolation-deny-reason.js, and buildSentinelDiscard lives in
isolation-sentinel.js beside the comparison it mirrors, returning the nested
{sentinel:{phase,plan}, dispatch:{phase,plan}} shape instead of a bespoke
four-field bag that renamed the pairs already flowing through the seam.

F4 (hard violation). The visibility test asserted on the deny reason's prose.
CONTRIBUTING.md prohibits raw text matching on hook output, which is why every
deny carries a stable reason_code. The discard is now a structured
sentinel_discarded field on each hook's stdout JSON, and the test asserts that;
the sentence stays for the operator but is no longer the contract.

F5 (hard violation). The 64-character truncation limit had no boundary
coverage. 63/64/65 are now exercised against the single consolidated helper.

F6 (minor). sanitizeForReason stripped C0/C1 controls but not U+2028/U+2029 or
the bidi overrides, so a crafted value could still reflow or reverse the
message. Both classes are stripped, with a test each.

F7 (major). The producer/template parity test was vacuous — it rendered a
marker and re-parsed its own output, and would have passed with both templates
deleted. It now reads the two workflow templates, extracts each marker line,
substitutes the measured values and asserts the owner's parser returns them.
Proven red by deleting one template's marker line before being proven green.

F8 (doc). ADR-4630 and the design notes claimed the marker is guaranteed on the
orchestrator-worktree path because that prompt is built in shell. It is not:
executor-isolation-dispatch.md:131 says plainly that those are template
placeholders, not shell variables, so {plan_id} is model-substituted there too.
A false guarantee in a design lock is worse than a stated limit. Both documents
now say the marker is model-substituted on both paths and that the prose
fallback is the real floor everywhere. The "3 workflow templates" count was
also wrong — 3 prose sites across 2 files, 2 of which carry the marker.

Refs #4630
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4594): refresh the compact-content baseline and acknowledge execute-phase.md growth

Refs #4630.

The dispatch-identity marker and its substitution note grew
gsd-core/workflows/execute-phase.md by 525 bytes (91846 -> 92371), which drifts
two real-tree guards that lint:ci does not run:

- tests/benchmark-compact-content.test.cjs asserts the committed baseline is
  "up to date"; the split for execute-phase.md moved off 25827 -> 25952 and on
  23576 -> 23701, taking its compaction reduction 8.72% -> 8.67%. Baseline
  regenerated with scripts/benchmark-compact-content.cjs --write.
- tests/emitted-attribution.test.cjs requires a growth acknowledgment trailer
  for any emitted file that grows, keyed on the bare filename. Added below.

The growth is two additions and no rewrites: the [gsd:dispatch ...] marker line
inside the Agent() prompt's <objective>, and the note telling the orchestrator
to substitute {plan_id} with the plan's id verbatim. Both are load-bearing --
the marker is what lets a guard hook match a dispatch to the sentinel the
per-plan gate wrote, and without the note the orchestrator has no instruction
telling it the value must not be paraphrased.

Emitted-Drift-Ack-Growth: execute-phase.md — adds the canonical [gsd:dispatch] identity marker and its {plan_id} substitution note, which the isolation guards compare verbatim against the run-scoped sentinel (#4594)
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4594): set changeset fragment pr to 4693

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-13 15:36:08 -04:00
Tom Boucher
bbdf7e8e84 chore(#4654): add local/no-unconfined-path-join and drain it to zero — Phase 4 of #4636 (#4674)
* chore(#4654): add local/no-unconfined-path-join and drain it to zero

Phase 4 of epic #4636 — the ratchet, and the phase that makes the epic hold.

THE MEASUREMENT THAT RESHAPED THE PHASE. An AST census (the repo's own parser,
not grep) found what the epic never enumerated: ADR-4650 named seven containment
implementations; `src/` alone held roughly 24 more hand-rolled gates across ~13
files, several guarding a write or an `fs.rmSync`. Two verified by reading rather
than pattern-matching — `research-store.cts` comments its own as "ensure the
resolved file path stays inside the store dir" immediately before a write, and
`capability-lifecycle.cts` gates `fs.rmSync` with one.

So the epic's Done-when "one containment predicate, used at every site" was FALSE
when Phase 3 reported it satisfied. It is true now: the rule is clean across
src/, scripts/, gsd-core/bin/ and hooks/ with an EMPTY allowlist.

WHY NOT THE RULE THE ISSUE PROPOSED. #4654 proposed flagging `path.join` whose
first argument is a managed root and whose later arguments derive from argv. That
is a taint analysis over 2046 call sites, in ESLint, without type information;
"derives from argv" is not locally decidable. Any approximation either floods or
is trivially evaded, and a rule that fires on hundreds of correct sites earns an
allowlist of hundreds — the opposite of a ratchet. What is actually duplicated is
the COMPARISON, not the join, and that has one recognizable shape.

  Arm 1  X.startsWith(Y + sep)            the hand-rolled containment idiom
  Arm 2  a containment predicate called as a bare statement, answer discarded

Arm 2 is the issue's "asserts the result was narrowed, not merely that a helper
was called". Its example `validatePath(x, root).resolved` is already
structurally impossible — Phase 3 un-exported `validatePath` — so the remaining
expressible failure is ignoring the answer, which is the defect that recurred
five times in this epic. The census found exactly one live instance
(`milestone.cts:1643`); it now returns the proven `ContainedPath` so consumers
stop re-deriving the path the comment above it was extracted to stop them
re-deriving.

The rule deliberately does NOT try to catch validate-one-path-use-another where
the answer is used but a different variable flows onward. That needs flow
analysis; the branded `ContainedPath` from Phase 3 is the defense there, and the
two are complementary.

PER-SITE FAMILY CHOICE, NOT A DEFAULT. Phase 3's lesson binds: collapsing a
lexical site onto the realpath family broke four tests and was caught only by the
matrix. Every migrated site was triaged individually. The six
installer-migrations tree-walks and the six capability-lifecycle gates take the
LEXICAL family because their operands are already realpath-resolved and they
deliberately treat the final component as a link; boundary sites take realpath.

TWO SITES WITH AN INVERTED CONTRACT, which a mechanical swap would have broken.
`installer-migrations.cts:127` and `runtime-artifact-install-plan.cts:144` REJECT
`target === root` by contract, while the canonical comparison ACCEPTS it. Swapped
naively, a migration could `rmdir` the user's config root and a third-party
descriptor could write at configHome itself. Both keep `=== root` as an explicit
additional arm alongside the predicate call — the predicate decides containment,
the call site keeps its own extra condition (ADR-4650 decision 6).

ONE DUPLICATE DELETED OUTRIGHT: `planning-inspect.cts`'s `isWithinRoot` was
byte-identical to `isContainedIn` and said so in its own docstring.
`isContainedIn` is now exported for callers that have already resolved both
operands and need only the comparison, with a doc note that a caller which has
NOT resolved them must use a full predicate instead.

THE MARKER, AND WHY IT IS NOT THE ALLOWLIST. Nine sites are justified holdouts and
carry `// allow-handrolled-containment: <reason>` with a mandatory, reviewable
reason. Two justifications: (a) not a containment decision — an ancestor-walk loop
condition, sub-repo grouping, worktree identity matching, declared-path coverage;
(b) it IS containment but the canonical predicate is unreachable —
`capability-validator.cjs` is a committed pre-build `.cjs` and the compiled
`security.cjs` is untracked build output, so requiring it would break a fresh
clone. `scripts/lib/drift-scan.cjs` runs under `lint:ci` with the same exposure.
The marker was renamed from `allow-lexical-prefix-match` mid-phase because that
name asserted only (a) and would have stated something false at the (b) sites.

A marker suppresses BEFORE the violation counter increments, so a file whose
every occurrence is marked still reports `staleAllowlistEntry` — otherwise a
drained entry lingers and silently re-permits the site later.

DEMONSTRATED RED, per #4654: a hand-rolled copy reintroduced into a real `src/`
file made `npm run lint` fail with the rule's full guidance message; removing it
returned the tree to clean. Both halves recorded — red alone proves nothing,
since a rule red for an unrelated reason looks identical.

DISCLOSED: `defaultRequireFromInstallRoot` (gsd-tools.cjs) previously carried two
distinct rejection messages and two manual realpath calls; routing it through
`tryWithinRoot` collapses them to one message, and a missing module now surfaces
as MODULE_NOT_FOUND rather than ENOENT. No test asserts either message. The
security property is preserved and slightly strengthened — the candidate is
realpathed and containment re-checked, and the dangling-symlink oracle closure
comes along with it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4654): record the containment ratchet in CONTEXT.md and the security model

Both entries previously described the seam without the thing that keeps it a
seam. They now state what the rule bans, and — more usefully for whoever reads
this next — what it deliberately does NOT attempt: deciding per path.join call
whether an argument came from user input. That question is not locally
decidable, and an approximation across ~2000 join sites would earn an exemption
list of hundreds, which is the opposite of a ratchet.

Also records the marker's two legitimate justifications and that its reason is
mandatory, so the escape stays reviewable rather than becoming a mute button.

Glossary gate 270 refs exit 0; install-tree goldens and CONTEXT-INDEX.json
regenerated and confirmed byte-identical rather than assumed — which also
confirms eslint-rules/ is not a shipped path.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4654): close review findings and the two matrix failures

MATRIX FAILURE 1 — a collapsed message broke a negative-proof test, and my
evidence for collapsing it was wrong. I searched tests/ for the literal string
"resolves outside its install root", found nothing, and reported that no test
asserted it. The test matches a REGEX SUBSTRING, /outside its install root/, so
the literal search missed it. What broke was "NEGATIVE PROOF: a symlinked module
pointing OUTSIDE the install root is not loaded" — the test guarding the exact
property I claimed was preserved. defaultRequireFromInstallRoot now does both
checks again with both messages byte-identical, each routed through the
canonical predicate, which is better than the original since that hand-rolled
both comparisons.

MATRIX FAILURE 2 — shipped migrations are checksum-locked, and a marker cannot
serve there. migrationChecksum hashes plan.toString(), which INCLUDES comments,
so a suppression marker inside a plan body drifts the baseline exactly as an
edit does. Measured: with markers in place, two of the four still differed from
their committed checksums. The four shipped bodies are now byte-identical to
next, and the rule's config excludes those four paths BY NAME rather than by a
directory wildcard, so a NEW migration is still covered. Six containment
comparisons stay un-ratcheted there; that gap is recorded in the rule's Known
gaps, in CONTEXT.md and in the security model rather than left implicit.
Justification (c) is removed from the marker's documented reasons, because a
marker was proven unable to express it.

ADVERSARIAL REVIEW — the sharpest finding was that the rule banned the CORRECT
shape while permitting the incorrect one: startsWith(root) with no separator is
the genuinely unsafe form, since it accepts a sibling such as root-evil, and my
own test blessed it as valid. Flagging every bare startsWith would swamp the
rule, so that stays a STATED gap rather than a silent one. Closed for real: the
template-literal spelling, which the census never saw because it only inspected
plus-concatenation — that surfaced TWELVE more sites, now triaged and migrated.
A separator reached through a const alias is now resolved via scope analysis.
And isContainedIn, exported in Phase 3, was missing from the discarded-result
set, so a bare no-op call went unflagged on the one function the epic funnels
through.

SECURITY REVIEW — the marker could over-suppress two ways: a block comment
worked identically to a line comment, and one marker silently covered every
violation sharing its line. It now requires a Line comment positioned after the
flagged node ends, so it anchors to the node it trails. Four sites had dropped
an unreachable-but-deliberate equality rejection against the root; each is
restored as the call site's own arm. eslint.config.mjs still documented the OLD
marker token, which my rename missed — it would have sent the next author in
circles.

A FALSE GREEN, recorded because it nearly stuck: lint:ci reported exit 0 from a
stale eslint cache while twelve real violations existed. Every lint check here
now clears the cache first.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4654): anchor a suppression marker to the violation it actually trails

The matrix caught this; my own test caught it, on its first execution. The case
"two violations on one line: trailing marker suppresses only the one it trails"
expected 1 error and got 0 — both were suppressed.

ROOT CAUSE: the anchoring accepted any Line comment on the node's line whose
range started at or after the node's end. A trailing marker at the END of a line
sits after EVERY node on that line, so that condition held for all of them.
"After the node" does not identify WHICH node the marker trails. The fix reads
as correct and is not.

FIX: deferred reporting. Violations accumulate during traversal instead of being
reported immediately; at Program:exit each marker claims exactly ONE pending
violation — the one on its line whose end is nearest before the marker begins —
and every unclaimed violation is then counted and reported. One marker, one
suppression. An earlier violation sharing the line is still reported, which is
the property the security review asked for and the previous attempt only
appeared to deliver.

The counter now increments at flush time rather than during traversal, so a
suppressed occurrence still does not keep an allowlist entry alive.

AND A TOOL THAT SHOULD HAVE EXISTED BEFORE THE FIRST MATRIX RUN. `node --test`
is hard-blocked here, so this rule's test file could only ever be executed on
the remote matrix — which is why a broken anchoring shipped into a run. ESLint's
programmatic Linter API is not a test runner, and exercising the rule through it
verifies every case locally in seconds. All 24 now pass locally, including the
two-on-one-line case that failed remotely. That loop should have been built
before the rule was first sent to the matrix rather than after it failed twice.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4654): backfill PR 4674 into the changeset and complete 70-docs.json

The phase gate requires enablementSequence and the Diataxis quadrants; 70-docs
now carries both, with the how-to quadrant skipped for a stated reason rather
than an empty field. The audience for this deliverable is a contributor who
trips the rule, and the task-oriented guidance reaches them in the ESLint
message itself — which names the correct predicate, says how to choose between
the realpath and lexical families, cites the Phase 3 regression caused by
choosing wrong, and gives the marker syntax. A docs/how-to page would be a
second, driftable copy read by nobody at the moment of failure.

enablementSequence is recorded as what it actually is: a VERIFICATION sequence,
not an enablement one. The rule is never off, so there is no off-to-on
transition to describe.

scripts/lint-docs-required.cjs now passes (ok_docs_updated) — it could not
evaluate against the mandated pr:0 placeholder.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 22:17:46 -04:00
Twisted Fate
6edd506cc7 fix(#4558): report a byte-identical restore destination as already_present (#4599)
* fix(#4558): report a byte-identical restore destination as already_present

restore-custom-files treated a destination that is byte-identical to its
backup exactly like a missing one: plan reported it as `eligible`, --apply
re-copied the same bytes and reported `restored`, and both counters
included it. Because update.md drives its restore question off
eligible_count, the workflow re-offered the same no-op restore on every
update and accepting it never settled anything.

Emit a distinct `already_present` outcome for that case. It is excluded
from eligible_count and restored_count, --apply writes nothing for it,
and the backup is left intact. A differing destination is still
skipped_destination_exists and a missing one still restores normally.

Regression tests cover the identical-destination plan/apply paths, the
idempotence-after-success cycle (missing -> restored -> silent plan), and
a mixed backup. Docs for the outcome enum are updated to match.

* fix(#4558): tighten already_present wording after review

update.md's RESTORE_ELIGIBLE == 0 branch now also names the already-present
case, CLI-TOOLS.md no longer calls the follow-up plan run "silent" (the
entry is still reported, just never offered), and a test message reads
correctly.

* chore(#4558): add changeset fragment for #4599

* chore(#4558): acknowledge update.md growth from the restore-outcome guidance

Emitted-Drift-Ack-Growth: update.md — added already_present restore-outcome guidance for #4558

---------

Co-authored-by: TwistedRiCen <16397953+TwistedRiCen@users.noreply.github.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-13 02:16:40 +00:00
BeeHiggs
d1d9ee85a5 feat(#4142): thread convention through the completion-path membership seam (#3644)
* feat(#2761): gated heading-intro selection + one bracket identity grammar

Foundation. Two owner-level changes plus a federated convention resolver; no
reader consumes them yet.

1. GATED SELECTION, not an ungated widening.

   Widening every heading matcher requires the claim "no legacy ROADMAP contains
   a `[CODE.MM]` bracket followed by a digit", and that is false:
   `### [RFC.2119] 5:`, `### [v1.0] 2024:`, `### [ADR.612] 3:` and
   `### [ISO.8601] 2026:` are ordinary headings, and a widened reader claims each
   as a phase — moving phase_count and total_phases and adding W006 on projects
   that never opted in. No narrowing rescues it: the premise is about documents
   we do not control.

   `phaseHeadingPrefixSrcFor(baseline, convention, capturing?)` selects the
   pattern SOURCE at construction time. A project whose resolved
   `phase_id_convention` is not exactly 'bracket' compiles the same source string
   it compiled before. `baseline` is explicit because whether a site spells the
   any-bracket prefix or a bare `Phase\s+` is a fact about that site's history:
   handing the wider grammar to a bare site retro-grants tolerance it never had,
   in both directions — warnings appear, and a warning that fires today vanishes.

   Both bracket forms CAPTURE. `[GSD.999] Phase 07:` previously matched through
   the base alternative, which captures nothing, so a reader saw no bracket, fell
   back to the legacy token rule, and counted a labeled icebox heading while
   excluding the label-less one beside it — two derivations of one ROADMAP
   disagreeing.

2. ONE bracket identity grammar, one width rule.

   The milestone width is reconciled with the emit validator: pad2 output, so
   two digits or 3+ with no leading zero. Earlier spellings diverged in both
   directions — admitting `002`, which the validator rejects, and a bare `0` pad2
   never produces — and the section recognizers accepted `[GSD.2]`, which SCOPED
   a milestone no phase heading could then resolve into, recreating the
   on-disk-count fallback this epic removes. An unpadded bracket is now uniformly
   malformed: it scopes nothing, bounds nothing, sections nothing. W005 on its
   directories is the surfacing signal.

   The milestone field is boundary-anchored, so a malformed run cannot match by
   its prefix (`GSD.002-01` read as sentinel `00`). Recognition stays
   case-insensitive because readers compile `/i`, but identity helpers match
   `[A-Z]`, so a captured id is folded first — otherwise `### [gsd.999] 07:`
   failed every sentinel test. The qualified key shares the width, the `(?=-|$)`
   boundary and the single-sub-phase shape of the directory token, because
   phaseTokenMatches returns unconditionally on a qualified hit: a key matching a
   directory isPhaseDirName rejects would be a final wrong answer.

3. resolvePhaseIdConvention federates workstream -> root exactly as
   config-loader does — including that root is a fallback only when a WORKSTREAM
   is active, so a project-scoped directory stands alone. loadConfig cannot serve
   this: it merges against CONFIG_DEFAULTS and drops keys it does not know, and
   this key is not among them. It governs the bracket-selection reads ONLY.

PHASE_HEADING_PREFIX_SRC is left byte-identical: PR-1 shipped it, nothing
consumes it, and it is superseded rather than redefined.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* feat(#2761): roadmap.cts selects its heading grammar from the convention

Six matchers build their intro through the gated selector, and
cmdRoadmapAnalyze / cmdRoadmapGetPhase / getRoadmapPhaseWithFallback each
resolve the convention ONCE per command and thread it down.

Three sites take the any-bracket baseline (they already tolerated
`[anything] Phase N`); three take label-only (they spelled a bare `Phase\s+`).
Handing the wider grammar to a label-only site retro-grants tolerance it never
had — and not only by adding matches: on a legacy repo an unchecked
`- [ ] **[v1.0] Phase 05: Thing**` bullet would start SUPPRESSING the W006 that
fires today.

Sentinel handling under bracket ADDS a rule rather than replacing one: a
bracketed heading is a sentinel when its bracket milestone is reserved
(`### [GSD.999] 01:`) OR when its token is, so the engine-wide 0/999 backlog
convention keeps applying to `### [GSD.02] 999:`. Replacing the token rule let a
mid-migration ROADMAP — bracket headings plus a legacy backlog block, exactly
the content this epic targets — add entries to the progress denominator. The
captured id is folded before the identity test, so a lowercase
`### [gsd.999] 07:` is excluded too.

The DIRECTORY read is threaded too. `cmdRoadmapAnalyze` resolves the convention
once and hands it to all four of its heading/checklist patterns, but the single
`phaseTokenMatches` call that decides `disk_status`, `plan_count`,
`summary_count`, `has_context` and `has_research` was left two-argument — so
every canonical `{CODE}.{MM}-{PP}-slug` directory read as `no_directory` with
zero counts, on the PR's own headline verb, while the SAME build resolved those
same directories correctly in three other places on the same repo (W006/W007 via
phaseTokenFromDir, `state json` via the milestone filter, and the W021
milestone-complete read through this very helper's three-argument form). It
failed ONLY for the directory shape the convention exists to name: a
mid-migration bracket repo carrying legacy `01-one` dirs resolved fine, which is
why nothing caught it. Measured, bracket vs its flat-legacy twin:
`[["01","no_directory",0,0],["02","no_directory",0,0]]` against
`[["01","complete",1,1],["02","planned",1,0]]`.

The oracle is the twin, computed in the same test run, plus exact literals —
`grep disk_status tests/adr-612-*` was zero hits before this, so neither the fix
nor a future regression had any gate at all.

Disclosed: a ROADMAP written in bracket form before config.json is switched
reads as empty rather than mis-counted. Silent invisibility during the migration
window is the deliberate trade against claiming phases on projects that never
opted in.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* feat(#2761): validate.cts selects its grammar; gated directory recognition

The W006/W007 feeders take the resolved convention as a threaded parameter.
These sites carry the letter-tolerant `[\w][\w.-]*` capture, which makes them
where an ungated widening does the most damage: `### [RFC.2119] 5:` enters
roadmapPhases as a phantom and becomes a W007 "in ROADMAP.md but no directory on
disk" on a project that never opted in.

buildRoadmapPhaseVariants also surfaces the tokens borne ONLY by sentinel-bracket
headings. Surfaced rather than filtered in place because roadmapPhases feeds both
a membership check and a missing-directory warning, and only the latter should
ignore an icebox item.

That set is OCCURRENCE-AWARE, and the subtlety is load-bearing: roadmapPhases is
a TOKEN set, so `[GSD.999] 01` and `[GSD.02] 01` collapse to one entry. Keying
suppression on the token alone let an icebox heading silence a REAL phase that
happens to share its number — a false negative strictly worse than the warning it
removed. A token is suppressed only when no non-sentinel heading bears it.

Directory recognition is added as gated FUNCTIONS beside the exported RegExp
constants, which stay byte-identical: the `{CODE}.{MM}-` prefix is
string-indistinguishable from the letter-prefixed-decimal family this repo
documents as ambiguous, and folding a branch in changes those constants' answers
on exactly that family. A RegExp constant has nowhere to attach a gate.

The recognizer mirrors the emit grammar and delegates the token to the canonical
owner, so recognizer and resolver agree on rejected input as well as accepted.
Both functions throw on a non-string, matching the call pattern they replace.

buildRoadmapPhaseVariants' CHECKLIST scan is capturing, like its heading twin
and like the sibling checklist scan in roadmap.cts, and for the reason that one
states: the bracket id has to ride along or the sentinel filter is blind to
`- [ ] **[GSD.999] 01: Icebox**`. Left un-capturing, the scan called every
checklist token REAL, and the occurrence-aware un-suppression loop then deleted
the icebox token the HEADING scan had correctly marked sentinel — so `validate
consistency` warned that a bracket ICEBOX phase had no directory, in the HOUSE
ROADMAP shape where an icebox appears as both a bold bullet and a detail
heading. `validate health` stayed silent on that same repo, so the two verbs
disagreed — which is the disagreement `sentinelPhases` exists to close.

Both directions are pinned, because the failure mode of a careless fix here is
the opposite one: a real phase sharing a sentinel's token must still warn. It
does, in all four shapes that attack it (sentinel heading + real bullet,
lowercase sentinel, sentinel after the real heading, colon-less bullet).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#2761): count bracket headings, and retire them, in both derivations

Both `total_phases` derivations select their grammar from the resolved
convention, in one commit — cmdStateSync already carries the comment that it
mirrors buildStateFrontmatter "so both report consistent percents (#3242 Bug B)",
so teaching one and not the other ships that divergence.

The #1514 retirement filter widens WITH the counter it protects. The canonical
gesture strikes the checklist BULLET and leaves the detail heading intact, so a
bracket-form retirement went undetected and the phase stayed in the denominator
forever. That is half a fix alone: the retired key is compared against
phaseKeyFromDir, which called extractPhaseToken with no convention. Both halves
land here.

Under bracket the sentinel token rule composes as the full engine set {0, 999},
so this counter agrees with `roadmap analyze`, which has always excluded both —
otherwise the two derivations report different numbers for one ROADMAP and the
changeset's "excluded from every count" is false as written. The LEGACY path
keeps its pre-existing 999-only rule: widening it there would move legacy totals,
so the two stay split off the bracket path exactly as they are today.

The sync-side assertion reads the PERCENT sync writes into the STATE.md body, not
the frontmatter total_phases. Sync's own counter never reaches that field — the
read derivation writes it — so asserting the frontmatter after a sync measures the
read path twice and lets a mutation to the write-path guard survive.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* feat(#2761): verify.cts bracket-coherence W021 + selected milestone-complete read

The shipped milestone-prefixed W021 gate keeps its ROOT-only config read,
verbatim base semantics. Federating it silently moved a legacy convention's
answer in BOTH directions on workstream repos — a W021 that fires at base
vanishing, and one that is silent at base firing. resolvePhaseIdConvention
governs the new bracket-selection reads only.

B6, the milestone-complete check, keeps its ungated POSTURE (bug-557 pins it
with an empty config) but selects its grammar from the convention. Inferring
'bracket' from the shape of a matched bracket ran a repo-failing check against a
legacy ROADMAP that merely contained `### [RFC.2119] 5:`. Directory resolution
widens with the heading read, so a bracket repo whose phases are on disk stays
silent, and a bracket sentinel is not reported as unstarted.

checkBracketCoherence is advisory and gated. Anchored to tokenizeHeadings so
fenced examples cannot warn and heading level is structural. Its scope rules each
close a way it silently did nothing or fired wrongly: only a genuine MILESTONE
heading opens or closes a section (a `### Notes` used to reset scope and disable
both sub-checks); a legacy `## v3.0` DOES close it; an M-NN or letter-suffixed
phase heading raises missing-bracket and CONTINUES; a bare `#### 2026:` is not a
phase; the full h2-h6 range is processed. Its section recognizer shares the one
milestone width, so an unpadded `### [GSD.3] 05:` can no longer be a phase to the
id grammar and a section to the section grammar at once, silently re-scoping
every warning after it.

validate consistency suppresses bracket sentinels in its missing-directory
warning — the two verbs disagreed, health suppressing via notStartedPhases while
consistency did not. The legacy reading is untouched, including its pre-existing
wart that `### Phase 999:` still warns there.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#2761): scope the milestone by its bracket; select the disk-side filter

Two roadmap-parser reads, both of which made a bracket project's totals track
the disk instead of the ROADMAP.

The ADR pins the bracket milestone heading as `## [GSD.02] Foundation` — a name,
no version — but scoping matched STATE's `milestone: v2.0` STRING against a
heading, so the canonical form matched nothing and total_phases fell back to the
directory count. The rule was re-derived in THREE places: extractCurrentMilestone
plus two `milestoneBounded` guards; fixing one left the others falling back
regardless, so they are now one gated helper. It matches the CANONICAL padded
spelling only — accepting `0*N` bounded a milestone whose phases were invisible,
which un-suppressed a progress percent computed off an unscoped disk count.

getMilestonePhaseFilter's heading scan becomes the 14th selected read. On a
bracket ROADMAP it collected nothing, so the filter degraded to pass-all and
buildStateFrontmatter counted every other milestone's directories — making the
bracket convention strictly worse than the M-NN one it supersedes on the property
that matters most: totals must track the ROADMAP, not the disk.

The DIRECTORY side of that same filter is selected with it. Teaching only the
heading scan was half a fix and a worse one: `milestonePhaseNums` became
non-empty, so the pass-all degrade stopped firing, but no bracket directory could
satisfy the three legacy dir checks (numericRe fails on `GSD.02-05-five`, the
custom-id match captures the project code `GSD`, and stripProjectCodePrefix does
not strip a dotted prefix). Every bracket directory was rejected, and
completed_phases / total_plans / completed_plans / percent all collapsed to 0
while `state sync` went on writing a percent off the unfiltered disk — `state
json` reporting 0% on the same repo, in the same second, that STATE.md's body
called 67%. That is the #3242 Bug B divergence this PR exists to avoid, and
total_phases could not show it: `Math.max(phaseDirs.length, roadmapPhaseCount)`
floors it at the ROADMAP count no matter how many directories are rejected.

The dir side matches on the milestone-QUALIFIED id, delegated to the owner's
gated `phaseTokenMatches(dir, id, 'bracket')`, not on the bare token: READING-B
puts the milestone in the bracket, so `GSD.01-01-old-one` and `GSD.02-01-one`
share the token `01` and only the qualified key separates them. The qualified ids
are kept in their own set — a hyphen in `milestonePhaseNums` would flip
`roadmapUsesHyphenedIds` and silently move the LEGACY dir path on a bracket repo
— and the branch is ADDITIVE: on a miss it falls through to the three legacy
checks, so a bracket project carrying legacy-shaped directories reads unchanged.

Both are resolved lazily and gated, so the legacy path pays neither a config read
nor a second scan and cannot change answer. The scoping call is also GUARDED:
resolvePhaseIdConvention reaches planningDir, which throws a plain Error for a
GSD_PROJECT/GSD_WORKSTREAM segment carrying `/`, `\` or `..`. At base the only
planningDir call in extractCurrentMilestone sits inside the STATE-read try, so
the function returned normally on such an environment; an unguarded one here let
that escape and broke the never-throws invariant that getRoadmapPhaseInternal and
getMilestoneInfo three hundred lines below carry #2245 / ADR-227 notes about.
Unreachable through the CLI — GSD_WORKSTREAM is rejected up front by the
workstream-name policy and GSD_PROJECT throws identically at base — but reachable
by any in-process embedder, which is precisely who that invariant is for. The
filter's own resolve call was already inside its try and is unaffected.

The milestone-qualified key is formed only for a token that is itself a bracket
phase token. `${bracketId}-${token}` is a string SPLICE, so a mid-migration
heading carrying an M-NN label — `### [GSD.02] Phase 02-01:` — spliced to
`GSD.02-02-01`, which the qualified-key grammar reads as milestone 02 / phase 02:
the `-01` truncated, both such headings collapsing to one key, and the heading
claiming `GSD.02-02-two`, the directory it does NOT name, while rejecting
`GSD.02-01-one`, the one it does. The guard drops those headings back to the
unqualified legacy path, restoring the base ACCEPTANCE VECTOR exactly — pinned
against the milestone-prefixed reading of the same ROADMAP, which is
base-identical on this shape.

Scoped precisely, because the fixture moves one number that the guard does not
touch: `total_phases` on it reads 1 at base and 2 here. That is the bracket
heading COUNT this PR exists to add, not the splice — measured identical with and
without the guard, and identical to what the canonical `### [GSD.02] 01:`
spelling does on the same fixture (both read 2 with zero directories on disk,
where base reads 0). The claim is base-equivalent ACCEPTANCE, not a
base-equivalent reading.

One consequence is stated rather than fixed: a heading whose token carries a
hyphen still puts that hyphen into milestonePhaseNums and so still flips
`roadmapUsesHyphenedIds`. Base does the same for that spelling, so preserving it
is what keeps the shape base-equivalent; excluding the token would have moved
answers versus base on malformed input. The comment at the qualified-set
declaration is corrected to claim only what is true — it keeps QUALIFIED IDS out
of that flag's input, not hyphens in general.

The oracles ship with it, and they are the five numbers, not the one: the parity
gate now asserts total_phases, completed_phases, total_plans, completed_plans AND
percent, on both derivations, on two fixture shapes (one milestone; two
milestones with stale prior-milestone directories on disk). The oracle is the
flat-legacy twin, built in the same test run and compared number for number,
plus exact literals so a shared wrong answer cannot pass.

The oracle SUBSTITUTION is itself pinned. The M-NN spelling of these shapes could
not serve, because buildStateFrontmatter's #2445 de-dup key captures only a
directory's leading integer and collapses `02-01-one` / `02-02-two` /
`02-03-three` to one — measured [3,0,1,0,0] against the flat-legacy twin's
[3,2,3,2,67], identically at base and before this fix, and structurally
unreachable from the bracket key space. That reasoning is only sound while it
stays true, so a characterization test holds the M-NN reading down on the two
numbers that do not depend on which directory wins the mtime race. Widen the
de-dup key and it fails, instead of quietly invalidating the changeset's
disclosure.

Also adds the call-site pin. The structural table pins transcription against the
selector; it cannot see a call site whose BASELINE ARGUMENT is wrong. Flipping
verify.cts's milestone-complete site to the wider baseline grants a
fires-on-every-repo check tolerance it has never had, and every behavioural test
still passed. The pin reads the shipped sources and asserts the mode at each of
the 14 sites, count-exact.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): pin the bracket read surfaces in the parity gate

This gate exists because #2043 fixed one bug across five hand-edited copies of a
rule and #2232 was the residual that survived, because a later reader could not
tell the copies were one rule. PR-2 adds two consumers, so they belong here.

Surface 7 — the heading read and the directory read must agree about WHICH phase
a `MM-<seg>` pair names, across the shared width corpus, and the bracket and
legacy spellings of one heading must yield the same token.

Surface 8 — the two bracket directory readers, in BOTH directions. Agreement on
ACCEPTED input was already pinned; agreement on REJECTED input is where they
actually diverged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#2761): changeset

Disclosures for the PR body (deliberate, not defects):

- phase_id_convention is not a CONFIG_DEFAULTS key, so loadConfig drops it and
  cannot serve as the convention resolver however the file is federated. This PR
  ships its own workstream->root resolver; adding the key and its value enum is
  later-slice work.
- Convention matching is strictly === 'bracket'. A misspelled value reads as
  not-configured and the project keeps legacy behaviour silently.
- An UNPADDED bracket milestone (`[GSD.2]`) is malformed: it scopes nothing,
  bounds nothing, sections nothing, and is not a phase id. W005 on its
  directories is the surfacing signal.
- WIDTH UNIFICATION MOVED FOUR MERGED PR-1 EXPORT ANSWERS on non-canonical
  inputs, none of which toDir can emit and none of which had a bracket caller at
  base:
    isSentinelPhaseId('GSD.0-01',    'bracket')  true  -> false
    isSentinelPhaseId('GSD.0999-01', 'bracket')  true  -> false
    getMilestoneFromPhaseId('GSD.2-01',   'bracket')  'v2.0' -> null
    getMilestoneFromPhaseId('GSD.002-01', 'bracket')  'v2.0' -> null
  The canonical pad2 sentinel spelling `[GSD.00]` still tests true.
- FLAG TO MAINTAINER: docs/adr/612:132 reads "Sentinel behavior (0.x / 999.x ->
  milestone null) is preserved". After the unification that holds for the
  canonical `00` spelling only, not for a bare `[GSD.0]`. ADR wording is yours;
  flagging the tension rather than editing it.
- The bracket sentinel rule COMPOSES with the legacy one — a bracketed heading is
  a sentinel when its bracket milestone OR its token is reserved. Under bracket
  the state-side token rule is the full {0, 999} set so both derivations agree;
  the LEGACY path keeps its pre-existing 999-only rule, unchanged.
- validate consistency's legacy reading is untouched, including the pre-existing
  wart that `### Phase 999:` warns there while validate health suppresses it.
- find-phase still cannot resolve a bracket phase directory. phase-locator.cts is
  outside this PR's module set. Sibling PR #2559's matchPhaseDirs calls
  phaseTokenMatches without a convention, so whichever slice lands second must
  thread it through.
- Four of the five bracket readers scan raw ROADMAP content, so a bracket heading
  inside a fenced code block is read as a phase. Pre-existing for the legacy
  spelling; parity, not a new class.
- roadmapPhaseLookupSources gained no bracket source: nothing emits a
  milestone-qualified query into it yet.
- roadmap validate remains a separate, unfederated convention reader.
  Pre-existing and base-identical, but two verbs can disagree about the active
  convention on one project.
- _diskScanCache keys on cwd while the values it caches are now
  convention-dependent. Not reproducible through the CLI; pre-existing for the
  workstream dimension, widened here. Stated as inconclusive.
- A ROADMAP written in bracket form before config.json is switched reads as empty
  rather than mis-counted — the deliberate migration-window trade.
- THE READ AND WRITE PERCENTS STILL DIVERGE ON A MULTI-MILESTONE REPO, and that
  divergence is MIRRORED under bracket rather than closed. buildStateFrontmatter
  applies the milestone filter; cmdStateSync does its own fs.readdirSync and never
  calls it, so on a repo carrying prior-milestone directories the read path
  reports the SCOPED percent and the sync body reports the WHOLE-DISK one.
  Measured on the true base build (d04592de), flat-legacy spelling, 3 in-scope
  phases with 1 complete plus 2 stale prior-milestone dirs: `state json`
  [3,1,3,1,33], sync body 60%. The bracket twin of that repo now reads the same
  two numbers — 33 and 60. Scoping the sync counter would move every legacy
  repo's percent, which a bracket read-path PR must not do. The gate pins both
  sides, so the mirror cannot silently become a one-sided fix.
- THE PARITY ORACLE IS THE FLAT-LEGACY TWIN, NOT THE M-NN ONE, and that is a
  measurement finding rather than a preference. buildStateFrontmatter's #2445
  de-dup key captures only a directory's LEADING integer, so the M-NN dirs
  `02-01-one` / `02-02-two` / `02-03-three` all key to `2` and two of the three
  are dropped before they are ever counted: base reads [3,0,1,0,0] where the
  flat-legacy twin of the same repo reads [3,2,3,2,67]. Present identically at
  base and at HEAD, untouched here, and structurally unreachable from the bracket
  key space — `GSD.02-01-one` does not match that pattern at all, so every bracket
  directory keys to its own name. The source line already carries a
  `phase-id-owner:` sanction recording the divergence. Mirroring it under bracket
  would mean manufacturing a collision that cannot occur, so the gate compares
  against the flat-legacy spelling, which is uncontaminated. This paragraph is
  itself pinned: a characterization test holds the M-NN reading on the two
  numbers that do not depend on which directory wins the mtime race, so widening
  the de-dup key in a later slice fails the suite rather than silently making
  this disclosure false.
- THE `phaseTokenMatches` CALL-SITE CENSUS, stated so the remaining gaps are
  auditable rather than implied. 13 call sites outside the owner (phase-id.cts).
  THREE are three-argument: verify.cts:2229 (the W021 milestone-complete read,
  already was), roadmap.cts:436 (`roadmap analyze`'s directory lookup, threaded
  by this PR) and roadmap-parser.cts:792 (the disk-side milestone filter, added
  by this PR). The other TEN are two-argument and stay that way — phase.cts ×5
  (220, 277, 444, 585, 1547), phase-locator.cts:62, smart-entry.cts:243,
  init.cts:1414, milestone.cts:551 and verify.cts:2467. All ten are untouched by
  this PR and base-identical.
  One of them sits in a file this PR DOES edit, so it is named rather than left
  to a reader's grep: verify.cts:2467, `verify schema-drift <phase>`. Measured on
  a bracket repo across base / pre-fix branch / this HEAD, all three agree on all
  three argument forms — `verify schema-drift GSD.02-01` and `… 01` both report
  "Phase directory not found" on every build, and `… GSD.02-01-one` resolves on
  every build through the exact-directory-name fallback. So the user-visible
  shape of what stays broken is: a bracket phase is addressable there by full
  directory name only, exactly as at base. Threading the convention into a
  function this PR never touched, in the last round before ship, is the wrong
  trade; it is where the same one-argument fix goes next, alongside
  milestone.cts:551 and init.cts:1414.
- A BRACKET HEADING WHOSE TOKEN CARRIES A HYPHEN (`### [GSD.02] Phase 02-01:`,
  a mid-migration spelling) forms NO milestone-qualified key, and therefore
  scopes through the unqualified legacy path — base-equivalent ACCEPTANCE, which
  is the claim, and not a base-equivalent reading: `total_phases` on that shape
  moves 1 -> 2 for the same reason it moves on the canonical `### [GSD.02] 01:`
  spelling, because counting bracket headings is what this PR does. Such a token
  still flips `roadmapUsesHyphenedIds`, as it also does at base. The comment at
  the qualified-set declaration now claims only that narrower, true thing.

The `pr:` field carries the sub-issue number as a placeholder — it must be
updated to the real PR number when the PR is opened.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#2761): point the changeset at PR #2867

* test(#2761): fast-check properties for the convention-selection layer

CONTRIBUTING.md mandates a generative property test for parser/bijective-contract
changes; PR-2 shipped six example-based files and none. This adds the missing
layer, scoped to what PR-2 actually contracts — WHICH pattern each reader
compiles, decided by the resolved `phase_id_convention` — rather than restating
PR-1's grammar round-trip properties, which already live in
tests/adr-612-bracket-grammar.test.cjs.

Four properties: P1 an opted-in repo reads the ADR-canonical label-less bracket
heading/dir and a non-opted-in repo is byte-blind to the identical input; P2
every non-bracket convention agrees with the hand-transcribed BASE source over
generated content, including bracket-DOTTED legacy prose (`[RFC.2119] 5:`) that
must never be claimed as a phase; P3 nine per-field mutations are rejected and
the one case variation folds instead; P4 both sides of a phase comparison derive
the same key under the same convention.

Generators template every input from raw primitives — nothing is seeded through
renderPhaseId/toDir, the p2() tautology that made #2258 round 1's property test
structurally unable to find B1. Domain reaches past 99 into the 3+-digit branch
(round 2's numArb-capped-at-99 miss), forces sub-phases in at weight, and pins
both sentinel milestones.

Falsified against the COMPILED lib, not the source: five deliberate mutants
(gate never fires; gate always fires; milestone width widened to \d+; the #612
convention forwarding dropped from phaseKeyFromDir; extractPhaseToken's bracket
branch ungated) each fail the specific property that should catch them —
16/2, 16/2, 15/3, 17/1, 17/1 pass/fail — and the lib restores byte-identical.

An earlier draft of P2 held vacuously: its base regex omitted the markdown
furniture the selected one carried, so every realistic `### Phase NN:` line
matched neither side. The gate-always-fires mutant did not kill it. Both are now
compiled through one function, and that mutant kills P2.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): adversarial malformed bracket tokens across the tolerant readers

The existing boundary coverage stopped at shapes the emit grammar rejects
(unpadded `[GSD.3]`, wrong-case, `12A`). It never exercised a STRUCTURALLY
broken token — a non-numeric milestone, a bracket that never closes, a bracket
nested in another — which is the input a tolerant reader is most likely to
half-read, and the one the PR's own regex commentary is explicit about.

read-tolerance (roadmap heading scan + validate's dir and variant builders):
ten malformed headings, each asserted to be read as a phase by NO convention and
to give the opted-in repo the same answer as the legacy one; the corpus driven
through `roadmap analyze` end to end; malformed DIRECTORY names asserted
unrecognized and non-throwing on all four conventions; and the two variant
builders asserted to agree, since a widening that reaches only one splits
`validate consistency` from `validate health` (the #3242 Bug B shape).

coherence (verify.cts W021): the same six broken shapes asserted to raise no
W021 of their own AND not to re-scope the W021 that follows them — the G2
failure mode reached from a different shape, where a heading that is not a phase
but IS read as a section silently moves later warnings onto the wrong milestone.

Both files gain a pathological-input time bound. Nested quantifiers over a long
unclosed bracket are the classic ReDoS shape and two commits on next (#2828,
#2944) were CodeQL-flagged for exactly that, so the bound is asserted rather
than argued from reading the pattern. The probes themselves parse no regex.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#2761): document "bracket" as a phase_id_convention value

The row listed only `"milestone-prefixed"` and `null`, so after two shipped
slices (#2258 grammar, this PR's read path) the convention had no documented
enum value. CONFIGURATION.md is also a top-10 historical co-changer of both
src/verify.cts and src/state.cts and was absent from this PR.

The row states the boundary rather than the ambition: `"bracket"` changes the
READ path only, there is no migrator and no emit yet, and a project on any other
value compiles the patterns it compiled before. That keeps the docs honest for
the two releases before PR-3 and PR-4 land, instead of describing a convention a
user cannot yet migrate to.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#2761): retype the changeset Added, drop the docs-exempt marker

`Fixed` was wrong by CONTRIBUTING.md's own definition — a fix restores
documented behavior, and bracket read tolerance is the second slice of a
capability that did not exist before #2258. The type also carried a
`docs-exempt` marker, and `Fixed`/`Security` are exempt from the docs-required
lint, so the typing had the effect of routing around a gate this change should
pass. It now passes it: `lint-docs-required` returns ok_docs_updated on the
CONFIGURATION.md row added in the previous commit.

Body gains one sentence pointing at that row and restating that `"bracket"` is a
read-path opt-in until the migrator and write path land.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): pin the version-less bracket milestone scoping gap; narrow the claim

The changeset asserted that milestone scoping "recognises the ADR-canonical
`## [GSD.02] Foundation` heading and applies to the phase DIRECTORIES too." A
CLI probe on that exact heading form falsifies the second half: with no `vN.N`
in the milestone heading the directory side does not scope, and directories from
BOTH the prior and the later milestone are admitted. Measured 4 dirs counted
where the milestone declares 2.

Every bracket fixture in the suite writes `## [GSD.02] v2.0: …`, so nothing
covered the form the ADR actually specifies — and the state.cts doc comment
calls that version-less form canonical.

Mechanism, in extractCurrentMilestone: the bracket scope branch selects the
right currentSection, but `preambleCutoff` keys off a pattern requiring a
version or status emoji, so a version-less roadmap falls back to the current
milestone's own offset and every PRIOR milestone lands in the preamble — whose
phase-stripping regex only strips `Phase N:`-labelled headings, so bracket phase
headings survive it. Independently, `computeSectionEnd` accepts a boundary only
on a version/emoji heading, so the section runs to EOF and every LATER milestone
is swept in. Two sites, bidirectional.

Not fixed here: it changes milestone scoping, which is shared with the legacy
path. Five characterization tests pin today's reading plus a versioned CONTROL
proving the version string is the only difference, and the changeset sentence is
narrowed to what the code does. The DEFECT assertions are written to be
INVERTED by the fix, not deleted — that inversion is its regression proof.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#2761): re-anchor the branch's own cross-file line citations after the rebase

Three of this branch's code comments cite sibling call sites by line number, and
the rebase onto 178ec000 moved two of the three targets:

  roadmap-parser.cts  validate.cts:210 -> :218   (const g = capturing ? 1 : 0)
                      state.cts:1715   -> :1752  (const bg = … 'bracket' ? 1 : 0)
  roadmap.cts         verify.cts:2229  -> :2355  (phaseTokenMatches 3-arg form)

`state.cts:1715` had drifted 37 lines and now lands on the retirement skip, not
the capture-offset idiom the sentence is about — the citation read as evidence
for a claim the cited line does not support.

planning-workspace.cts's `config-loader.cts:618/:649` was checked and is still
correct; left alone.

Comment-only. Build, drift guard and the bracket suites re-run unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#2761): scope the version-less bracket milestone heading too (B1)

computeSectionEnd and the preambleCutoff scan in extractCurrentMilestone
(roadmap-parser.cts) only recognized a milestone boundary heading that
carried a vN.N token or a status emoji. The ADR-canonical bracket
heading (## [GSD.02] Foundation) carries neither, so on that shape
computeSectionEnd fell through to content.length (sweeping every LATER
milestone into scope) and preambleCutoff fell back to the current
milestone's own offset (leaking every PRIOR milestone's bracket phases
into the preamble, whose Phase-N: strip regex never matches them).

Under the bracket scope branch, both sites now also accept a
`#{1,2}\s+\[CODE.MM\]` boundary, built from phase-id.cts's BRACKET_ID_SRC
(single owner of the bracket-id grammar) rather than a re-typed literal.
`#{1,2}` is the deliberate discriminator: a bracket PHASE heading is
level 3 and shares the same `[CODE.MM]` prefix, so a `#{1,3}` boundary
would swallow it too. Reachable only when bracketScopeConvention ===
'bracket' was already resolved (i.e. the bracket scope branch actually
fired), so version-bearing/emoji headings and non-bracket conventions
take the exact pre-existing code path byte-identically — confirmed by
the full adr-612 suite staying green.

Inverts the four DEFECT assertions in the
"#612 PR-2 CHARACTERIZATION: a version-less bracket milestone does not
scope" describe block (tests/adr-612-bracket-phase-counting.test.cjs)
into their regression-proof form, per the block's own doc comment, and
reframes the describe title/comments accordingly. Corrects the
.changeset/2761-bracket-read-tolerance.md fragment, which described the
directory-side version-less gap as an open, un-closed bound.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): thread sentinelPhases into validate health's W006 loop (B2)

cmdValidateHealth's W006 loop (src/verify.cts) destructured only
roadmapPhases from buildRoadmapPhaseVariants, not sentinelPhases —
unlike cmdValidateConsistency, which already skips sentinelPhases with
the identical guard a few hundred lines up. A heading-only bracket
icebox/pre-milestone entry ([GSD.999] / [GSD.00]) therefore gained a
false W006 "no directory on disk" from validate health while validate
consistency correctly stayed silent on the very same ROADMAP — the two
validators contradicting each other.

Threads sentinelPhases through and skips it before the existsOnDisk
check, mirroring the consistency guard exactly. Gated the same way
sentinelPhases already is (empty unless phase_id_convention is
'bracket'), so a legacy repo's W006 reading — including its own
pre-existing wart where a legacy `### Phase 999:` still warns on both
verbs — is untouched; confirmed by the existing "INHERITED WART,
unchanged" test staying green.

Adds the paired-agreement regression test (#612 PR-2 B2 describe block
in tests/adr-612-bracket-read-tolerance.test.cjs): a sentinel-only
bracket roadmap must produce no missing-directory warning from EITHER
validator, plus a CONTROL proving a real phase with no directory still
warns on both. Confirmed red (health false-W006) against the pre-fix
code before applying the fix.

Corrects the .changeset/2761-bracket-read-tolerance.md fragment, which
described the asymmetry as already closed and in the wrong direction
(it credited validate health with already staying silent, when health
was the one falsely warning).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#2761): pin mixed-shape preamble cutoff and boundary heading levels

Closes two self-flagged coverage gaps in the B1 fix (commit 08d5b0c4)
ahead of adversarial review. No src change — all three new tests are
green against the code as committed.

1. earliest-of-either preambleCutoff comparison: only exercised where
   the version/emoji match and the bracket match happen to land on the
   same heading. Adds the mid-migration mixed shape (version-bearing
   PRIOR + version-less CURRENT) and asserts scoping outcomes (accepts
   booleans + total_phases), not internals.

2. `h.level <= 2` conjunct in computeSectionEnd: provably redundant
   whenever the selected milestone heading is level 2 (every existing
   fixture), since `h.level > level` alone already implies it there —
   a mutant deleting the conjunct would have survived every prior test
   in this file. Adds a level-3 CURRENT-heading fixture (with a real
   PRIOR milestone so the preamble side-channel can't independently
   rescue the truncated phases) that makes the conjunct's deletion
   test-visible, confirmed by hand-mutating a throwaway copy of the
   compiled output (never touching tracked src or the real build) and
   observing the assertion flip. Also pins a level-1 companion case
   (#{1,2} tolerance, not just level 2).

NOT included here: the other mixed-shape direction (version-less PRIOR
+ version-bearing CURRENT) turned out to be a genuine, currently-unfixed
gap — reported separately rather than silently patched or weakened, per
instruction not to touch src while a probe run is in flight.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): engage bracket boundaries when the current milestone heading is version-bearing (B3, self-caught)

Found during round-2 self-verification of B1 (commit 08d5b0c4), while
closing the mixed-heading-shape coverage gaps flagged in my own review
notes. The B1 fix resolved `bracketScopeConvention` only inside the
`if (headingMatches.length === 0)` gate that also drives SELECTION's
own bracket fallback (which heading counts as "current"). That gate is
correct for selection, but `bracketScopeConvention` also feeds
computeSectionEnd's and preambleCutoff's boundary detection further
down — which accidentally inherited selection's gate instead of having
its own.

Trigger shape: the CURRENT milestone heading is itself version-bearing
(`## [GSD.02] v2.0: Current Milestone`), so the primary version-string
match succeeds immediately — headingMatches.length !== 0 from the very
first check — and the entire bracket-resolution branch was skipped. A
sibling milestone (PRIOR or LATER) that is version-less then got
neither the version/emoji boundary rule (it has none) nor the bracket
boundary rule (never resolved), reproducing the original #612 defect
(total_phases falling back to the whole-disk count) through a
structural shape B1's own fixtures never exercised — every one of them
is uniformly version-bearing or uniformly version-less across all
three milestones, never mixed with CURRENT specifically being the
version-bearing one.

Fix: resolve `bracketScopeConvention` unconditionally, decoupled from
`headingMatches.length`. SELECTION is deliberately left untouched — the
`if (headingMatches.length === 0 && bracketScopeConvention === 'bracket')`
fallback that picks which heading is "current" keeps its original gate
byte-for-byte (confirmed by diff: that line is unmodified). Only the
convention *resolution* moved out from behind it, so boundary detection
can consult it regardless of which branch selected the heading. The
extra `resolvePhaseIdConvention` call this now costs on every
invocation (previously paid only when the version match found nothing)
is the accepted cost: a non-bracket repo still resolves to something
other than 'bracket' (or null on a poisoned env, caught exactly as
before), so `bracketMilestoneHeadingRe` stays null and every downstream
branch is byte-identical to today — confirmed by the full adr-612 +
roadmap-parser + state + verify + health-validation suite staying green
(1260/1260) and the all-version-bearing/legacy fixtures showing no
behavior change.

TDD: tests/adr-612-bracket-phase-counting.test.cjs describe block
"#612 PR-2 B3: bracket boundaries engage even when CURRENT is
version-bearing but a sibling is not" — 4 tests, confirmed red against
pre-fix code (leak-in booleans true/true, total_phases 4) before this
change, green after.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): reject same-milestone continuation headings as boundaries (B1)

Gate-2 adversarial review Blocker 1: the B1/B3 boundary fired on ANY
#{1,2} `[CODE.MM]` heading, including one bearing the SAME milestone id
as the one currently selected — a version-less checklist/detail split
(`## [GSD.02] Foundation (Phase Details)`, or an ad-hoc continuation
heading) truncated the current milestone's own section instead of
being recognised as a continuation of it. The `(Phase Details)`
re-append only searches VERSION-STRING matches, so a version-less
continuation heading was cut out and never re-appended — a confidently
wrong, non-degraded phase count for a still-incomplete milestone
(repro8 case 1: 1/1/100 instead of 2/1/50; repro5: same, on a fully
version-less roadmap with no sibling milestones at all).

Introduces one shared helper, isBracketMilestoneBoundary(headingText,
level, selectedBracketId), used by both computeSectionEnd and the
preambleCutoff bracket scan, replacing the ungated `h.level <= 2 &&
bracketMilestoneHeadingRe.test(...)` inline check. `selectedBracketId`
(case-folded via phase-id.cts's foldBracketId, matching the branch's
own fold-before-identity convention) is derived from `selected[0]`,
which is the full matched heading line on BOTH selection paths
(version-string and bracket-fallback), so one extraction covers both.

Level cap stays at `level > 2` for now (temporary — ADR-612's content
discriminator replaces it in the next commit); same-milestone rejection
is the change this commit is scoped to.

DEVIATION from the reviewed plan, caught empirically: applying the
same-milestone rejection at the preambleCutoff site (as literally
specified) regressed an existing pin ("boundary heading level: a
level-1 CURRENT milestone heading also scopes correctly") and a
fenced-heading case (repro10 A3) — because preambleCutoff's job is
"where does the earliest milestone-shaped heading sit, scanning from
the TOP of the document," and the selected heading's own occurrence is
always a correct answer to that question regardless of same-id-ness;
rejecting it let the earliest-of-either comparison fall through to a
stray LATER heading instead. `selectedBracketId` is threaded through as
`null` at the preambleCutoff call site for this reason — bracket-shaped
(and, from the next commit, phase-tail) discrimination still applies
uniformly at both sites; only the same-milestone component is
call-site-specific, since it encodes a "keep scanning past this
heading" instruction with no counterpart in a top-of-document search.

Tests: new describe block "#612 PR-2 B1 round-2: a same-milestone
continuation heading is not a boundary" — RED-turned-GREEN fixtures for
repro8 case 1 and repro5, plus PINs for repro8 case 3 (trailing
different-id icebox still terminates) and repro10 A1 (all-version-
bearing + icebox + Phase Details stays exactly 2/1/50 — no double-count
from the same-milestone exclusion interacting with the pre-existing
detailsMatch re-append). syncedTotal()/syncedPercent() assertions
omitted from the repro10 A1 pin: that fixture carries dirs outside the
current milestone, which exposes the SEPARATE Major 1 defect
(cmdStateSync's body percent from an unfiltered disk scan) — asserted
once Major 1 is fixed, not here.

Full suite green (796/796 across the targeted adr-612 + roadmap-parser
+ state files); node scripts/lint-phase-id-drift.cjs clean; eslint
clean on both changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): bracket boundary discriminates by content, not heading level (B2)

Gate-2 adversarial review Blocker 2: three sites disagreed about which
heading levels are a bracket milestone. The selector
(roadmap-parser.cts's bracket-fallback SELECTION branch,
`^#{1,3}\s+\[CODE.MM\]`) and `isMilestoneBounded` (state.cts) both
admit level 1-3, but isBracketMilestoneBoundary's level cap only
admitted level 1-2 (`h.level <= 2`, from the B1 commit). A `###`-level
bracket milestone heading was therefore SELECTED and BOUNDED but never
TERMINATED: computeSectionEnd ran with level=3, a level-3 SIBLING
milestone survived the pre-existing `h.level > level` (not-deeper)
filter, failed the version/emoji test (version-less), then failed
`h.level <= 2` — falling through to `return content.length` and
sweeping the sibling milestone's own phases into the current one.
Reproduces trek-e's original #612 defect verbatim ("a safe degrade
became a confidently-wrong persisted number") on a heading level the
selector and bounding predicate both already admit (repro2 case C:
4/75% instead of 2/100%; mechanism confirmed directly via repro7 —
extractCurrentMilestone returned the whole 214-byte document).

ADR-612 Decision 1 (docs/adr/612-bracket-phase-id-convention.md:56)
specifies the discriminator as CONTENT, not level: "a phase heading is
a bracket followed by a digit-then-colon ([GSD.02] 05:); a milestone
heading is a bracket followed by a name." Replaces the `level > 2`
rejection with BRACKET_PHASE_TAIL_RE — built by interpolating
phase-id.cts's single-owner phaseHeadingPrefixSrcFor(ANY_BRACKET,
'bracket', false) plus the digit + optional-tag + colon tail every
phase-heading counter in this file already spells, not a re-typed
grammar — and widens the level check to a depth-sanity cap of 3
(mirroring the selector's own `#{1,3}` ceiling; NOT itself a
phase/milestone discriminator). Covers the dotted sub-phase heading
form (`[GSD.02] 05.03:`) via the same `[\w][\w.-]*` token, pinned by a
new fixture — the shape where a regex slip in the tail grammar would
hide.

preambleCutoff's own raw-scan regex is widened from `^(#{1,2})` to
`^(#{1,3})` in lockstep: the outer pattern's level ceiling must track
the helper's cap, or a level-3 PRIOR milestone heading is invisible to
that scan and its own phase heading leaks into the preamble
un-stripped (a real double-count this widening closes, verified
against repro2 case C directly).

The existing "boundary heading level: a level-3 CURRENT milestone
heading still scopes correctly" pin (3e562f12) now passes via a
DIFFERENT mechanism than before — its own neighbours are version-
bearing, so it previously passed via the version/emoji rule (the level
cap was never actually exercised by that fixture, per the round-2
review's own finding); with the content discriminator, the SAME
fixture's level-3 phase headings are now correctly excluded because
they are phase-tail-shaped, not because they are too deep. A
deliberate mechanism change, confirmed by re-running that test green
after this commit.

Also updates the "every selector call site declares the right
baseline" governance pin (adr-612-bracket-heading-selection.test.cjs):
BRACKET_PHASE_TAIL_RE is a new, legitimate ANY_BRACKET call site in
roadmap-parser.cts (always passing the literal 'bracket' convention,
since its only caller is already gated on bracketBoundaryActive) —
EXPECTED count bumped 1->2, with a matching BASE_SITES transcription
entry (identical src to every other ANY_BRACKET site, since the
function is pure).

Tests: new describe block "#612 PR-2 B2 round-2: the bracket boundary
is a CONTENT discriminator, not a level cap" — RED-turned-GREEN for
repro2 case C (exact total AND truthful percent, since
isMilestoneBounded already returns true at #{1,3}) and repro7's
mechanism, a PIN for the dotted sub-phase form, and a re-pin of repro8
case 3 (icebox) under the new mechanism.

Full suite green (907/907 across the targeted adr-612 + roadmap-parser
+ state + phase-id files); node scripts/lint-phase-id-drift.cjs clean;
eslint clean on all changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): fence-aware preamble cutoff on the bracket branch (Blocker 3)

Gate-2 adversarial review Blocker 3: preambleCutoff's bracket scan used
a raw content.match/matchAll — blind to fenced code blocks — while its
sibling computeSectionEnd (a few lines above it) already consumed
tokenizeHeadings(content), which strips fences. The two halves of one
boundary semantic disagreed about what a heading is.

A fenced markdown example in the preamble containing a bracket heading
(ADR-612's own docs do exactly this) was textually the earliest
`#{1,3} [CODE.MM]` match: preambleCutoff landed INSIDE the fence,
`preamble = content.slice(0, preambleCutoff)` ended with an unclosed
opener, and the unbalanced fence then blinded
getMilestonePhaseFilter's own tokenizeHeadings(scope) call — every
heading in the returned scope vanished, phaseCount degraded to 0, and
the pass-all filter admitted every directory on disk (repro11's
mechanism, confirmed directly: fence count 1/odd, tokenizeHeadings(scope)
-> only "Roadmap"). Regression vs round-1, which had no bracket pattern
to blind and so fell back to the correct heading (repro12 bracket row:
2/1/50 at round-1, 4/3/75 at HEAD).

Fixed by hoisting one tokenizeHeadings(content) call
(currentMilestoneHeadings) shared by computeSectionEnd and the
preambleCutoff scan, which now iterates that same fence-aware token
list instead of a raw regex. HeadingToken.text is already hash-stripped
and trimmed, so isBracketMilestoneBoundary needs no `^#{1,3}\s+`
re-derivation at this site (that spelling would not match h.text — a
note the round-2 review called out explicitly, confirmed while
porting). selectedBracketId stays `null` here, unchanged from the B1
commit's same-milestone-exclusion reasoning.

DISCLOSED, not fixed (explicitly out of scope per the round-2 review's
own minimal-fix note): the LEGACY (non-bracket) anyMilestonePattern
raw-match path shares the identical fence-blindness hazard and stays
byte-identical — a bracket repo whose preamble has a fenced
VERSION-BEARING heading still has the legacy raw-match win the
earliest-of-either min() (repro12's LEGACY control: 4/3/75, unchanged
across base/round-1/HEAD/this commit). Pinned here so a future reviewer
files this as a known, pre-existing gap rather than a new regression.

Tests: new describe block "#612 PR-2 Blocker 3 round-2: preambleCutoff
is fence-aware (bracket branch only)" — RED-turned-GREEN for repro12's
bracket row and repro11's mechanism (fence balance + non-degraded
phaseCount + correct per-directory admission), a PIN for repro12's
LEGACY control (the disclosed gap, explicitly unchanged), and a PIN for
repro10 A3 (a fenced heading INSIDE the current section must still not
terminate it).

Full suite green (1072/1072 across the targeted adr-612 + roadmap-
parser + state + phase-id + markdown-sectionizer files); node
scripts/lint-phase-id-drift.cjs clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): scope cmdStateSync's disk scan by milestone under bracket (Major 1)

Gate-2 adversarial review Major 1: `state sync` wrote a Progress
PERCENT computed from an UNFILTERED whole-disk scan, beside the
milestone-scoped total_phases/completed_phases it writes into the same
STATE.md via the refreshed frontmatter (syncStateFrontmatter ->
buildStateFrontmatter, which has always applied getMilestonePhaseFilter
for the READ path). cmdStateSync's own `fs.readdirSync` chain (the
WRITE-path scan) never called the milestone filter at all, unlike
buildStateFrontmatter's identical-purpose scan. One command therefore
wrote two contradictory numbers into one file: on the ADR-canonical
version-less bracket fixture (4 dirs, 3 complete; asserted milestone =
2 phases, both complete), base wrote total_phases:2/completed_phases:2
(correct, from the READ derivation) alongside body Progress 75% (wrong
— from the unfiltered WRITE derivation; repro3).

Fixed by threading `getMilestonePhaseFilter(cwd)` through the same
`.filter()` chain buildStateFrontmatter already applies, gated on
`syncConvention === 'bracket'` (falling back to a pass-all predicate
otherwise) — so totalDiskPlans/totalDiskSummaries/diskCompletedPhases/
syncTotalPhases become milestone-scoped under bracket, byte-identical
under legacy.

DEVIATION (approved, stated plainly): an earlier phrasing of this fix
called for mirroring buildStateFrontmatter's filter UNCONDITIONALLY.
Implemented GATED instead — an unconditional filter would ALSO move
every LEGACY repo's persisted percent, since the milestone-scoping-vs-
whole-disk divergence this closes is engine-wide, not bracket-specific.
The gate keeps legacy byte-identical, which is the binding constraint:
this is a bracket read-path PR, not a legacy behavior change.

Nit 2 (informational, no code change): 10 calls to
extractCurrentMilestone on a legacy repo cost 10 config.json
existsSync + 10 readFileSync (0 before B3); accepted, unmemoized cost,
unaffected by this commit.

Also folds in two minors from the round-2 review:
- Corrects .changeset/2761-bracket-read-tolerance.md: the sibling-
  exclusion sentence now states it holds at any heading level 1-3 and
  across a milestone split over two headings (true again now that
  Blockers 1 and 2 are fixed); the percent sentence states plainly that
  `state sync`'s body percent is now milestone-scoped under bracket,
  and unaffected under legacy.
- Records the read/write scoping divergence at currentMilestoneRawRanges
  (src/roadmap-parser.cts) in a comment: it did not receive B1/B2's
  bracket boundary fixes, currently harmless (its only consumer falls
  back to whole-content mutation, and every mutation there is still
  Phase-labelled-only, not bracket-widened), but live the moment the
  write path is bracket-widened — flagged so a future PR closes it in
  lockstep with that work, not after.

Tests: 6 pre-existing tests in tests/adr-612-bracket-phase-counting.test.cjs
needed fixture updates, not logic changes — they used the default
single directory (`GSD.02-01-setup`, phase "01"), which the SENTINEL/
retirement/mixed-heading fixtures in those tests never declare as a
real phase (only 04/05/06/999/etc are declared). Before this fix,
cmdStateSync's unfiltered scan counted that off-roadmap directory
anyway; after this fix the milestone filter correctly excludes it,
which for several of these fixtures made `state sync` a no-op (the
computed 0% coincided with STATE.md's initial template default) and
broke `syncedTotal()`/`syncedPercent()`'s ability to observe anything.
Updated each to pass an EXPLICIT directory naming one of the fixture's
REAL declared phases, preserving each test's original numerator/
denominator intent. One test — "shape 2 WRITE" — was substantively
rewritten: it was a CHARACTERIZATION of the Major 1 bug itself ("the
DISCLOSED legacy gap, mirrored — not closed"), and now correctly pins
bracket closing to 33% (agrees with the read path) while legacy stays
at the disclosed 60% (unchanged, deliberately, per the gating decision
above).

Full suite green: `npm test` 1449/1449 (0 fail, 0 skipped, 0 todo,
single-shard "all" run — includes issue-2765-brace-expansion-lockfile
passing); `npm run lint:ci` clean (0 errors; 2 pre-existing timing-
assertion warnings in files this PR does not touch); node
scripts/lint-phase-id-drift.cjs clean; node scripts/changeset/lint.cjs
ok.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): preambleCutoff identity is offset- and child-aware (round-3 Blocker 1)

Gate-2 round-3 re-verify Blocker 1 (NEW): the round-2 B1 deviation
(39c42a89) threaded `selectedBracketId` as the real value at
computeSectionEnd but as bare `null` at the preambleCutoff scan. The
deviation's rationale — "the selected heading's own occurrence is
always a correct earliest answer" — was right, but `null` disables the
same-milestone check for EVERY candidate, not just the selected one.
Any bracket-shaped heading earlier than the selected milestone was
accepted as a boundary regardless of identity: a same-id checklist/
overview heading preceding the version-bearing selected heading (cases
A, B — the version lands on the LATER half of a split, or a plain
overview heading with no "(Phase Details)" spelling), or a DIFFERENT-id
bracket-shaped PROSE heading with no children of its own sitting above
the current milestone's content (case D — `## [ADR.612] Heading
convention used by this roadmap`). In every case the region between
that false boundary and the real sectionStart was silently dropped —
a completed phase vanished and `state sync` persisted a confident 0%
where base and round-1 both correctly wrote 50%. Regression vs base
AND round-1 (not merely "under-fixed", per the round-3 review's own
severity note).

Fixed with two changes, both scoped to the preambleCutoff scan only
(computeSectionEnd already threads the real `selectedBracketId` and is
untouched):

(a) `h.offset === sectionStart` now bypasses BOTH the same-milestone
    check inside isBracketMilestoneBoundary (passing the REAL
    `selectedBracketId` for every other candidate) and the new child
    rule below — the selected heading's own position is definitionally
    the correct answer, so neither discriminator should run against it
    (rejecting it would mean rejecting the heading against ITSELF).
    Closes cases A and B — verified by the reviewer's own one-liner,
    reproduced here.

(b) New `bracketHeadingHasMatchingChild`: an otherwise-accepted
    candidate (bracket-shaped, not phase-tail-shaped, not the same id
    as the selected milestone) must ALSO have a next-strictly-deeper
    heading carrying its OWN bracket id to count as a boundary. This is
    what a genuine sibling milestone has (its own phase children share
    its bracket id — `## [GSD.01] Setup` / `### [GSD.01] 01: …`) and an
    unrelated bracket-shaped prose heading does not. A candidate with
    no such child at all (childless — e.g. an empty prior milestone, or
    one immediately followed by a same-or-shallower heading) degrades
    to NOT a boundary — over-inclusive, the safe direction: its own
    heading text stays in the preamble, contributing nothing to any
    phase count (not phase-shaped). Closes case D, which (a) alone does
    not — verified: without this rule, `[ADR.612]`'s prose heading is
    indistinguishable from a genuine prior sibling at this site.

As a side effect, also neutralizes Nit 2 (a colon-less `[GSD.02] 05`
heading spuriously terminating the preamble): a colon-less bracket
heading is not phase-tail-shaped so isBracketMilestoneBoundary alone
would accept it, but it is — precisely because it is malformed/
incomplete rather than a real milestone — childless, so the child rule
rejects it too. Pinned.

Known interaction with the fence-blind SELECTION path (disclosed by
the reviewer, not introduced here, tracked for the next commit): when
`sectionPattern` selects a FENCED version-bearing heading (an
extremely pathological shape — a fenced example whose text happens to
match STATE's asserted version), no token exists at `sectionStart`, so
the `h.offset === sectionStart` bypass never fires and the loop falls
through to the ordinary same-id / child-rule checks. This composes
with the round-3 Major 1 fix (next commit) rather than introducing a
new defect — SELECTION itself is untouched by any of this — but is
worth stating plainly rather than rediscovering.

Tests: new describe block "#612 PR-2 Blocker 1 round-3: preambleCutoff
identity is offset- and child-aware" — RED-turned-GREEN for cases A, B
(rv-attack1) and D (rv-attack1b) with syncedTotal()/syncedPercent()
assertions (the persisted 0% is the point), a PIN for a genuine prior
sibling with real children (still excluded), a PIN for a childless
prior sibling (degrades to not-cutting, over-inclusive/safe), a PIN
for the colon-less Nit 2 shape, and the reviewer's rv-mech1 mechanism
re-run as a proper test (scope now equals the full input document,
phaseCount 2, both dirs accepted).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 937/937 pass (930 baseline + 7 new). node
scripts/lint-phase-id-drift.cjs clean; eslint clean on both changed
files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): fence-aware version/emoji half of preambleCutoff on the bracket branch (round-3 Major 1)

Gate-2 round-3 re-verify Major 1 (NEW): ff6bf0a8 (round-2 Blocker 3)
made the BRACKET half of preambleCutoff's "earliest milestone-shaped
heading" search fence-aware, but left the VERSION/emoji half a raw
`content.match` even on the bracket branch. A fenced VERSION-BEARING
example heading in a bracket repo's preamble (ADR-612's own docs
illustrate the LEGACY heading shape exactly this way, inside a fenced
authoring-guide block) was still textually the earliest match for that
raw regex, winning the min() and un-suppressing a wrong persisted 75%
that base correctly suppressed (rv-attack3c fixture C1: base
suppressed the percent entirely — `isMilestoneBounded` false — HEAD
wrote 75% where truth is 50%).

Fixed by deriving the version/emoji half from the SAME fence-aware
`currentMilestoneHeadings` token list as the bracket half, on the
bracket branch only — the exact `/^Phase\s+\S/i` / `/v\d+\.\d+|✅|📋|🚧/i`
pair `computeSectionEnd` already uses against `h.text`. The non-bracket
(legacy) path is untouched: it keeps the raw `content.match`, byte-
identical to before, including its own fence-blindness (repro12's
LEGACY control, pinned unchanged in the round-2 Blocker-3 test block —
not re-pinned here to avoid duplicating an already-covered assertion).

Not rated Blocker (per the review) because it is not a regression vs
round-1 and the fixture (a version-BEARING fenced example in a bracket
repo) is rarer than the already-fixed bracket-heading case; still
fixed now rather than disclosed, per this arc's own precedent (every
prior "disclose instead of fix" call in this PR has been overturned on
re-review).

Tests: new describe block "#612 PR-2 Major 1 round-3: preambleCutoff's
version/emoji half is fence-aware on the bracket branch" — RED-turned-
GREEN for case C1 (readTotal + syncedPercent, so the persisted 75% is
directly observed, not just the read-path total), PIN for case C2 (the
already-fixed fenced-bracket-heading shape, unchanged).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 939/939 pass (937 + 2 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean on both changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): correct changeset claims + mark runtime-gated BASE_SITES row (round-3 minors)

Gate-2 round-3 re-verify Minor 2: three changeset sentences in
.changeset/2761-bracket-read-tolerance.md were overstated in a new
direction after round-2:

- The split-milestone claim ("across a milestone split over two
  headings") was true only when the version-bearing heading came
  FIRST (repro8 case 1); false when it came LATER (round-3 Blocker 1
  case A). Now restated to say plainly "with the version-bearing
  heading in EITHER position" — true again now that round-3's Blocker
  1 fix lands earlier in this range.
- The "counted from the phases... rather than from every directory on
  disk" claim was false on cases A/B/D (a strict subset of the
  milestone's own phases). Restated as "ALL of the phases... not a
  subset", and extended to state that an unrelated bracket-shaped
  heading with no phase children of its own (case D's `[ADR.612]`
  shape) does not truncate the milestone either — true now, not before.
- "Each widened read is SELECTED by the project's phase_id_convention"
  was literally false for BRACKET_PHASE_TAIL_RE, which is RUNTIME-gated
  (via its only caller, isBracketMilestoneBoundary, itself only
  consulted when bracketBoundaryActive) rather than selector-gated.
  Restated behaviourally: "every widened read ENGAGES only when the
  project's resolved phase_id_convention is bracket" — true for both
  gating mechanisms, so it no longer implies a selector call this site
  does not make.

Minor 1: the STRUCTURAL IDENTITY test's BASE_SITES row for
BRACKET_PHASE_TAIL_RE (added in the B2 commit) asserts a property of
`phaseHeadingPrefixSrcFor` — the function — not of the call site; it
would pass unchanged even if the site were deleted. Safety at that
specific site rests entirely on a runtime gate the test cannot see.
Added `runtimeGated: true` to the row and threaded it into the
generated test's own title (`… [runtime-gated, not selector-covered]`),
so the gating mechanism is visible in test OUTPUT, not only in a source
comment that could drift silently.

No production code changed. Targeted suite green (48/48 in the
affected file); `node scripts/changeset/lint.cjs` ok; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): harden round-3 preamble cutoff — subtree child scan + level cap

Team-lead review of f87bba0e found two edges in the round-3 preamble-
cutoff code, both hardened here.

AMENDMENT 1 — bracketHeadingHasMatchingChild (2e06aef5) checked only
`headings[index + 1]`, the IMMEDIATE next heading, not the candidate's
whole subtree. A genuine prior sibling milestone whose section opens
with a non-bracket subsection before its first phase heading
(`## [GSD.01] Setup` / `### Notes` / `### [GSD.01] 01: Old`) was
therefore wrongly rejected as a boundary — its real phase heading sits
TWO headings deep, not one — leaking its entire section into the
preamble unstripped.

CONFIRMED RED, not merely theoretical (built and ran the fixture
against f87bba0e before touching the fix, per instruction): scope
membership DOES drive the disk-side filter on this shape.
`GSD.01-01-old`'s directory was wrongly admitted into the CURRENT
milestone's filter via the leaked heading's qualified key
(`GSD.01-01`) — 3/2/67% where truth is 2/1/50%.

Fixed by scanning the candidate's full SUBTREE: continue past a
non-matching deeper heading instead of returning false on the first
one; only a same-or-shallower heading actually closes the subtree and
yields "no match found". A candidate whose entire subtree closes with
no same-id hit (including a genuinely childless one) still degrades to
`false` — over-inclusive, safe, unchanged from before.

AMENDMENT 2 — c483552a ported the version/emoji half of preambleCutoff
to the token-based scan with no level cap; the raw
`content.match(anyMilestonePattern)` it replaced was anchored
`^#{1,3}\s+`. A level-4+ version-bearing heading in the preamble
(`#### v2.0 notes`) therefore won the scan on the bracket branch where
the raw pattern — and the legacy path, unaffected — ignores it
outright. Fixed with `if (h.level > 3) continue;`, mirroring the
depth-sanity cap isBracketMilestoneBoundary already applies to the
bracket half of this same scan.

Tests: new describe block "#612 PR-2 round-3 hardening: subtree child
scan + level cap on preambleCutoff" —
- RED-turned-GREEN for the Notes-intervening fixture: exact 2/1/50 (was
  3/2/67), plus the disk-filter observable (`GSD.01-01-old` now
  correctly excluded).
- PIN for the level-4 preamble heading: the scope now PRESERVES the
  heading's text (was silently dropped before this fix — harmless in
  this minimal fixture's total_phases specifically, since the dropped
  text carries no phase-shaped content, but a real correctness gap
  against the raw pattern's own ceiling) — asserted via scope content,
  not total_phases, since that number is invariant here either way.
- PIN for the LEGACY control on the same level-4 shape — unchanged,
  confirming the raw content.match path is untouched.

Re-verified the existing genuine-prior-sibling and childless-sibling
pins (round-3 Blocker 1 commit) still pass under the subtree scan —
both fixtures' outcomes are unchanged since their same-id hit (or its
absence) was already at the first deeper heading.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 942/942 pass (939 + 3 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean on both changed files. Full `npm test` + `npm run
lint:ci` deferred to the team lead's own run per instruction.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): bracketHeadingHasMatchingChild requires a same-id PHASE child (round-4 Blocker 1)

Gate-2 round-4 re-verify Blocker 1 (NEW): the round-3 hardening's
subtree scan (fbfd0fca) proved SAME-ID-NESS but never asked whether
the matching child was PHASE-shaped. Case F1 re-opens round-3's case D
one heading later: `## [ADR.612] Heading convention` is followed by
its OWN sub-heading `### [ADR.612] Examples` — same bracket id as the
candidate, but MILESTONE-shaped (a name, no digit-then-colon), not a
phase. Same-id-ness alone satisfied the subtree scan and re-cut the
preamble at exactly the shape the round-3 hardening was written to
close.

Failing input: `## [ADR.612] Heading convention` / `### [ADR.612]
Examples` (prose) / `### [GSD.02] 01: One` (the current milestone's
own first phase, now unreachable) / `## [GSD.02] v2.0: Foundation` /
`### [GSD.02] 02: Two`. Truth 2/1/50. HEAD read 1/0/0, and `state sync`
reported "nothing to do" (exit 0, `{synced:true,changes:[]}`) because
its wrong 0% happened to equal the STATE.md seed — a half-done
milestone read as untouched with no write-path signal at all.

Fixed with the reviewer's one-conjunct addition: a same-id child only
counts if it is ALSO phase-tail-shaped (`BRACKET_PHASE_TAIL_RE`) — the
same single-owner discriminator `isBracketMilestoneBoundary` already
uses one level up for the identical distinction (phase vs milestone),
reused here rather than re-derived. This is exactly what the
changeset's own wording already claimed ("no phase children of its
own") — the code now matches the sentence rather than the other way
around.

Docstring updated at the function itself: the rule is "same-id PHASE
child", not "same-id child".

Tests: new describe block "#612 PR-2 round-4 Blocker 1: the same-id
child must be PHASE-shaped" — RED-turned-GREEN for F1 with
syncedTotal()/syncedPercent() (the persisted 0% — and the
report-nothing-to-do write-path silence — is the point), PINs for F11
(colon-less same-id child) and F11b (bullet-only phase list): both
correctly stay excluded either way, and the leak the phase-shape
requirement newly creates for these two shapes is INERT — a colon-less
heading forms no qualified key (getMilestonePhaseFilter's own
phase-heading pattern requires the colon too) and a bracket bullet
never matches the legacy-only BULLET_PHASE_LINE_PATTERN — confirmed
directly via getMilestonePhaseFilter, not merely inferred. Re-verified
the four existing child-rule pins (F2 subtree-closure, F3 deep-nested
same-id, F4 level-4 same-id, F5 childless-at-EOF) are unaffected by the
phase-shape requirement, since every one of them already used a
colon-bearing same-id child.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 946/946 pass (942 + 4 new). Zero drift measured across the full F1-F12
corpus except F1 itself (F9/F10/F12 remain red, deferred to the
separate Major 1 fix). node scripts/lint-phase-id-drift.cjs clean;
eslint clean on both changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): fence-aware phase counting, milestone bounding, and bracket-fallback selection (round-4 Major 1)

Gate-2 round-4 re-verify Major 1 (NEW): roadmapPhaseCount is a
fence-blind raw `.exec()` over the scope string, duplicated in TWO
independent copies (buildStateFrontmatter's read path, cmdStateSync's
write path). With the bracket alternative now compiled into it (#612),
a fenced EXAMPLE phase heading in the preamble inflates total_phases
and persists a wrong percent that base got right. Two further
fence-blind sites participate: isMilestoneBounded (a raw
`.test(roadmapRaw)`) and the bracket-fallback SELECTOR inside
extractCurrentMilestone (a raw `content.matchAll`, only reachable when
version-string selection finds nothing).

Failing inputs:
- F10 (clean isolate, version-bearing selection): a fenced
  `### [GSD.02] 05: Example phase` in the preamble inflates
  total_phases 2->3, persisting 33% where truth is 50%. LEGACY control
  on the same shape is correct on every build — not a pre-existing
  hazard being inherited, bracket-only.
- F9 (version-less selection): a fenced example carrying the project's
  OWN milestone id additionally confuses the bracket-fallback selector
  (the fenced heading gets SELECTED), compounding with the same
  fence-blind counter. base suppressed the percent; round-1 and HEAD
  both wrote 33%.
- F12 (isMilestoneBounded isolate): the ONLY `[GSD.02]` heading in the
  document is inside a fence, and the asserted milestone genuinely has
  no section at all — HEAD persisted 67% where base correctly
  suppressed the percent (the milestone is absent from the roadmap).

Fixed at the CONSUMER level, not the producer — extractCurrentMilestone's
returned scope string is deliberately UNCHANGED, since every other
consumer of that string needs its full content fidelity and legacy
identity forbids touching the shared string (this branch's own
precedent, ff6bf0a8/c483552a, was producer-level; here the ruling is
consumer-level because the string is shared far more broadly than the
two round-3 fixes' narrower producer edits):

(a) New `countRoadmapPhaseHeadings` (src/state.cts, immediately above
    extractRetiredPhaseNumbers) — ONE shared implementation for both
    call sites, replacing two independently-maintained copies. BRACKET
    convention counts via `tokenizeHeadings(scope)` at levels 2-4,
    testing each heading's hash-stripped text directly — fence-aware by
    construction, since tokenizeHeadings never produces a token for a
    fenced line. LEGACY convention keeps the exact pre-existing raw
    `.exec()` loop, byte-for-byte. A pre-existing, deliberately
    PRESERVED asymmetry between the two original call sites — the read
    path always excluded a bare `/^999\b/` token, the write path never
    did — is threaded through as an explicit
    `includeUnconditional999Check` parameter per call site, so sharing
    the implementation does not silently unify (and thereby move)
    either total.
(b) isMilestoneBounded's bracket branch now scans
    `tokenizeHeadings(roadmapRaw)` for a matching heading (level <= 3)
    instead of a raw regex test. Legacy version-string branch untouched.
(c) The bracket-fallback SELECTOR now builds its candidate set from
    `tokenizeHeadings(content)` instead of `content.matchAll`,
    reconstructing a match-shaped array so every downstream consumer of
    `headingMatches` sees the identical shape the raw-regex path always
    produced. This is the ONE site in this entire arc where SELECTION
    itself changes — selection SEMANTICS are otherwise unchanged (same
    pattern, same first-match-wins by document order); only the
    candidate set is now fence-aware. Pinned that unfenced selection is
    byte-identical.

Zero drift measured across the full historical corpus (repro2-13,
rv-attack1/1b/3c, rv-mech1, rv2-amend1/2, and F1-F11b) except the three
target fixtures.

Tests: new describe block "#612 PR-2 round-4 Major 1: four fence-blind
sites on the bracket path" — RED-turned-GREEN for F10 (with
syncedTotal()/syncedPercent()) and F9 (both layers), PINs for F10's
LEGACY control and F10c (non-phase-shaped fence, unaffected either
way), RED-turned-GREEN for F12 (asserts the percent KEY is absent from
`state json`'s output and that `state sync`'s body stays at its
unmodified seed — the persisted-suppression signal, not merely a
total_phases number), and an explicit PIN that unfenced bracket-fallback
selection (first real milestone-shaped heading wins, no fences
involved) is unaffected.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 952/952 pass (946 + 6 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean on all three changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): correct docstring overstatement + stale consumer-count sentence (round-4 minors)

Gate-2 round-4 re-verify Minor 1 + Nit 1. No production code changed.

Minor 1: bracketHeadingHasMatchingChild's own docstring said a
rejected (no-same-id-PHASE-child) candidate's degrade "contributes
nothing to any phase count" — true of the candidate's OWN heading
text, but not of its SUBTREE, which is what actually stays in the
preamble. F7 (`## [GSD.01] Setup` / `### [GSD.07] 01: Foreign`) shows
a DIFFERENT-id bracket PHASE heading inside a rejected candidate's
subtree DOES form a qualified key and CAN admit a foreign directory —
3/2/67%, stable across base, round-1 and HEAD (base via its own
pass-all degrade). Not a regression, still the declared over-inclusive
/ never-under-inclusive safe direction — the comment now says that,
with F7's numbers cited, at the call site that actually decides
`isBoundary` (roadmap-parser.cts's preambleCutoff loop) rather than
only at the helper's own definition.

Minor 2 (changeset) — VERIFIED, no wording change needed: re-ran F1,
F9, F10, F12 at this HEAD. The "no phase children of its own... does
not truncate it either" sentence (naming the `[ADR.612]` shape
directly) is now literally true — F1 reads 2/1/50. The "counted from
ALL of the phases... not a subset" sentence is now true on every
measured shape — F1/F9/F10 all read 2/1/50, F12 correctly suppresses
the percent. No carve-out for F9/F10 is needed since round-4 Major 1
(3be5c412) closes both; per the fix-round instruction to "only carve
out anything genuinely left," nothing is.

Nit 1: tests/adr-612-bracket-heading-selection.test.cjs's runtimeGated
row claimed `BRACKET_HEADING_INTRO_RE` has "no other consumers" — true
when round-3's f87bba0e wrote it, stale since 2e06aef5 (round-3's own
earlier commit) had already added two more uses inside
bracketHeadingHasMatchingChild. Corrected to state the true count
(three consumers) and re-confirm the conclusion is unaffected: all
three are still nested inside the same bracketBoundaryActive runtime
gate, and BRACKET_HEADING_INTRO_RE is built from BRACKET_ID_SRC, not
phaseHeadingPrefixSrcFor, so it was never a selector site regardless of
consumer count.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 952/952 pass (comment-only changes, no count movement). eslint
clean; node scripts/changeset/lint.cjs ok.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): restore the bracketId guard in countRoadmapPhaseHeadings (round-5 Blocker 1)

Gate-2 round-5 re-verify Blocker 1 (NEW, introduced by 3be5c412): the
merge that created the shared countRoadmapPhaseHeadings helper dropped
the `bracketId && ` guard both original inline loops carried before
calling isSentinelPhaseId. Every other isSentinelPhaseId call site in
src/ (roadmap-parser.cts, roadmap.cts, validate.cts x2, verify.cts)
keeps the guard; state.cts's shared counter was the only one of seven
without it.

When the phase-heading-intro grammar's LEGACY alternative matches (a
`### Phase 00:` heading in a `phase_id_convention: "bracket"` repo —
the mid-migration shape this PR exists for), the bracket capture group
is `undefined`, so the unguarded call became
`isSentinelPhaseId("undefined-00", 'bracket')` — measured TRUE, so
phase 00 (and 000, 0a, 0.5, 999.1 — any token whose splice with the
literal string "undefined" happens to fall in a sentinel range) was
silently dropped from the denominator. `getMilestonePhaseFilter` (which
still carries its own guard) counts the phase and admits its directory
regardless, so the filter and the counter disagree — a half-done
milestone reads as 100% complete, persisted.

One-line fix, restoring the guard every sibling call site already has:

    if (bracketId && isSentinelPhaseId(`${bracketId}-${token}`, 'bracket')) continue;

Line count: `git diff --stat src/state.cts` -> 1 file changed, 1
insertion(+), 1 deletion(-).

Tests: new describe block "#612 PR-2 round-5 Blocker 1:
countRoadmapPhaseHeadings restores the bracketId guard" — RED-turned-
GREEN for G3 (3/2/67, was 2/2/100) and G3d (the mixed bracket+legacy
mid-migration shape, same numbers) with syncedTotal()/syncedPercent(),
PIN for G3's legacy control (unaffected), PIN for G3b (isolates the
counter with no directory to admit), PIN for G3c (legacy 01/02 only,
no sentinel-shaped token present).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 957/957 pass (952 + 5 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): extractRetiredPhaseNumbers is fence-aware on the bracket path (round-5 Major 1)

Gate-2 round-5 re-verify Major 1 (NEW) — a FIFTH fence-blind site on
the bracket path, missed by 3be5c412's own enumeration of "four".
extractRetiredPhaseNumbers' line scan (`scope.split(/\r?\n/)`) has no
fence awareness. This PR compiles the bracket alternative into
`introSrc` ("the retirement filter has to widen with the counter it
protects" — the function's own pre-existing comment), so a FENCED
authoring EXAMPLE showing the #1514 retirement gesture in bracket
spelling is now indistinguishable from a real one: it retires a
genuine phase, shrinking the denominator and persisting a confident
100% where base correctly read 50%.

Fixed with the SAME consumer-level ruling this arc has used at every
other fence-blind site, reusing markdown-sectionizer's existing
exported `stripFencedCode` rather than hand-rolling a second fence
parser (single-owner rule) — retirement lines are BULLETS, not
headings, so `tokenizeHeadings` doesn't serve here; `stripFencedCode`
is the general-purpose fence stripper the tokenizer itself is built on.
Gated on `convention === 'bracket'`; the LEGACY line scan stays the raw
`scope` string, byte-identical — its own fenced-example hazard is
pre-existing (wrong at base too) and out of scope.

Line count: `git diff --stat src/state.cts` -> 1 file changed, 9
insertions(+), 2 deletions(-) — one import added, four lines inside
the function (a comment + the `scanScope` computation + the changed
`.split()` call).

Tests: new describe block "#612 PR-2 round-5 Major 1:
extractRetiredPhaseNumbers is fence-aware on the bracket path" —
RED-turned-GREEN for G2 (fenced example in the preamble) and G2b (the
same example placed INSIDE the milestone section, ruling out a
preamble-scoping artifact — the site itself was fence-blind wherever
the fence sits), PIN for the LEGACY control (unchanged, pre-existing,
out of scope — base is wrong on this shape too).

Also folds in the "four fence-blind sites" correction: 3be5c412's
commit message and any restatement of it should read FIVE going
forward; this commit's own message states the count correctly.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 960/960 pass (957 + 3 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): state sync's counter excludes the bracket 999 icebox token (round-5 Major 2)

Gate-2 round-5 re-verify Major 2 (NEW) — `includeUnconditional999Check`
left `state json` and `state sync` reporting different totals for one
bracket repo. Under bracket, READING-B puts the sentinel in the
bracket, so `isSentinelPhaseId("GSD.02-999", 'bracket')` is false —
the `/^999\b/` TOKEN rule is the only thing excluding a
`### [GSD.02] 999:` icebox heading, and it ran on the read path
(buildStateFrontmatter, `true`) and on getMilestonePhaseFilter
(unconditional), but not on cmdStateSync's own counter (`false`). One
`state sync` call could leave a single STATE.md with its own
frontmatter (percent 50, from the read-path re-sync inside
writeStateMd) and body (percent 33, from the write-path counter that
alone still counted the icebox heading) disagreeing — falsifying this
PR's own stated invariant that sharing countRoadmapPhaseHeadings made
"the two counters must see the same phases" structural.

Functional change is one argument, exactly as specified: the write
call site now passes `syncConvention === 'bracket'` instead of the
literal `false`. `syncConvention === 'bracket'` is `false` for every
non-bracket value, so the LEGACY path resolves to the exact same
`false` it always did — this file's own pre-existing, deliberately-
unchanged read/write divergence on that path is untouched. The READ
site (`:1860`) is NOT touched — its historical behaviour applied
`/^999\b/` to legacy and bracket alike, so changing it would move
legacy READ totals, exactly the class of mistake this arc's own
Blocker 1 (this round) was.

Line count: the functional change is ONE argument
(`false` -> `syncConvention === 'bracket'`); the surrounding comment
was rewritten because the previous one asserted the now-superseded
behaviour ("preserving this file's pre-existing... divergence... a
bare 999 token is not excluded here") and leaving it would mislead the
next reader — not a structural change.

Tests: new describe block "#612 PR-2 round-5 Major 2: state sync
excludes the bracket 999 icebox token like the read path" —
RED-turned-GREEN for G1, asserting `state sync`'s body percent equals
`state json`'s own percent (both 50, not 33 vs 50), PIN for G1's
legacy control (33 vs 50 unchanged, deliberately).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 962/962 pass (960 + 2 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): restore indent parity at the two line-start-anchored bracket-heading reconstructions (round-5 Minor 1)

`HeadingToken.offset` (tokenizeHeadings) is the LINE-START character offset,
not necessarily the `#` character's own offset — a ≤3-space-indented ATX
heading has both. Two round-4 reconstructions built on tokenizeHeadings
inherited this gap and accepted indented headings their raw, line-start-
anchored predecessors (`^#{1,3}\s+\[...`) never matched:

  1. roadmap-parser.cts's bracket-fallback SELECTOR (extractCurrentMilestone,
     ~line 377) — an indented, version-less `[GSD.02]` milestone heading
     could be reconstructed into headingMatches, then mis-parsed downstream
     (selectedBracketId null, level fallback to 1), leaking a SIBLING
     milestone's phases into the counted scope (G6: HEAD read 3/2/67 instead
     of 2/1/50 — a real phase heading's own directory belonging to the NEXT
     milestone got counted).

  2. state.cts's isMilestoneBounded (~line 1571) — the same gap let an
     indented-only `[GSD.02]`-shaped heading wrongly bound a milestone
     absent from the roadmap, un-suppressing a percent that should stay
     suppressed (mirrors round-4's F12 fenced-only case, but via indentation
     instead of a fence).

Fix: one added conjunct per site — `content[h.offset] === '#'` (source-named
`roadmapRaw` in state.cts) — filtering to tokens whose LINE-START offset IS
the `#` character, i.e. exactly the set the raw line-start-anchored regex
would ever have matched. Restores byte-for-byte raw parity; no other logic
in either function changes. computeSectionEnd and the preamble version/
emoji-token scan are untouched, as instructed — they consumed tokenizeHeadings
output before this arc and are out of scope here.

Also corrects roadmap-parser.cts's now-provably-false docstring claim that
`h.offset` is unconditionally "the same `#`-character coordinate space
`content.match().index` used" — true only for the survivors of the new
filter, not for every token tokenizeHeadings produces.

Line count: the FUNCTIONAL change is exactly 2 lines (one added `&&` conjunct
per call site — `git diff --stat` on the two source files shows 20
insertions/7 deletions, but only those 2 lines change behavior; the rest is
docstring/comment rationale, per this round's "state the line count" ask).

TDD: both fixtures verified RED at HEAD before this commit, GREEN after,
via /tmp/pr612rev/rv5-attack.cjs G6 and a locally-authored isMilestoneBounded-
isolating probe (G6 alone doesn't distinguish the two sites — its unindented
phase headings already satisfy isMilestoneBounded's loose prefix regex
either way, so a second, indentation-only fixture was needed to prove that
site's fix is not a no-op; verified by temporarily reverting just that one
conjunct, confirming 100%-wrongly-bounded RED, then restoring it, confirming
suppressed-percent GREEN).

New tests (adr-612-bracket-phase-counting.test.cjs):
  - RED (G6): indented version-less bracket milestone heading — 2/1/50, not
    the pinned-before-fix 3/2/67.
  - PIN (G6c unindented control): identical document, no indent — 2/1/50
    unaffected on every build.
  - RED (isMilestoneBounded site, indented-ONLY): mirrors round-4's F12
    shape (fenced-ONLY → indented-ONLY) — percent stays suppressed instead
    of the pinned-before-fix wrongly-bounded 100%.

Full G1-G10 (rv5-attack.cjs) + G2b/G3c/G3d/G6c (rv5b.cjs) re-verified
zero-drift against TRUTH after this change. Targeted suite (adr-612-*,
roadmap-parser, state, verify): 962 -> 965 (+3), 0 fail.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): changeset discloses counting-set narrowing + correct stale consumer-count sentence (round-5 minors)

FIX 5 (Minor 2): .changeset/2761-bracket-read-tolerance.md did not disclose
that bracket phase-heading counting is narrower than the raw-regex
predecessor in two ways the review's G4/G5 fixtures surfaced: a level-5
heading (`##### [GSD.02] 05: ...`) is no longer counted (the counter's
tokenizeHeadings scan caps at level 4, matching the selector/isMilestoneBounded
ceiling), and a space-less heading (`###[GSD.02] 05: ...`) is no longer
counted (CommonMark requires ≥1 space/tab after the hashes, which
tokenizeHeadings correctly enforces and the old raw regex did not). Both
G4 and G5 moved from round-1's wrong (inflated) values back to base's
original values as an incidental side effect of routing through
tokenizeHeadings — never a deliberate feature of this PR, and previously
undocumented. One clause added to the existing run-on paragraph; no other
wording in the changeset touched.

FIX 6 (Nit 1): tests/adr-612-bracket-heading-selection.test.cjs:76 —
`BRACKET_PHASE_TAIL_RE` has TWO consumers as of round-4's 65d257ce
(isBracketMilestoneBoundary's own use, plus bracketHeadingHasMatchingChild's
same-id-PHASE-child conjunct), not the "no other consumers" the comment
claimed. Same correction pattern round-4 already applied to this row's
BRACKET_HEADING_INTRO_RE neighbor (that sentence's own staleness was fixed
in 4d7184b8): note the true consumer count, confirm both stay nested inside
the same bracketBoundaryActive runtime gate (verified at
src/roadmap-parser.cts:178 and :250, both reached only through the
`if (bracketBoundaryActive)` block starting at :529), and record which
commit and which fix introduced the drift. Comment-only; no assertion
logic changed.

Line count: 2 files, 8 insertions / 2 deletions total — one added clause
in the changeset (1 line changed) and one comment block replacing the
single stale line in the test file (6 comment lines replacing 1).

Verified: targeted suite (adr-612-*, roadmap-parser, state, verify)
unchanged at 965/965 pass (comment/prose-only diffs, no test count change).
`node scripts/changeset/lint.cjs` and `npx eslint` on the touched files both
clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): restore the bracketId guard on the bracket-only /^0\b/ sibling rule (round-6 Blocker 1)

Round-5's Blocker 1 was `isSentinelPhaseId("undefined-00")` — the merge
that introduced the shared counter dropped the `bracketId &&` guard on the
sentinel check. This is the identical failure one line further down, in the
sibling rule this PR itself added: when the phase-heading grammar's LEGACY
alternative matches (`### Phase 0:` in a `phase_id_convention: "bracket"`
repo — the mid-migration shape this PR exists for), `bracketId` is
`undefined`, and the unguarded `/^0\b/` fires on the bare token anyway.
Neither the LEGACY branch of this same function nor
`getMilestonePhaseFilter` has a `/^0\b/` rule at all, so the filter counts
the phase and admits its completed directory while the counter refuses to
count its heading — a milestone with an unstarted phase 02 persists as a
confident 100%.

`/^0\b/` matches `0` and `0.5` (word boundary before the `.`) but not `00`
(no boundary between the two zeros), which is exactly why round-5's G3/G3d
fixtures (`### Phase 00:`) never tripped this one — same defect class,
different token spelling.

Fix: one word, mirroring the guard round 5 restored two lines above —
`if (/^0\b/.test(token)) continue;` -> `if (bracketId && /^0\b/.test(token)) continue;`.

Expected and intentional side effect: `roadmap analyze` and `state json`
now disagree again on this bracket-repo shape (analyze phase_count=2, json
total_phases=3) — exactly as they already do under the legacy convention
today (verified via /tmp/pr612rev/rv6c.cjs on both conventions). That is
the counter regaining agreement with `getMilestonePhaseFilter` (the tighter
constraint — it is what actually decides `completed_phases`), not a new
break; the counter/filter disagreement is what was wrong.

Out of scope, deliberately NOT fixed here (Minor 1, disclosed via a PIN
test only): the bracket-SPELLED `### [GSD.02] 0:` shape has the same
counter/filter disagreement, but reads 2/2/100 on base too — never closed
by any build in this arc, so it is a pre-existing gap rather than a
regression this commit could introduce.

Line count: src/state.cts is exactly 1 insertion / 1 deletion (one word,
`bracketId && ` prepended to the existing condition).

TDD: T0 (`Phase 0:`) and T05 (`Phase 0.5:`) verified RED at HEAD before this
commit (json 2/2/100, sync body 100%) via /tmp/pr612rev/rv6b.cjs, GREEN
after (3/2/67 on both derivations, matching TRUTH). Zero-drift verified by
diffing the FULL corpus (rv5-attack, rv5b, rv4-attack, rv-attack1,
rv-attack1b, rv-attack3c, rv-mech1, rv2-amend1, rv2-amend2, rv6-attack
H1-H19, rv6b) between a pre-fix and post-fix build: the only differing
lines in the entire diff are T0, T05, and H14 — the three target fixtures.

New tests (adr-612-bracket-phase-counting.test.cjs):
  - RED (T0) + PIN (T0L legacy control)
  - RED (T05) + PIN (T05L legacy control)
  - PIN (B0, bracket-spelled `0` — base-parity characterization, Minor 1,
    not fixed this round)
  Round-5's own G3 test (`### Phase 00:`) already serves as the T00 pin —
  `/^0\b/` never matched `00`, so it is unaffected and untouched.

Targeted suite (adr-612-*, roadmap-parser, state, verify): 965 -> 970 (+5),
0 fail. `lint-phase-id-drift.cjs` and `npx eslint` on touched files clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): changeset re-attributes the phase-count level cap + discloses the bare-0 carve-out; correct two stale test comments (round-6 Minor 1 + Nits)

FIX 2 (Minor 1 — disclosure only, NOT a code fix): the bracket-SPELLED
`### [GSD.02] 0:` / `0.5:` shape has the same counter/filter disagreement
round-6's Blocker fixed for the legacy spelling, but it reads 2/2/100 on
BASE too — never closed by any build in this arc, so it is a pre-existing
gap rather than a regression this round could introduce. Two changes:

  - Pinned as a base-parity characterization: new PIN test (B0) in
    04b5a95f's describe block asserting the exact unchanged value with a
    comment stating why it's deliberately not touched.
  - .changeset/2761-bracket-read-tolerance.md: one qualifying clause added
    to the "counted from ALL of the phases … not a subset" sentence — a
    bare `0`/`0.x` phase token (however spelled) keeps `roadmap analyze`'s
    own pre-existing sentinel reading under bracket too, so it stays
    excluded from these counts. Carried over, not newly introduced by this
    PR — `roadmap analyze` has always read it this way.

FIX 3(a) — same changeset paragraph misattributed the phase counter's
2-4 level cap to "the milestone-boundary machinery in this PR" (the
selector, `isMilestoneBounded`, the preamble scan) — that machinery caps
at `###` (level ≤3), not 2-4. The 2-4 cap belongs to
`getMilestonePhaseFilter`'s own phase scan. Re-pointed the attribution;
the paragraph's earlier, correct ≤3 claim (selector/isMilestoneBounded)
is untouched.

FIX 3(b) — tests/adr-612-bracket-heading-selection.test.cjs:76-82 (added by
1395bd89, round-5's own Nit-1 correction) claimed both
`BRACKET_PHASE_TAIL_RE` consumers are reached "only through the
`if (bracketBoundaryActive)` block starting at :529". Verified at HEAD:
`bracketHeadingHasMatchingChild` is (only caller :593, inside that block).
`isBracketMilestoneBoundary` is not — it has two callers, an inline
`bracketBoundaryActive &&` conjunct at `:473` (inside `computeSectionEnd`)
and the `:529` block at `:567` — the very fact this row's own earlier
"exactly two callers" paragraph already stated correctly. Corrected the
mechanism claim; the CONCLUSION (every consumer is still gated on the same
flag) is unchanged, exactly as round-5's own Nit-1 fix left round-4's
conclusion unchanged when it corrected the consumer count.

FIX 3(c) — tests/adr-612-bracket-phase-counting.test.cjs:2311,2340 still
said "four fence-blind sites" after round-5 (357ba671) added a fifth
(the retirement scan) in its own block below. Reworded both the section
comment and the `describe()` label to read as historical scoping of
round-4's own fix ("the four sites known at round 4 … a fifth was found at
round 5, see its own block below") rather than a live exhaustive claim.

Line count: 3 files, changeset 1/1, heading-selection test 17/8,
phase-counting test 6/2 (comment/prose-only; B0's own PIN test landed in
04b5a95f alongside T0/T05 since it was investigated as part of that same
Blocker's defect class, not in this commit — noted here for the record).

Verified: targeted suite (adr-612-*, roadmap-parser, state, verify)
unchanged at 970/970 (comment/prose-only diffs, no test count change).
`npx eslint` and `node scripts/changeset/lint.cjs` both clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): W021's bracket remediation hint stops pointing at a command that hard-errors (round-7 Minor 2)

`checkBracketCoherence`'s W021 (added by 94abf5df) attached the fix hint
`Run \`gsd-tools roadmap upgrade --convention bracket\` to migrate
(dry-run by default)` to every bracket-convention W021 — both sub-checks
(`missing-bracket` and `mismatch`) share the single `addIssue` call at
src/verify.cts:2255-2256. But `roadmap-command-router.cts:204` throws
unconditionally for any `--convention` value other than
`milestone-prefixed`:

  $ gsd-tools roadmap upgrade --convention bracket
  Error: Only --convention milestone-prefixed is supported

This contradicts the PR's own two disclosures: the changeset ("`bracket`
is a READ-path opt-in until the migrator and write path land") and
docs/CONFIGURATION.md:188 ("There is no bracket migrator and no bracket
emit yet"). Reachability is the exact mid-migration repo this PR targets —
any bracket project with one un-migrated heading gets an unfollowable
instruction on every `validate health`.

Fix: one string. Replaced the hint with what a user can actually do today —
manually align the heading's bracket milestone to its section — and named
the tracked future landing (#612 PR-3) instead of a command that errors.
The milestone-prefixed sibling hint at src/verify.cts:2240 (a different,
already-functional convention/command pair — verified against
roadmap-command-router.cts:65) is untouched.

Line count: src/verify.cts is exactly 1 insertion / 1 deletion (one string
literal).

No test in the suite previously asserted this string's content
(`grep -rn "upgrade --convention bracket" tests/` was empty), so the
unfollowable hint shipped unpinned — `lint-fix-has-regression-test.cjs`
would not have caught a string-only change without a new test. Added one:
asserts the fix string both (a) does not match `--convention bracket`
(the specific pinned-before-this-fix hazard) and (b) equals the new string
exactly, covering the invariant a future edit must not re-break: no
unsupported `--convention` value named in remediation text users are
expected to run verbatim.

Verified end-to-end (not just unit-level) via /tmp/pr612rev/rv7f.cjs: the
W021 issue's `fix` field now reads the new string; `gsd-tools roadmap
upgrade --convention bracket` (and its --dry-run variant) still correctly
hard-error — that command remains unsupported, only the hint text changed.

Targeted suite (adr-612-*, roadmap-parser, state, verify): 970 -> 971 (+1),
0 fail. `lint-phase-id-drift.cjs` clean; `npx eslint` on touched files:
0 errors (1 pre-existing unrelated no-elapsed-assertion warning, same file,
same line this arc's prior rounds already disclosed).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): correct the bare-0 changeset disclosure + disclose W021's second sub-check (round-7 Minor 1 + Nit 1)

FIX 1 (Minor 1) — round-6's bare-0 changeset clause (1395bd89) was wrong in
three falsifiable ways:

  (a) Its own illustration (`### Phase 0:`) is exactly the LEGACY spelling
      04b5a95f made COUNTED. The residual exclusion after that fix applies
      only to the BRACKET-spelled token (`### [GSD.02] 0:`) — the clause
      named the wrong shape as its example.
  (b) "excluded from these counts" over-scoped the carve-out. The phase-0
      directory is admitted into `completed_phases`/`total_plans` in BOTH
      spellings (measured: B0 at HEAD has `completed_phases=2`,
      `accepts {"GSD.02-0-bootstrap":true}`). The exclusion that survives
      lives in `total_phases`/`phase_count` (heading counting) only.
  (c) The pre-existing "so `roadmap analyze` and `state json` report the
      same number" sentence (present since before this arc's bracket work)
      is now false for the bare-0 LEGACY-spelled shape: 04b5a95f's own
      commit message discloses this exact re-divergence as expected —
      `roadmap analyze` phase_count=2 vs `state json` total_phases=3 on T0
      — matching the disagreement legacy already carries today. The
      changeset still asserted unconditional agreement.

Rewrote both sentences: dropped the `### Phase 0:` example, scoped the
carve-out to `total_phases`/`phase_count`, named the bracket-spelled token
as the one that keeps analyze's sentinel reading, stated plainly that the
legacy-spelled form in a bracket repo IS counted (the mid-migration guard),
and qualified the "report the same number" claim to the `999` token, with
the bare-0 legacy-spelled shape named as the one exception and why.

FIX 3 (Nit 1) — `checkBracketCoherence` has always had two sub-checks
(its own docstring: "Two sub-checks, both surfaced as W021") but both the
changeset and docs/CONFIGURATION.md:188 described only the `mismatch`
sub-check. The `missing-bracket` sub-check — which fires on every
legacy-spelled heading in a bracket repo, the noisier of the two on a
mid-migration project — was undisclosed in both places. One clause added
to each.

Line count: 2 files, 1 line changed each (both are single-paragraph/
single-row files; git diff --stat reports 1/1 per file though several
distinct clauses were edited within that one line each).

Verified: `node scripts/changeset/lint.cjs` clean. Targeted suite
(adr-612-*, roadmap-parser, state, verify) unchanged at 971/971
(prose-only diffs, no test count change, no code touched).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): resolvePhaseIdConvention's docstring no longer claims loadConfig drops the key

Upstream #2997 (aa7697fe, landed in `next` during this PR's final
verification) added `phase_id_convention: get('phase_id_convention') ?? null`
to `_baseConfig` in config-loader.cts — `loadConfig` now surfaces
`phase_id_convention` in its resolved config. This function's docstring
gave "loadConfig merges against CONFIG_DEFAULTS and drops keys it does not
know, and `phase_id_convention` is not among them" as the reason for
reading config.json directly instead of calling `loadConfig(cwd)`. That
rationale is now stale against live `next`.

Corrected the comment to state the two reasons that actually survive #2997:

  1. The workstream->root federation this function performs is a standalone
     resolution run against a GIVEN cwd, not necessarily the same base a
     `loadConfig(cwd)` call elsewhere in the codebase would federate from.
  2. Convention-ENUM validation is still #612 PR-4 work — this function
     returns the raw string unvalidated, exactly as the now-surfaced
     resolved key would.

Noted that #2997 surfacing the key makes consuming it from resolved config
(instead of re-reading config.json here) a natural PR-4 consolidation —
not this PR's scope. The "cycles were never the obstacle" close and every
other paragraph in the docstring (federation rationale, SCOPE note) are
untouched; they still hold.

Comment-only — no code behavior changed. This worktree's own history does
not contain aa7697fe (git merge-base --is-ancestor confirms neither branch
is an ancestor of the other; not rebasing per instruction), so this is a
textual correction against a documented external fact, not a functional
sync with upstream.

git diff --stat:
 src/planning-workspace.cts | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

Verified: `npm run build:lib` clean, `node scripts/lint-phase-id-drift.cjs`
clean, `npm run lint:ci` exit 0 (same 2 pre-existing unrelated eslint
warnings as every prior round this arc, 0 errors; lint-fix-has-regression-test
PASS). Full suite not re-run per instruction (comment-only diff).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): resolve phase_id_convention against the caller's workstream

`resolvePhaseIdConvention` took no workstream, so it resolved from
`planningDir(cwd)` — which falls back to `GSD_WORKSTREAM` only when its `ws`
argument is `undefined`. Every caller that passes a workstream by ARGUMENT
(they cannot set the env var per iteration) therefore read the convention from
the ROOT config while reading that workstream's ROADMAP.

Two reproduced consequences:

- A workstream that explicitly declares its own `phase_id_convention` had it
  ignored. Flipping ONLY the root config between bracket and milestone-prefixed
  changed which milestone that workstream extracted.
- `--workstream foo` and `GSD_WORKSTREAM=foo` disagreed on the same repo: the
  arg form fell through to the root config, the env form did not.

`resolvePhaseIdConvention(cwd, ws?)` now forwards `ws` to `planningDir`, and
both roadmap-parser call sites pass theirs — `extractCurrentMilestoneScoped`
(which already reads STATE from `planningDir(cwd, ws)`) and
`getMilestonePhaseFilter`'s lazy branch. `undefined` keeps the env fallback, so
convention-less call sites are byte-identical; `null` still means "explicitly no
workstream". The `undefined` vs `null` discriminator on `phaseIdConvention` is
untouched — only the base the `undefined` branch resolves FROM moves.

workstream-inventory's two sites (`countRoadmapPhases`, `inspectWorkstream`)
passed a literal `null` where they meant `undefined`, pinning every workstream
to the legacy grammar. On a bracket workstream whose milestone declares 3
phases that returned phaseCount 0 and fell back to the on-disk directory count;
it now returns 3. A non-bracket workstream is unchanged (legacy control pinned).

The workstream -> root federation is preserved: a workstream that declares no
convention still inherits the root, as config-loader does. That inheritance is
pinned so the fix cannot be over-applied into isolation.

* fix(#2761): classify missing phase details per occurrence, not per token

Under READING-B a phase's sentinel status lives in the BRACKET, so
`[GSD.999] 01` and `[GSD.02] 01` share a token and are not the same phase.
Both sides of the missing-detail check were keyed by the bare token anyway, and
both produced false negatives in `missing_phase_details`:

- The checklist scan built a token -> bracket-id Map, FIRST-WINS. Of two entries
  sharing a token, whichever the author wrote first classified both. With
  `- [ ] **[GSD.999] 01: Icebox**` above `- [ ] **[GSD.02] 01: ...**` the real
  phase inherited the icebox's sentinel verdict and vanished from the report;
  swapping the two bullets — same document, same phases — reported it. Pinned
  with a test asserting BOTH orders.

- The detail set was `new Set(phases.map(p => p.number))`, also token-keyed, so
  `[GSD.02] 01`'s heading marked token `01` present and satisfied
  `[GSD.03] 01`, which has no heading anywhere. Order-independent, same class.

Both sides now key on an occurrence key: the owner's `bracketQualifiedKey`
(fold- and padding-insensitive, so `[gsd.2] 01` and `[GSD.02] 01` are one
phase), falling back to a fold-normalized composite for the two shapes that
grammar refuses — a token carrying its own hyphen, which splices to an id whose
trailing segment the qualified-key grammar truncates (the hazard
`getMilestonePhaseFilter` guards with its own `!token.includes('-')`), and any
id it does not accept. With no bracket id the key IS the bare token, so the
legacy path keeps its exact keys and dedupe order.

The emitted value is unchanged — `missing_phase_details` stays an array of bare
tokens, matching `phases[].number`. Only the classification moved to the
qualified key, so two brackets' `01` both missing report `01` once instead of
one silently covering for the other.

* test(#2761): replace the two wall-clock ReDoS assertions with algorithmic bounds

Both guards asserted elapsed wall-clock time — `Date.now()` against a 20s
ceiling in the coherence suite, `process.hrtime.bigint()` against 1s in the
read-tolerance suite. Those measure the host machine rather than the SUT and
flake on a loaded CI runner (RULESET.TESTS.no-timing-assertion). Per
RULESET.TESTS.delete-bad-tests they are REPLACED, not skipped, and the
behavioral property each one guarded is preserved.

The property is "the widened bracket patterns do not backtrack
catastrophically", which is a claim about growth, so it is now stated by
scaling the input instead of by timing it:

- validate health runs the pathological unclosed bracket at 4,000 and 16,000
  characters and must return the same correct result (no W021) at both.
- The four reader entry points run five ReDoS shapes at 5,000 and 20,000 and
  must name exactly the phases each shape should name at each size, with the
  variant cardinality unchanged across the two.

Catastrophic backtracking is superlinear, so a regression cannot complete the
4x leg under any ceiling, while a bounded matcher is indifferent to the
scaling. The one attack that is well-formed-but-oversized now pins its reading
precisely (`['1'.repeat(n)]`) rather than being lumped in with the malformed
ones. A positive control asserts the readers still extract a well-formed
bracket heading, so "names no phase" cannot pass by the readers being inert.

`{ timeout }` is a hang backstop, not an assertion: it turns a runaway into a
deterministic failure instead of a suite that never returns.

* fix(#2761): give the bracket grammar one owner and teach the drift guard to see it

The bracket milestone-intro grammar was re-typed verbatim in three readers —
roadmap-parser's bracket-fallback selector, state's `isMilestoneBounded` and
verify's `checkBracketCoherence` — which is exactly what #2761's own gate
forbids ("no token literal outside src/phase-id.cts"). `check:phase-id-drift`
reported clean the whole time: its detector only ever knew the phase-NUMBER
token grammar, so the bracket class `[A-Z][A-Z0-9_]*` was invisible to it.

Ownership. `src/phase-id.cts` now exports the class as
`BRACKET_PROJECT_CODE_SRC` and the intro in the two shapes its readers need:
`bracketMilestoneIntroSrcFor(milestone)` (pinned to one milestone) and
`BRACKET_MILESTONE_INTRO_CAPTURING_SRC` (milestone captured). The pinned
builder owns the pad2 spelling rule too — "canonical spelling only, not `0*N`"
was previously restated in prose beside each copy, a convention two files had
to keep agreeing on by hand. `BRACKET_ID_SRC`, `BRACKET_ID_PREFIX_RE` and
`BRACKET_QUALIFIED_KEY_RE` now compose the class rather than re-spelling it.
All three call sites consume the owner; the regex sources are byte-identical to
what they spelled, asserted against hand transcriptions of the pre-fix lines.

Guard. `scripts/lint-phase-id-drift.cjs` gains a bracket rule
(`findBracketGrammarDrift`), wired into `scanRepo` and tagged `kind`. It
deliberately does NOT copy the token rule's `line.includes(CANON_REF)` escape:
that escape is line-level, and verify's copy referenced the owner for the
MILESTONE field on the same line as the re-typed PROJECT-CODE class — so a
bracket rule with that escape would have kept passing on the very site under
review. Partial ownership is the drift; only a dedicated `// phase-id-owner:`
comment suppresses it.

Proof, end to end: planting the shipped verify.cts literal back into src/ makes
`npm run check:phase-id-drift` exit 1 naming `[bracket] src/verify.cts:1475`;
restoring it returns the gate to ok.

Tests. phase-id-drift-guard carries all three shipped literals as negative
fixtures, the same-line-owner-reference case, the case-widened evasion variant,
the sanction rules, and a temp-tree scan proving the rule is wired into
scanRepo rather than merely exported. continuation-grammar-parity drives the
pinned and capturing shapes over a 12-entry corpus and requires the same
verdict from both plus the same captured milestone — widening either alone
fails there.

* test(#2761): drop the out-of-scope source-grep exemption from the selector pin

The baseline-selector pin in tests/adr-612-bracket-heading-selection.test.cjs
read `src/*.cts` with readFileSync and regex, claiming the no-source-grep
escape with a source-text-is-the-product reason. CONTEXT.md's documented scope
(RULESET.TESTS.no-source-grep.exemption) reserves that escape for tests whose
subject is a runtime CONTRACT FILE — STATE.md, config.toml, hooks.json, agent
.md — and `src/*.cts` is none of those.

It was also broader than it looked: eslint-rules/no-source-grep.cjs matches the
marker in ANY comment in the file, so one block's claim disarmed the rule for
the whole ~700-line suite.

The pin itself is worth keeping — the BASELINE ARGUMENT at each call site is a
fact no behavioural test can recover (flipping verify's milestone-complete site
from LABEL_ONLY to ANY_BRACKET grants a tolerance it has never had, and every
behavioural test still passes), so pinning it does require reading the authored
source. That reading moved to `scripts/lint-phase-id-drift.cjs` — the seam's
own guard, where source scanning is sanctioned (`warn` scope) and already
happens for the grammar rules — as `countSelectorBaselines` /
`scanSelectorBaselines`, which return a structured census. The test asserts on
the returned data and touches no file text.

CONTEXT.md is unchanged: the exemption scope was not widened to fit the test.
No marker remains in the suite, so the rule is live across all of it again, and
eslint passes with the escape removed rather than relocated. A floor assertion
pins that the census actually found the five consumers, so the "no other file
consumes the selector unpinned" check cannot pass on an empty scan.

* docs(#2761): rewrite the changeset as a lead + deltas instead of one paragraph

The fragment was a single ~6,400-character paragraph that opened on internal
mechanics, buried the user-visible change, and named an internal test path
(tests/adr-612-bracket-phase-counting.test.cjs) that means nothing to a reader
of the CHANGELOG.

It now leads with what a user sees — bracket-style phase IDs are recognized on
the read path across roadmap, validate, verify and state — followed by compact
bullets for the behavioral deltas, the opt-in caveat, and the upstream
consequences. Both merge-added disclosures are kept: the #3185 legacy-sentinel
Phase-0 delta with the reason the bracket counter keeps the narrower rule, and
the enumerator's convention-argument default flip with the four newly-scoped
read surfaces and the note that archival and milestone-completion paths are
unchanged. Two deltas from this review round are stated as their own bullets:
per-occurrence classification in `missing_phase_details`, and workstream-scoped
convention resolution including the workstream-rollup count change.

The internal test path is gone and the body is down to ~3,850 characters. The
bullets render as sub-bullets under the CHANGELOG entry and the `(#NNNN)`
suffix still lands on a trailing paragraph rather than mid-list.
`npm run lint:changeset` passes.

* test(#2761): use helpers.cleanup in the drift-guard temp-tree test

`local/no-raw-rmsync-in-tests` rejects a bare `fs.rmSync` in tests — the shared
helper carries the Windows-EBUSY retry budget. The temp-tree scan added with
M3's guard coverage test used the raw call.

* docs(#2761): correct the occurrenceKey comment on qualified-key normalization

The comment claimed `bracketQualifiedKey` is "fold- and padding-insensitive, so
`[gsd.2] 01` and `[GSD.02] 01` are one phase". The fold half is right; the
padding half is not. `BRACKET_MILESTONE_NUMERIC_SRC` is `(?:[1-9]\d{2,}|\d{2})`,
so `bracketQualifiedKey('GSD.2-01', 'bracket')` returns null and that input
takes the composite fallback instead.

No behavior change — the two key spaces use different separators and cannot
collide — but the claim was checkable and wrong. Restated: the owner case-folds,
and padding-tolerance is not a property it has or needs, because each accepted
milestone has exactly one canonical spelling and `[GSD.2]` is malformed rather
than an alternate spelling of `[GSD.02]`.

* ci(#2761): give the coverage-gate job the heap floor the shard jobs already have

The gate's report steps parse ~2.5GB of merged raw V8 dumps in one
process at the runner's implicit ~4GB ceiling, so pass/fail comes down
to GC timing (run 31338081337 OOM'd; next passes the same volume at
28s). Deterministic locally: crashes at --max-old-space-size=4096,
completes in 11s at 8192. PR shard data is within 0.15% of green next
runs — the load is pre-existing, only the ceiling was missing. #2952
set 6144 on the shard-collection step; the gate job was missed.

* Revert "ci(#2761): give the coverage-gate job the heap floor the shard jobs already have"

This reverts commit 03c74a97c911e9ddc53675aded9c9bbb89f14cd1.

* fix(#2761): thread the resolved convention into cmdStateValidate's phase-directory lookup

#3208 replaced cmdStateValidate's `startsWith` prefix test with the canonical
`phaseKeyFromDir(...) === selectedPhaseKey` comparison. That is the right
surface, and it is why the lookup now needs the resolved `phase_id_convention`,
which the rewrite does not pass.

`phaseKeyFromDir` deliberately refuses to read a bracket directory without an
explicit signal (ADR-2121: a bracket dir is string-indistinguishable from the
legacy letter-prefixed-decimal family), so un-threaded it returns the whole dir
name as the key — `GSD.02-05-real-work` -> `GSD.02-5-REAL-WORK` — while the
STATE side is the bare `05` that `parsePhaseFromProse` yields. Both sides of one
comparison derived under different conventions is #2562's defect class, and this
file's other three `phaseKeyFromDir` call sites already thread against it.

Observable: a bracket repo whose phase directory plainly exists reported
`valid: false` and "no phase directory matches phase 05", and the drift scan
(plan-count mismatch, verification status) never ran. The pre-#3208 `startsWith`
missed the same directory but skipped silently, so this is a visible-failure
regression on bracket repos, not a new miss.

Non-bracket conventions are byte-identical by construction: `extractPhaseToken`
branches only on `=== 'bracket'`, so null / 'milestone-prefixed' / unresolvable
compile the same path as the un-threaded call. The flat-legacy twin assertion
pins that.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#2761): note the cmdStateValidate convention threading in the changeset fragment

The fragment described the bracket read path as of the pre-merge branch. 504c64ff
added a shipped behaviour change — `state validate` now resolves bracket phase
directories — that the fragment did not mention, so the rendered changelog would
have under-described what ships.

Body text only; `type` and `pr` are untouched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): invert the inherited-wart characterization — #3225 fixed it upstream

Required by the merge of next @ 86101ee6; test-only, no src delta.

This branch disclosed rather than fixed a pre-existing upstream wart: on a
LEGACY repo, `### Phase 999:` warned from `validate consistency` while
`validate health` suppressed it — the two verbs contradicting each other.
The case was pinned as a characterization test ("INHERITED WART, unchanged")
precisely so it would INVERT if upstream ever closed it, rather than rot
silently.

ae7dc529 (#3225) closed it, by adding the `isSentinelPhaseId` guard to this
very loop. So the assertion inverted on the merge — as designed. Flipped to
assert the FIXED behaviour rather than deleted: it is the negative-space
proof that this branch's `sentinelPhases` guard never had to grow a legacy
reading of its own, and it reds if a future conflict resolution keeps our
guard while dropping upstream's.

Added a scope control alongside it (a legacy NON-sentinel `### Phase 09:`
with no directory still warns), so deleting the loop outright cannot pass.

Union proven load-bearing in BOTH directions against the merged tree —
neither guard subsumes the other:
  - drop `isSentinelPhaseId(p)` (ours only) -> 1 red, exactly this case.
    Note upstream's own #3225 tests stay GREEN there: they cover the
    disk-side loops (sentinel dir on disk) and the gap-numbering filter,
    not the ROADMAP-side loop. This case is that site's only coverage,
    which is the second reason to keep it rather than delete it.
  - drop `sentinelPhases.has(p)` (upstream only) -> 4 red bracket suites
    (icebox-not-missing, health/consistency agreement, occurrence-aware
    suppression, checklist-index suppression).

tests/adr-612-bracket-read-tolerance.test.cjs 79 -> 80, all green.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): pin the three re-homed W006/W007 reads the merge left unfalsifiable

#3309/#3310 deleted the helpers this PR threaded (collectDiskPhases,
collectDiskPhaseEntries, collectArchivedPhaseDirNames,
forEachArchivedPhaseToken) and rebuilt their reads inside
src/planning-snapshot.cts + src/health-diagnostic-rules/*.cts. The convention
threading moved with them in the merge commit — but a mutation sweep over the
re-homed sites found three where reverting the convention argument changed real
CLI output and NOT ONE existing test went red. The pre-migration sites were
covered indirectly, through helpers that no longer exist, so the coverage did
not survive the relocation even though the behaviour did.

Each case is pinned at the CLI with its flat-legacy twin as the byte-identity
control, plus a non-vacuity control in the opposite direction:

  archivedPhaseTokens      revert -> "Phase 05 in ROADMAP.md but no directory on
  (planning-snapshot.cts)            disk" for a phase whose only directory is
                                     under .planning/milestones/v1.0-phases/
  roadmapPhaseCheckboxes   revert -> "Phase 09 in ROADMAP.md but no directory on
  (planning-snapshot.cts)            disk" for an unstarted `- [ ]` phase
  W007's extractPhaseToken revert -> "Phase GSD.02-77-orphan exists on disk"
  (roadmap-disk-consistency)         instead of "Phase 77 exists on disk"

Red/green: each single-line revert reds exactly its own case and nothing else;
every legacy control stays green in all three runs.

NOT pinned, and disclosed as droppable rather than given an unfalsifiable test:
buildValidPhaseSet's extractPhaseToken(dir, convention) in W002. That rule
unions disk tokens with roadmapDeclaredPhases and archivedPhaseTokens, and any
STATE.md reference a bracket disk token would rescue is already rescued by the
ROADMAP half — probed directly, the argument makes no observable difference. It
is threaded because it restores collectDiskPhases(planBase, convention)'s
derivation exactly, not because a test needs it.

Test-only; revertable independently of the merge commit.

* fix(#2761): three review-lens corrections to the merge resolution

Found by an adversarial pass over the re-homing, none caught by any gate.

1. planning-snapshot.cts — `phaseDirs` goes back to upstream's exact call,
   `listMilestonePhaseDirs(paths.phases, { cwd })`.

   The merge passed the resolved convention explicitly, on the belief it was a
   behaviour-preserving spelling of the lazy default. It is not. The lazy path
   resolves `resolvePhaseIdConvention(cwd, ws)` with this call's `ws`, which
   defaults to `null` — the PROJECT-only reading, no root fallback — while the
   `phaseIdConvention` field is resolved federated (workstream -> root). On a
   workstream repo whose ROOT opts into bracket and whose workstream config
   does not, those answers differ, so the explicit pass silently re-scoped
   `phaseDirs`. No test covered it in either direction (proven: reverting is
   green across all bracket + health-diagnostic + snapshot suites). PR-2 does
   not need that change, so it is dropped rather than kept untested. The
   federation guarantee is still delivered where it is observable — in the
   rules that read `snapshot.phaseIdConvention`.

2. planning-snapshot.cts — `buildRoadmapBracketIncoherencesField` decides
   file-readability BEFORE the convention gate, so `scope` means one thing on
   every repo. Ordered the other way, an absent ROADMAP.md reported COMPLETE on
   a legacy repo and UNREADABLE on a bracket one — the same "nothing to say"
   state wearing two scopes, which is exactly the non-answer/answer distinction
   ADR-3180 §8.1 gives `scope` to carry. No behaviour change (RULE_W021 does not
   read this scope); it removes an ambiguity a reader of that ADR would catch.

3. roadmap-disk-consistency.cts — `checkW006` reads
   `roadmapSentinelPhaseTokens` without its own scope guard. That is safe
   TODAY because one builder call produces it and `roadmapDeclaredPhases` from
   one `buildRoadmapPhaseVariants` result, so their scopes are yoked; the
   existing COMPLETE check covers both. Stated in a comment instead of left to
   co-location, since an UNREADABLE sentinel set degrades to "nothing is a
   sentinel", which ADDS W006 warnings rather than dropping them.

* test(#2761): pin the two reads the #3165 extraction left unfalsifiable

DROPPABLE, offered as such. Test-only; the merge commit is correct without it.

#3428's extraction gave `collectAnalyzePhases` TWO call sites — the scoped
milestone window and the truncated-window recovery path. The merge threads
`convention` into both and swaps `detailKeys` with `phases` across the recovery.
Neither of those was falsifiable by the suite as it stood:

  - passing a NULL convention at the FALLBACK site, with the scoped site still
    threaded, is green across all 518 tests of the bracket, roadmap and
    milestone-window files. Every pre-existing bracket assertion reaches the
    enrichment through the scoped window, so none of them can observe the
    fallback's reading at all;
  - dropping `detailKeys = fallbackScan.detailKeys;` — the line this merge
    authored — is likewise green, because no fixture that reaches the recovery
    path carries a checklist bullet, so `missing_phase_details` is `null`
    either way.

That is the same hole class lap 3 closed in 9914359c: an argument whose revert
changes real CLI output with zero reds.

Pinned at the CLI on the shape that reaches the fallback on a bracket repo — a
MID-MIGRATION ROADMAP: bracketed ACTIVE milestone, its phase-detail sections
and checklist bullets sitting after an intervening CLOSED legacy milestone (so
the window closes over prose only), plus one legacy `### Phase N:` section of
its own. Six tests:

  - a NON-VACUITY control that removes the phase directories, so #3428's own
    precondition fails and the result is the empty one the recovery exists to
    replace — this is what proves the rest read the FALLBACK's output rather
    than the scoped scan's;
  - the directory assertion (`disk_status`/`plan_count`/`summary_count` for
    canonical `{CODE}.{MM}-{PP}-slug` dirs) + a flat-legacy twin asserting
    byte-equal shape, and that the twin is the right answer rather than a
    shared wrong one;
  - `missing_phase_details: null` for phases the recovery just found, and its
    companion direction — a bullet with no heading anywhere is STILL reported,
    so a fix that merely suppressed the report does not pass;
  - a non-bracket repo taking the same path unaffected.

Red/green, each mutation reverted afterwards:
  - fallback call site -> `null` convention: exactly 2 reds, both directory
    assertions in this block; 307 other tests green, including upstream's own
    #3428 tests in tests/milestone-window-single-owner.test.cjs.
  - `detailKeys` swap deleted: exactly 2 reds, both `missing_phase_details`
    assertions; 414 other tests green.
  - `matchPhaseDirs` 3rd argument dropped (the lap-2 site): 4 reds — the 2
    already on record plus this block's 2, which is the point: one seam, now
    reached by two paths.

DISCLOSED IN THE TEST BODY WITH MEASURED OUTPUT, not fixed: `hasPhaseEntries`
(src/roadmap-parser.cts) is convention-blind, so on a PURE-bracket ROADMAP the
window classifies COMPLETE and #3428's recovery is gated off entirely. That
document returns `{"scope":"complete","phase_count":0,"next_phase":null,
"phases":[]}` — the "genuinely empty milestone" answer, the indistinguishability
#3184 introduced `scope` to remove — where the flat-legacy twin returns
`{"scope":"truncated","phase_count":2,...}`. Widening it changes the value of an
upstream-owned output field on bracket repos, so it is a behaviour slice (the
PR-2.5/PR-4 convention-less-readers question), not a merge-round change. The
mid-migration shape pinned here is the reachable half.

* fix(#2761): mirror the bracket terminator in the milestone-scope write guard

#3446's `findMilestoneScopeHeadingLines` is defined as a MIRROR of the
parser's terminator vocabulary — "a level 1-3 heading that is not a Phase
heading and carries a milestone signal". On this branch that vocabulary is
convention-SELECTED: `computeBracketSectionEnd` adds `isBracketMilestoneBoundary`
as a terminator arm, and the ADR-canonical `## [GSD.09] Hidden` carries NO
vN.N token, NO ✅/📋/🚧/🔄 marker, and not the word "Milestone". Left
unmirrored, the guard accepted exactly the description it exists to reject.

NOT a defect on clean next — a bracket heading terminates nothing there. The
branch widens the terminator set, so the branch owns the mirror.

MEASURED at the CLI seam before the fix (bracket fixture, one milestone,
one phase):

  $ gsd-tools phase add $'Sneaky\n## [GSD.09] Hidden'   -> exit 0, written
  $ gsd-tools phase add 'Innocent follow up'            -> exit 0, written
  $ gsd-tools roadmap milestone-scope
    { "scope": "complete", "phases": ["01","1"], "phase_count": 2 }
  $ grep '^### Phase' .planning/ROADMAP.md
    ### Phase 1: Sneaky
    ### Phase 2: Innocent follow up      <- in the document, out of the window

After the fix the first add exits 1, ROADMAP.md is byte-unchanged and no
phase directory is created. The legacy twin (same text, no
`phase_id_convention`) still exits 0 — opt-in only, base behaviour preserved.

SHAPE
- `findMilestoneScopeHeadingLines(text, convention)` — REQUIRED, the same
  tripwire `scanMilestonePhaseIds` carries in the merge commit and for the
  sharper reason: a blind call here fails OPEN (the guard quietly ACCEPTS a
  window-narrowing description), so a future call site must fail to COMPILE.
  Census is one caller, which pays nothing for it. A non-bracket value takes
  the pre-existing path byte-identically. The bracket arm routes through
  `isBracketMilestoneBoundary`, the same single-owner phase-vs-milestone
  discriminator `computeBracketSectionEnd` consults; no second bracket-heading
  grammar is spelled here.
- `selectedBracketId` is deliberately `null`, so the same-milestone
  CONTINUATION exemption never fires and a value naming the ACTIVE milestone
  is flagged too. That is this predicate's third stated conservatism and
  rests on its own existing argument: which milestone is active is a property
  of the document at write time, not of the text being validated, and
  over-rejecting is one-directional.
- `assertDescriptionPreservesMilestoneScope` takes `cwd` and resolves through
  the branch's tolerant try/catch — this guard runs BEFORE `loadConfig` and
  before the ROADMAP existence check, so an unresolvable convention must
  degrade to the legacy vocabulary, never turn a rejection into a crash.
- The error's marker list gains the bracket form only when the project is on
  the bracket convention.

RED/GREEN
- Revert the bracket arm -> 2 reds (phase add; insert + add-batch), the
  non-bracket control and both no-false-positive cases stay green.
- Revert the probe threading in the merge commit -> 1 red (the probe case).
- 6 new cases in the #3262 file, each with a non-bracket or
  no-false-positive control: fenced bracket milestone heading and bracket
  PHASE heading are both non-violations.

Droppable: revert this commit and the merge stands on its own; the branch
then ships the gap as a disclosure instead of a fix.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(changeset): narrow the enumerator claim to the directory set — per-entry rendering in progress/stats/init-manager is display-slice scope

Round-7 review confirmed 3 of the 4 surfaces named by the closing claim
parse each directory or heading with legacy-only patterns that live in
files this PR does not touch (commands.cts:1766, commands.cts:2116,
init.cts:2241). The claim now states exactly what this slice delivers:
the scoped directory set. Their per-entry conversion is display work,
deferred to the epic's display PR with the statusline/progress-card
gates it belongs beside.

* fix(#2761): de-accident the unmatched-milestone bracket fixture, re-pin to #3480's withhold contract

tests/adr-612-bracket-phase-counting.test.cjs:515 ("a milestone that
does NOT match STATE is not scoped in") asserted total_phases === 0.
Since today's merge brought in 70b5c1a1 (#3354/#3480, already in
`next`), buildStateFrontmatter withholds total_phases (omits the key,
read back as null) for a milestone that is genuinely sectioned but
matches no ROADMAP heading, instead of substituting a computed number
— the fixture's `state json` read now returns null, failing the
strictEqual(0) assertion.

The original single-section fixture's 0 only ever survived by
accident: hasMilestoneSectioning requires >=2 milestone-vocabulary
headings to call a ROADMAP sectioned, and its isPhaseHeading helper
recognizes only the legacy `Phase N:` text form — so the bracket
phase heading `### [GSD.03] 09: Not this milestone` (title containing
the word "milestone") miscounted as a second milestone heading,
tipping hasMilestoneSectioning true and routing to the disk-count
branch. With that miscount removed, the same one-section fixture
reads 1 (the non-matching milestone's phase count leaking into v2.0's
total) — proving the pinned 0 was never validating the scoping this
test claims to exercise.

Replaced the fixture with two genuine milestone sections (GSD.03,
GSD.04), neither matching STATE's v2.0, with phase titles carrying no
incidental vocabulary — the real #3354 shape. Re-pinned the assertion
to null, matching upstream's own tested contract (tests/state-
document.test.cjs, "#3354 with nothing stored, the key is omitted
rather than written from the dir count").

Verified: file green 3/3 runs (104/104), full state-suite regression
771/771 green. The isPhaseHeading gap that made the old fixture
accidental is a real, pre-existing, upstream-owned limitation
(hasMilestoneSectioning only guards >=2-section conflation, not a
single non-matching section leaking through) — not introduced by
#3480 or this branch; out of scope here.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): exempt two self-authored-fixture regexes from #3441's unbounded-quantifier rule

Both sites parse the STATE.md the test itself just wrote to its own
tmpdir — fixed-size fixture output, not adversarial or document-scale
input. Exempted with the justification-comment pattern the tree's own
tests use for this exact case (settings-integrations, copilot-install,
research-agent-profiles). The sites predate the rule; #3441 landed on
next this morning and this branch picked it up in the catch-up merge.

* fix(#2761): fix forward two next-movement test regressions from the round-11 rebase

origin/next's #3573 newly threads STATE's stored `milestone:` value into
`state json`'s buildStateFrontmatter call (previously always `undefined` on
that read surface). Two pre-existing PR-2 fixtures reach code paths that
call never exercised before that merge:

- RED (repro2 case C): a version-less, all-bracket-id ROADMAP now hits
  getMilestonePhaseFilter's pre-existing (unaffected by this branch) row-5
  `versionResolved && !headingFound => SCOPE.UNSCOPED` rule, which withholds
  `progress.percent` even though the scoped total_phases/completed_phases
  are still correct. That row-5 rule is load-bearing for six other
  version-less-document pins in this same file; narrowing it broke seven of
  them in testing, so production code is untouched here. Reassert the
  test's real claim (scoping, via total_phases/completed_phases) and
  disclose the now-withheld percent instead of silently dropping it.

- PIN (repro12 LEGACY control): a fenced-example-vs-real version heading
  fixture. #3573 routes this read through sliceMilestoneWindow (fence-aware)
  instead of the legacy anyMilestonePattern raw scan (fence-blind) this pin
  was disclosing as out of scope, so the fixture no longer exercises the
  blind path — total_phases moves from the whole-doc 4 to the correctly
  scoped 2. Re-pinned with an upstream-attributed comment, matching this
  file's existing house style for prior origin/next movements (see the
  sibling "PIN (G3 LEGACY control)" comment).

Both are test-only fix-forwards: no production code changed. The remaining
12 failures in this file at 27363e9d0 (dropped seam commits' VERIFICATION.md
naming + fixture updates) are pre-existing and deferred to the stacked
follow-up per the task's own scope.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): thread phaseIdConvention explicitly at the two write-adjacent enumerator call sites (round-11 BLOCKER)

listMilestonePhaseDirs' phaseIdConvention param lost its `= null` default
(phase-locator.cts), so an omitted convention now means "resolve from
config" instead of "explicitly not bracket" — a deliberate flip, but
milestone.cts and state.cts were not in the PR-2 diff and both call the
enumerator without threading it:

- milestone.cts cmdMilestoneComplete (the single #3597 shared derivation
  feeding the stats loop, --dry-run preview, and the real archive/rename
  pass) now resolves phase_id_convention once and threads it explicitly,
  so a bracket project's `milestone complete` archives its real
  bracket-declared phase directories instead of silently inheriting
  whatever the enumerator's lazy default resolves to.
- state.cts cmdStateUpdateProgress's own enumerator call threads the same
  resolved convention. Empirically this does not change the #3217 withhold
  gate (scope is assigned before headingConvention resolves in
  getMilestonePhaseFilter, so it's convention-independent either way) or
  the reported percent (already correctly threaded via
  computeUpdateProgressPreview -> buildStateFrontmatter); it closes a
  second, silently-resolved answer to the same question this file's own
  ONCE-and-THREAD rule (~:2300) already states as policy.
- state.cts's other listMilestonePhaseDirs call site (the state-sync
  scope-only read, ~:4791) is left unthreaded on purpose, with an inline
  note explaining why: only `.scope` is consumed, and `.scope` is set
  before convention resolution in getMilestonePhaseFilter, so it cannot
  disagree with a threaded convention.

Both enumerated sets are pinned by new tests (round-11 BLOCKER block in
tests/adr-612-bracket-phase-counting.test.cjs), including a mutation-style
regression check on the milestone.cts fix (forcing the un-threaded default
back on makes the pinned test fail, catching a regression to the
pass-all-degrade legacy reading).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): correct the changeset's false archival claim and amend ADR-612 for the round-11 M2(2) split scope

The changeset (.changeset/2761-bracket-read-tolerance.md) asserted "The
archival and milestone-completion paths are unchanged" — false: both
paths reach the widened enumerator, and this PR now threads their
convention explicitly (previous commit). Replaced the closing paragraph
with an accurate description of what changes for a bracket project at
those two call sites, and notes both enumerated sets are pinned by tests.

ADR-612 (docs/adr/612-bracket-phase-id-convention.md) amended per M2(2):
the 2026-08-03 PR-2/PR-4 boundary proposal is added in-body (PROPOSED,
not stamped — mechanics per docs/contributor-standards.md:143 reserve ADR
ratification to maintainers), rescoped to what actually ships in PR-2
(#2761) now that the round-11 M1 split moved the completion-seam
threading (isPhaseArtifact/scopeToPhase, phase-id.cts:964-1090) out into
a separate, stacked follow-up PR referenced generically via epic #612:

- state.cts read-tolerance (both total_phases derivations, the #1514
  retirement filter) moves into PR-2's row, alongside milestone.cts,
  reflecting the round-11 fix above.
- the write-observability point is restated in terms of what actually
  ships: explicit threading at two named call sites, pinned by tests,
  rather than silent inheritance.
- the completion-seam threading is named and explicitly excluded from
  PR-2's scope, with a new ratify item (5) and a Negative consequence
  bullet covering the sequencing cost.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): thread convention into the #3511 membership seam — bracket dirs scope like their legacy twins

Upstream #3511's isPhaseArtifact/scopeToPhase was structurally inert on
bracket directories: 3+-letter codes (GSD.02-…) fell into the zero-token
include-everything fail-safe (PROJECT_CODE_PREFIX_CAPTURE_RE_I strips
{CODE}-, not {CODE}.), and short digit-bearing codes (A1.02-…) into the
firstLetterPrefixed one — so every bracket dir read include-everything and
a cross-phase stray could complete a bracket phase, the exact
contamination #3511 shipped to prevent, still open on this PR's own
convention.

The seam now takes the same optional trailing convention its sibling
primitives do (ADR-2121 additive shape; gated on BRACKET_DIR_TOKEN_RE, the
one grammar owner shared with extractPhaseToken's bracket branch), through
a candidate-comparison core shared with the legacy path so the two cannot
drift. Threaded by the call sites that already hold the resolved
convention: the completion chain (isPhaseComplete ->
readVerificationStatus -> resolveVerificationFile, with a convention-aware
RESOLUTION token and a deliberately convention-less command-argument
token), buildStateFrontmatter, cmdStateSync, cmdStateValidate's S006/S007
scan, the planning snapshot, and roadmap analysis. Convention-less readers
(uat, audit, init, gap-checker, phase-locator) keep the documented
fail-safe — the follow-up slice.

The phase-counting fixture now writes what cmdScaffold writes
(phase-matched ${normalizePhaseName(phase)}-VERIFICATION.md) instead of a
hardcoded 01-VERIFICATION.md that #3511 correctly reads as a stray; the
stray shape is pinned deliberately in a new regression block (measured
pre-fix: [3,3,3,2,67] with the stray counted as completion) alongside
seam-level pins for BOTH fail-safe families, so neither the rename nor a
one-branch patch can stand in for the fix.

* fix(#2761): review round — gate the FILENAME reading on the convention too, ratify the M-NN twin-parity trade

Two-leg review of the seam thread (adversarial + upstream-fit, then an
adversarial re-verify of the fixes) found and this commit closes:

- Major: the convention gated only the DIRECTORY reading. A
  milestone-qualified artifact name (GSD.02-01-VERIFICATION.md — the layout
  the read-tolerance suite models) derives zero legacy token segments, so
  FIX 2's token-less containment admitted it into ANY bracket dir. Qualified
  stems now compare on bracketQualifiedKey — exact key, or the dotted
  sub-phase continuation (the round-2 verify caught strict equality dropping
  the dot arm: over-exclusion, the dangerous direction) — while a well-formed
  stem naming a different phase or milestone is excluded. Malformed
  qualified-shaped stems keep the documented include-everything fail-safe.
- Major, RATIFIED not changed: an M-NN-stem report (02-01-VERIFICATION.md in
  GSD.02-01-one) is excluded exactly as its legacy twin excludes the same
  file; migration-window artifact renaming belongs to the migrator slice
  (ADR-612). Pinned in tests with its legacy-twin control.
- Minor: the counting fixture's verificationNameFor now routes through the
  production normalizePhaseName (padding has a single owner), and its
  docstring states honestly which artifact layout it models.
- cmdRoadmapUpdatePlanProgress threads the convention into isPhaseComplete
  (ADR-3180 §7.4 read/write-path symmetry with the analyze site).

All pins carry measured pre-fix values. Convention-less paths swept
byte-identical (1,800 comparisons, 0 differences).

* fix(#2761): mark the round-11 decoy fixture incomplete so it doesn't need a phase token

The two round-11 BLOCKER tests (cmdMilestoneComplete / cmdStateUpdateProgress
enumeration) pass a `not-a-declared-phase` decoy directory to writeProject as
an implicitly-complete fixture entry. After threading convention through the
#3511 membership seam, verificationNameFor derives the scaffolder's real
verification filename from the directory's phase token — which the decoy,
by design, does not carry. Mark the decoy incomplete instead: the assertions
these tests pin (exclusion from would_archive.phases / stats.phases) don't
depend on the decoy having a VERIFICATION file at all.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): repair round-11 response gaps — disk-side sentinel bug, test-fixture bug, scanMilestonePhaseIds caller drift

Four independently-verified gaps in the round-11 repair response:

1. isSentinelPhaseId (src/phase-id.cts) treated a bare, untagged phase
   directory under phase_id_convention: "bracket" (`0-bootstrap`, no
   `{CODE}.{MM}-` prefix) as sentinel milestone 0 by falling through to the
   legacy leading-int rule when the bracket-tag match failed. This silently
   dropped a real, on-disk, milestone-declared phase directory from
   `listMilestonePhaseDirs` (phase-locator.cts:424, the only unguarded call
   site) and undercounted completed_phases/percent. Mirrors the carve-out
   already present on both heading-side counters (state.cts's
   countRoadmapPhaseHeadings guards its bare-0 exclusion with `bracketId &&`;
   roadmap-parser.cts's scanMilestonePhaseIds composes the bare-token rule as
   999-only) — under bracket convention, milestone 0 is expressed only via an
   explicit bracket tag, so an untagged leading 0 is a real phase token.

2. tests/adr-612-bracket-phase-counting.test.cjs's writeProject fixture
   hardcoded `01-VERIFICATION.md` for every "complete" phase dir regardless
   of the dir's real phase token. Under legacy convention this file already
   correctly failed #3511's strict isPhaseArtifact match for any dir other
   than phase 01 (the fixture never modeled what it claimed to); under
   bracket convention the pre-existing ambiguity fail-safe admitted it
   regardless. The two readings' disagreement was mistaken for a missing
   completion-seam threading (isPhaseArtifact/scopeToPhase convention
   awareness, correctly split out to the stacked #3644 per round-11's M1).
   Replaced the hardcoded name with verificationNameFor(dir), deriving the
   real per-phase filename from the production normalizePhaseName the same
   way cmdScaffold does — the 7 failing "flat-legacy-twin" / CHARACTERIZATION
   assertions pass on #2867's own code with no seam threading required, and
   the genuine seam-dependent cross-phase-stray-exclusion test the fixture
   fix would otherwise have hidden lives on the stacked branch instead.

3. tests/roadmap-parser.test.cjs's two #3577 tests still called
   scanMilestonePhaseIds with the old single-Set return shape; this PR
   changed it to `{ ids, qualifiedIds }` for every other caller but missed
   these two, which don't touch #2761/bracket code at all. TypeErrors at
   runtime, not silently-wrong assertions. Updated both call sites.

4. .changeset/2761-bracket-read-tolerance.md gains a paragraph disclosing
   fix 1 above, so the changeset stays accurate to what actually ships (the
   round-11 BLOCKER was exactly this changeset going stale once).

Verified: tests/adr-612-bracket-phase-counting.test.cjs +
tests/continuation-grammar-parity.test.cjs + tests/roadmap-parser.test.cjs =
354/354. adr-612-{coherence,grammar,heading-selection,read-tolerance,
selection.property}.test.cjs + collision-characterization = 287/287
(CONFIRMED-CLEAN set, unaffected). Full unfiltered suite run separately.

PR #3643 (round-11's M1 split, opened draft per that round's explicit
requirement) was auto-closed by this repo's own draft-PR policy 11 seconds
after opening — draft PRs are unconditionally closed here. Reopened as
non-draft #3644 (same branch, same commits, DO NOT MERGE / stacked-on-#2867
marker in the body, enhancement template) since the repo's own bot confirms
non-draft contributor PRs are tolerated even off-template.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* feat(#2761): gated heading-intro selection + one bracket identity grammar

Foundation. Two owner-level changes plus a federated convention resolver; no
reader consumes them yet.

1. GATED SELECTION, not an ungated widening.

   Widening every heading matcher requires the claim "no legacy ROADMAP contains
   a `[CODE.MM]` bracket followed by a digit", and that is false:
   `### [RFC.2119] 5:`, `### [v1.0] 2024:`, `### [ADR.612] 3:` and
   `### [ISO.8601] 2026:` are ordinary headings, and a widened reader claims each
   as a phase — moving phase_count and total_phases and adding W006 on projects
   that never opted in. No narrowing rescues it: the premise is about documents
   we do not control.

   `phaseHeadingPrefixSrcFor(baseline, convention, capturing?)` selects the
   pattern SOURCE at construction time. A project whose resolved
   `phase_id_convention` is not exactly 'bracket' compiles the same source string
   it compiled before. `baseline` is explicit because whether a site spells the
   any-bracket prefix or a bare `Phase\s+` is a fact about that site's history:
   handing the wider grammar to a bare site retro-grants tolerance it never had,
   in both directions — warnings appear, and a warning that fires today vanishes.

   Both bracket forms CAPTURE. `[GSD.999] Phase 07:` previously matched through
   the base alternative, which captures nothing, so a reader saw no bracket, fell
   back to the legacy token rule, and counted a labeled icebox heading while
   excluding the label-less one beside it — two derivations of one ROADMAP
   disagreeing.

2. ONE bracket identity grammar, one width rule.

   The milestone width is reconciled with the emit validator: pad2 output, so
   two digits or 3+ with no leading zero. Earlier spellings diverged in both
   directions — admitting `002`, which the validator rejects, and a bare `0` pad2
   never produces — and the section recognizers accepted `[GSD.2]`, which SCOPED
   a milestone no phase heading could then resolve into, recreating the
   on-disk-count fallback this epic removes. An unpadded bracket is now uniformly
   malformed: it scopes nothing, bounds nothing, sections nothing. W005 on its
   directories is the surfacing signal.

   The milestone field is boundary-anchored, so a malformed run cannot match by
   its prefix (`GSD.002-01` read as sentinel `00`). Recognition stays
   case-insensitive because readers compile `/i`, but identity helpers match
   `[A-Z]`, so a captured id is folded first — otherwise `### [gsd.999] 07:`
   failed every sentinel test. The qualified key shares the width, the `(?=-|$)`
   boundary and the single-sub-phase shape of the directory token, because
   phaseTokenMatches returns unconditionally on a qualified hit: a key matching a
   directory isPhaseDirName rejects would be a final wrong answer.

3. resolvePhaseIdConvention federates workstream -> root exactly as
   config-loader does — including that root is a fallback only when a WORKSTREAM
   is active, so a project-scoped directory stands alone. loadConfig cannot serve
   this: it merges against CONFIG_DEFAULTS and drops keys it does not know, and
   this key is not among them. It governs the bracket-selection reads ONLY.

PHASE_HEADING_PREFIX_SRC is left byte-identical: PR-1 shipped it, nothing
consumes it, and it is superseded rather than redefined.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* feat(#2761): roadmap.cts selects its heading grammar from the convention

Six matchers build their intro through the gated selector, and
cmdRoadmapAnalyze / cmdRoadmapGetPhase / getRoadmapPhaseWithFallback each
resolve the convention ONCE per command and thread it down.

Three sites take the any-bracket baseline (they already tolerated
`[anything] Phase N`); three take label-only (they spelled a bare `Phase\s+`).
Handing the wider grammar to a label-only site retro-grants tolerance it never
had — and not only by adding matches: on a legacy repo an unchecked
`- [ ] **[v1.0] Phase 05: Thing**` bullet would start SUPPRESSING the W006 that
fires today.

Sentinel handling under bracket ADDS a rule rather than replacing one: a
bracketed heading is a sentinel when its bracket milestone is reserved
(`### [GSD.999] 01:`) OR when its token is, so the engine-wide 0/999 backlog
convention keeps applying to `### [GSD.02] 999:`. Replacing the token rule let a
mid-migration ROADMAP — bracket headings plus a legacy backlog block, exactly
the content this epic targets — add entries to the progress denominator. The
captured id is folded before the identity test, so a lowercase
`### [gsd.999] 07:` is excluded too.

The DIRECTORY read is threaded too. `cmdRoadmapAnalyze` resolves the convention
once and hands it to all four of its heading/checklist patterns, but the single
`phaseTokenMatches` call that decides `disk_status`, `plan_count`,
`summary_count`, `has_context` and `has_research` was left two-argument — so
every canonical `{CODE}.{MM}-{PP}-slug` directory read as `no_directory` with
zero counts, on the PR's own headline verb, while the SAME build resolved those
same directories correctly in three other places on the same repo (W006/W007 via
phaseTokenFromDir, `state json` via the milestone filter, and the W021
milestone-complete read through this very helper's three-argument form). It
failed ONLY for the directory shape the convention exists to name: a
mid-migration bracket repo carrying legacy `01-one` dirs resolved fine, which is
why nothing caught it. Measured, bracket vs its flat-legacy twin:
`[["01","no_directory",0,0],["02","no_directory",0,0]]` against
`[["01","complete",1,1],["02","planned",1,0]]`.

The oracle is the twin, computed in the same test run, plus exact literals —
`grep disk_status tests/adr-612-*` was zero hits before this, so neither the fix
nor a future regression had any gate at all.

Disclosed: a ROADMAP written in bracket form before config.json is switched
reads as empty rather than mis-counted. Silent invisibility during the migration
window is the deliberate trade against claiming phases on projects that never
opted in.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* feat(#2761): validate.cts selects its grammar; gated directory recognition

The W006/W007 feeders take the resolved convention as a threaded parameter.
These sites carry the letter-tolerant `[\w][\w.-]*` capture, which makes them
where an ungated widening does the most damage: `### [RFC.2119] 5:` enters
roadmapPhases as a phantom and becomes a W007 "in ROADMAP.md but no directory on
disk" on a project that never opted in.

buildRoadmapPhaseVariants also surfaces the tokens borne ONLY by sentinel-bracket
headings. Surfaced rather than filtered in place because roadmapPhases feeds both
a membership check and a missing-directory warning, and only the latter should
ignore an icebox item.

That set is OCCURRENCE-AWARE, and the subtlety is load-bearing: roadmapPhases is
a TOKEN set, so `[GSD.999] 01` and `[GSD.02] 01` collapse to one entry. Keying
suppression on the token alone let an icebox heading silence a REAL phase that
happens to share its number — a false negative strictly worse than the warning it
removed. A token is suppressed only when no non-sentinel heading bears it.

Directory recognition is added as gated FUNCTIONS beside the exported RegExp
constants, which stay byte-identical: the `{CODE}.{MM}-` prefix is
string-indistinguishable from the letter-prefixed-decimal family this repo
documents as ambiguous, and folding a branch in changes those constants' answers
on exactly that family. A RegExp constant has nowhere to attach a gate.

The recognizer mirrors the emit grammar and delegates the token to the canonical
owner, so recognizer and resolver agree on rejected input as well as accepted.
Both functions throw on a non-string, matching the call pattern they replace.

buildRoadmapPhaseVariants' CHECKLIST scan is capturing, like its heading twin
and like the sibling checklist scan in roadmap.cts, and for the reason that one
states: the bracket id has to ride along or the sentinel filter is blind to
`- [ ] **[GSD.999] 01: Icebox**`. Left un-capturing, the scan called every
checklist token REAL, and the occurrence-aware un-suppression loop then deleted
the icebox token the HEADING scan had correctly marked sentinel — so `validate
consistency` warned that a bracket ICEBOX phase had no directory, in the HOUSE
ROADMAP shape where an icebox appears as both a bold bullet and a detail
heading. `validate health` stayed silent on that same repo, so the two verbs
disagreed — which is the disagreement `sentinelPhases` exists to close.

Both directions are pinned, because the failure mode of a careless fix here is
the opposite one: a real phase sharing a sentinel's token must still warn. It
does, in all four shapes that attack it (sentinel heading + real bullet,
lowercase sentinel, sentinel after the real heading, colon-less bullet).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#2761): count bracket headings, and retire them, in both derivations

Both `total_phases` derivations select their grammar from the resolved
convention, in one commit — cmdStateSync already carries the comment that it
mirrors buildStateFrontmatter "so both report consistent percents (#3242 Bug B)",
so teaching one and not the other ships that divergence.

The #1514 retirement filter widens WITH the counter it protects. The canonical
gesture strikes the checklist BULLET and leaves the detail heading intact, so a
bracket-form retirement went undetected and the phase stayed in the denominator
forever. That is half a fix alone: the retired key is compared against
phaseKeyFromDir, which called extractPhaseToken with no convention. Both halves
land here.

Under bracket the sentinel token rule composes as the full engine set {0, 999},
so this counter agrees with `roadmap analyze`, which has always excluded both —
otherwise the two derivations report different numbers for one ROADMAP and the
changeset's "excluded from every count" is false as written. The LEGACY path
keeps its pre-existing 999-only rule: widening it there would move legacy totals,
so the two stay split off the bracket path exactly as they are today.

The sync-side assertion reads the PERCENT sync writes into the STATE.md body, not
the frontmatter total_phases. Sync's own counter never reaches that field — the
read derivation writes it — so asserting the frontmatter after a sync measures the
read path twice and lets a mutation to the write-path guard survive.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* feat(#2761): verify.cts bracket-coherence W021 + selected milestone-complete read

The shipped milestone-prefixed W021 gate keeps its ROOT-only config read,
verbatim base semantics. Federating it silently moved a legacy convention's
answer in BOTH directions on workstream repos — a W021 that fires at base
vanishing, and one that is silent at base firing. resolvePhaseIdConvention
governs the new bracket-selection reads only.

B6, the milestone-complete check, keeps its ungated POSTURE (bug-557 pins it
with an empty config) but selects its grammar from the convention. Inferring
'bracket' from the shape of a matched bracket ran a repo-failing check against a
legacy ROADMAP that merely contained `### [RFC.2119] 5:`. Directory resolution
widens with the heading read, so a bracket repo whose phases are on disk stays
silent, and a bracket sentinel is not reported as unstarted.

checkBracketCoherence is advisory and gated. Anchored to tokenizeHeadings so
fenced examples cannot warn and heading level is structural. Its scope rules each
close a way it silently did nothing or fired wrongly: only a genuine MILESTONE
heading opens or closes a section (a `### Notes` used to reset scope and disable
both sub-checks); a legacy `## v3.0` DOES close it; an M-NN or letter-suffixed
phase heading raises missing-bracket and CONTINUES; a bare `#### 2026:` is not a
phase; the full h2-h6 range is processed. Its section recognizer shares the one
milestone width, so an unpadded `### [GSD.3] 05:` can no longer be a phase to the
id grammar and a section to the section grammar at once, silently re-scoping
every warning after it.

validate consistency suppresses bracket sentinels in its missing-directory
warning — the two verbs disagreed, health suppressing via notStartedPhases while
consistency did not. The legacy reading is untouched, including its pre-existing
wart that `### Phase 999:` still warns there.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#2761): scope the milestone by its bracket; select the disk-side filter

Two roadmap-parser reads, both of which made a bracket project's totals track
the disk instead of the ROADMAP.

The ADR pins the bracket milestone heading as `## [GSD.02] Foundation` — a name,
no version — but scoping matched STATE's `milestone: v2.0` STRING against a
heading, so the canonical form matched nothing and total_phases fell back to the
directory count. The rule was re-derived in THREE places: extractCurrentMilestone
plus two `milestoneBounded` guards; fixing one left the others falling back
regardless, so they are now one gated helper. It matches the CANONICAL padded
spelling only — accepting `0*N` bounded a milestone whose phases were invisible,
which un-suppressed a progress percent computed off an unscoped disk count.

getMilestonePhaseFilter's heading scan becomes the 14th selected read. On a
bracket ROADMAP it collected nothing, so the filter degraded to pass-all and
buildStateFrontmatter counted every other milestone's directories — making the
bracket convention strictly worse than the M-NN one it supersedes on the property
that matters most: totals must track the ROADMAP, not the disk.

The DIRECTORY side of that same filter is selected with it. Teaching only the
heading scan was half a fix and a worse one: `milestonePhaseNums` became
non-empty, so the pass-all degrade stopped firing, but no bracket directory could
satisfy the three legacy dir checks (numericRe fails on `GSD.02-05-five`, the
custom-id match captures the project code `GSD`, and stripProjectCodePrefix does
not strip a dotted prefix). Every bracket directory was rejected, and
completed_phases / total_plans / completed_plans / percent all collapsed to 0
while `state sync` went on writing a percent off the unfiltered disk — `state
json` reporting 0% on the same repo, in the same second, that STATE.md's body
called 67%. That is the #3242 Bug B divergence this PR exists to avoid, and
total_phases could not show it: `Math.max(phaseDirs.length, roadmapPhaseCount)`
floors it at the ROADMAP count no matter how many directories are rejected.

The dir side matches on the milestone-QUALIFIED id, delegated to the owner's
gated `phaseTokenMatches(dir, id, 'bracket')`, not on the bare token: READING-B
puts the milestone in the bracket, so `GSD.01-01-old-one` and `GSD.02-01-one`
share the token `01` and only the qualified key separates them. The qualified ids
are kept in their own set — a hyphen in `milestonePhaseNums` would flip
`roadmapUsesHyphenedIds` and silently move the LEGACY dir path on a bracket repo
— and the branch is ADDITIVE: on a miss it falls through to the three legacy
checks, so a bracket project carrying legacy-shaped directories reads unchanged.

Both are resolved lazily and gated, so the legacy path pays neither a config read
nor a second scan and cannot change answer. The scoping call is also GUARDED:
resolvePhaseIdConvention reaches planningDir, which throws a plain Error for a
GSD_PROJECT/GSD_WORKSTREAM segment carrying `/`, `\` or `..`. At base the only
planningDir call in extractCurrentMilestone sits inside the STATE-read try, so
the function returned normally on such an environment; an unguarded one here let
that escape and broke the never-throws invariant that getRoadmapPhaseInternal and
getMilestoneInfo three hundred lines below carry #2245 / ADR-227 notes about.
Unreachable through the CLI — GSD_WORKSTREAM is rejected up front by the
workstream-name policy and GSD_PROJECT throws identically at base — but reachable
by any in-process embedder, which is precisely who that invariant is for. The
filter's own resolve call was already inside its try and is unaffected.

The milestone-qualified key is formed only for a token that is itself a bracket
phase token. `${bracketId}-${token}` is a string SPLICE, so a mid-migration
heading carrying an M-NN label — `### [GSD.02] Phase 02-01:` — spliced to
`GSD.02-02-01`, which the qualified-key grammar reads as milestone 02 / phase 02:
the `-01` truncated, both such headings collapsing to one key, and the heading
claiming `GSD.02-02-two`, the directory it does NOT name, while rejecting
`GSD.02-01-one`, the one it does. The guard drops those headings back to the
unqualified legacy path, restoring the base ACCEPTANCE VECTOR exactly — pinned
against the milestone-prefixed reading of the same ROADMAP, which is
base-identical on this shape.

Scoped precisely, because the fixture moves one number that the guard does not
touch: `total_phases` on it reads 1 at base and 2 here. That is the bracket
heading COUNT this PR exists to add, not the splice — measured identical with and
without the guard, and identical to what the canonical `### [GSD.02] 01:`
spelling does on the same fixture (both read 2 with zero directories on disk,
where base reads 0). The claim is base-equivalent ACCEPTANCE, not a
base-equivalent reading.

One consequence is stated rather than fixed: a heading whose token carries a
hyphen still puts that hyphen into milestonePhaseNums and so still flips
`roadmapUsesHyphenedIds`. Base does the same for that spelling, so preserving it
is what keeps the shape base-equivalent; excluding the token would have moved
answers versus base on malformed input. The comment at the qualified-set
declaration is corrected to claim only what is true — it keeps QUALIFIED IDS out
of that flag's input, not hyphens in general.

The oracles ship with it, and they are the five numbers, not the one: the parity
gate now asserts total_phases, completed_phases, total_plans, completed_plans AND
percent, on both derivations, on two fixture shapes (one milestone; two
milestones with stale prior-milestone directories on disk). The oracle is the
flat-legacy twin, built in the same test run and compared number for number,
plus exact literals so a shared wrong answer cannot pass.

The oracle SUBSTITUTION is itself pinned. The M-NN spelling of these shapes could
not serve, because buildStateFrontmatter's #2445 de-dup key captures only a
directory's leading integer and collapses `02-01-one` / `02-02-two` /
`02-03-three` to one — measured [3,0,1,0,0] against the flat-legacy twin's
[3,2,3,2,67], identically at base and before this fix, and structurally
unreachable from the bracket key space. That reasoning is only sound while it
stays true, so a characterization test holds the M-NN reading down on the two
numbers that do not depend on which directory wins the mtime race. Widen the
de-dup key and it fails, instead of quietly invalidating the changeset's
disclosure.

Also adds the call-site pin. The structural table pins transcription against the
selector; it cannot see a call site whose BASELINE ARGUMENT is wrong. Flipping
verify.cts's milestone-complete site to the wider baseline grants a
fires-on-every-repo check tolerance it has never had, and every behavioural test
still passed. The pin reads the shipped sources and asserts the mode at each of
the 14 sites, count-exact.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): pin the bracket read surfaces in the parity gate

This gate exists because #2043 fixed one bug across five hand-edited copies of a
rule and #2232 was the residual that survived, because a later reader could not
tell the copies were one rule. PR-2 adds two consumers, so they belong here.

Surface 7 — the heading read and the directory read must agree about WHICH phase
a `MM-<seg>` pair names, across the shared width corpus, and the bracket and
legacy spellings of one heading must yield the same token.

Surface 8 — the two bracket directory readers, in BOTH directions. Agreement on
ACCEPTED input was already pinned; agreement on REJECTED input is where they
actually diverged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#2761): changeset

Disclosures for the PR body (deliberate, not defects):

- phase_id_convention is not a CONFIG_DEFAULTS key, so loadConfig drops it and
  cannot serve as the convention resolver however the file is federated. This PR
  ships its own workstream->root resolver; adding the key and its value enum is
  later-slice work.
- Convention matching is strictly === 'bracket'. A misspelled value reads as
  not-configured and the project keeps legacy behaviour silently.
- An UNPADDED bracket milestone (`[GSD.2]`) is malformed: it scopes nothing,
  bounds nothing, sections nothing, and is not a phase id. W005 on its
  directories is the surfacing signal.
- WIDTH UNIFICATION MOVED FOUR MERGED PR-1 EXPORT ANSWERS on non-canonical
  inputs, none of which toDir can emit and none of which had a bracket caller at
  base:
    isSentinelPhaseId('GSD.0-01',    'bracket')  true  -> false
    isSentinelPhaseId('GSD.0999-01', 'bracket')  true  -> false
    getMilestoneFromPhaseId('GSD.2-01',   'bracket')  'v2.0' -> null
    getMilestoneFromPhaseId('GSD.002-01', 'bracket')  'v2.0' -> null
  The canonical pad2 sentinel spelling `[GSD.00]` still tests true.
- FLAG TO MAINTAINER: docs/adr/612:132 reads "Sentinel behavior (0.x / 999.x ->
  milestone null) is preserved". After the unification that holds for the
  canonical `00` spelling only, not for a bare `[GSD.0]`. ADR wording is yours;
  flagging the tension rather than editing it.
- The bracket sentinel rule COMPOSES with the legacy one — a bracketed heading is
  a sentinel when its bracket milestone OR its token is reserved. Under bracket
  the state-side token rule is the full {0, 999} set so both derivations agree;
  the LEGACY path keeps its pre-existing 999-only rule, unchanged.
- validate consistency's legacy reading is untouched, including the pre-existing
  wart that `### Phase 999:` warns there while validate health suppresses it.
- find-phase still cannot resolve a bracket phase directory. phase-locator.cts is
  outside this PR's module set. Sibling PR #2559's matchPhaseDirs calls
  phaseTokenMatches without a convention, so whichever slice lands second must
  thread it through.
- Four of the five bracket readers scan raw ROADMAP content, so a bracket heading
  inside a fenced code block is read as a phase. Pre-existing for the legacy
  spelling; parity, not a new class.
- roadmapPhaseLookupSources gained no bracket source: nothing emits a
  milestone-qualified query into it yet.
- roadmap validate remains a separate, unfederated convention reader.
  Pre-existing and base-identical, but two verbs can disagree about the active
  convention on one project.
- _diskScanCache keys on cwd while the values it caches are now
  convention-dependent. Not reproducible through the CLI; pre-existing for the
  workstream dimension, widened here. Stated as inconclusive.
- A ROADMAP written in bracket form before config.json is switched reads as empty
  rather than mis-counted — the deliberate migration-window trade.
- THE READ AND WRITE PERCENTS STILL DIVERGE ON A MULTI-MILESTONE REPO, and that
  divergence is MIRRORED under bracket rather than closed. buildStateFrontmatter
  applies the milestone filter; cmdStateSync does its own fs.readdirSync and never
  calls it, so on a repo carrying prior-milestone directories the read path
  reports the SCOPED percent and the sync body reports the WHOLE-DISK one.
  Measured on the true base build (d04592de), flat-legacy spelling, 3 in-scope
  phases with 1 complete plus 2 stale prior-milestone dirs: `state json`
  [3,1,3,1,33], sync body 60%. The bracket twin of that repo now reads the same
  two numbers — 33 and 60. Scoping the sync counter would move every legacy
  repo's percent, which a bracket read-path PR must not do. The gate pins both
  sides, so the mirror cannot silently become a one-sided fix.
- THE PARITY ORACLE IS THE FLAT-LEGACY TWIN, NOT THE M-NN ONE, and that is a
  measurement finding rather than a preference. buildStateFrontmatter's #2445
  de-dup key captures only a directory's LEADING integer, so the M-NN dirs
  `02-01-one` / `02-02-two` / `02-03-three` all key to `2` and two of the three
  are dropped before they are ever counted: base reads [3,0,1,0,0] where the
  flat-legacy twin of the same repo reads [3,2,3,2,67]. Present identically at
  base and at HEAD, untouched here, and structurally unreachable from the bracket
  key space — `GSD.02-01-one` does not match that pattern at all, so every bracket
  directory keys to its own name. The source line already carries a
  `phase-id-owner:` sanction recording the divergence. Mirroring it under bracket
  would mean manufacturing a collision that cannot occur, so the gate compares
  against the flat-legacy spelling, which is uncontaminated. This paragraph is
  itself pinned: a characterization test holds the M-NN reading on the two
  numbers that do not depend on which directory wins the mtime race, so widening
  the de-dup key in a later slice fails the suite rather than silently making
  this disclosure false.
- THE `phaseTokenMatches` CALL-SITE CENSUS, stated so the remaining gaps are
  auditable rather than implied. 13 call sites outside the owner (phase-id.cts).
  THREE are three-argument: verify.cts:2229 (the W021 milestone-complete read,
  already was), roadmap.cts:436 (`roadmap analyze`'s directory lookup, threaded
  by this PR) and roadmap-parser.cts:792 (the disk-side milestone filter, added
  by this PR). The other TEN are two-argument and stay that way — phase.cts ×5
  (220, 277, 444, 585, 1547), phase-locator.cts:62, smart-entry.cts:243,
  init.cts:1414, milestone.cts:551 and verify.cts:2467. All ten are untouched by
  this PR and base-identical.
  One of them sits in a file this PR DOES edit, so it is named rather than left
  to a reader's grep: verify.cts:2467, `verify schema-drift <phase>`. Measured on
  a bracket repo across base / pre-fix branch / this HEAD, all three agree on all
  three argument forms — `verify schema-drift GSD.02-01` and `… 01` both report
  "Phase directory not found" on every build, and `… GSD.02-01-one` resolves on
  every build through the exact-directory-name fallback. So the user-visible
  shape of what stays broken is: a bracket phase is addressable there by full
  directory name only, exactly as at base. Threading the convention into a
  function this PR never touched, in the last round before ship, is the wrong
  trade; it is where the same one-argument fix goes next, alongside
  milestone.cts:551 and init.cts:1414.
- A BRACKET HEADING WHOSE TOKEN CARRIES A HYPHEN (`### [GSD.02] Phase 02-01:`,
  a mid-migration spelling) forms NO milestone-qualified key, and therefore
  scopes through the unqualified legacy path — base-equivalent ACCEPTANCE, which
  is the claim, and not a base-equivalent reading: `total_phases` on that shape
  moves 1 -> 2 for the same reason it moves on the canonical `### [GSD.02] 01:`
  spelling, because counting bracket headings is what this PR does. Such a token
  still flips `roadmapUsesHyphenedIds`, as it also does at base. The comment at
  the qualified-set declaration now claims only that narrower, true thing.

The `pr:` field carries the sub-issue number as a placeholder — it must be
updated to the real PR number when the PR is opened.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#2761): point the changeset at PR #2867

* test(#2761): fast-check properties for the convention-selection layer

CONTRIBUTING.md mandates a generative property test for parser/bijective-contract
changes; PR-2 shipped six example-based files and none. This adds the missing
layer, scoped to what PR-2 actually contracts — WHICH pattern each reader
compiles, decided by the resolved `phase_id_convention` — rather than restating
PR-1's grammar round-trip properties, which already live in
tests/adr-612-bracket-grammar.test.cjs.

Four properties: P1 an opted-in repo reads the ADR-canonical label-less bracket
heading/dir and a non-opted-in repo is byte-blind to the identical input; P2
every non-bracket convention agrees with the hand-transcribed BASE source over
generated content, including bracket-DOTTED legacy prose (`[RFC.2119] 5:`) that
must never be claimed as a phase; P3 nine per-field mutations are rejected and
the one case variation folds instead; P4 both sides of a phase comparison derive
the same key under the same convention.

Generators template every input from raw primitives — nothing is seeded through
renderPhaseId/toDir, the p2() tautology that made #2258 round 1's property test
structurally unable to find B1. Domain reaches past 99 into the 3+-digit branch
(round 2's numArb-capped-at-99 miss), forces sub-phases in at weight, and pins
both sentinel milestones.

Falsified against the COMPILED lib, not the source: five deliberate mutants
(gate never fires; gate always fires; milestone width widened to \d+; the #612
convention forwarding dropped from phaseKeyFromDir; extractPhaseToken's bracket
branch ungated) each fail the specific property that should catch them —
16/2, 16/2, 15/3, 17/1, 17/1 pass/fail — and the lib restores byte-identical.

An earlier draft of P2 held vacuously: its base regex omitted the markdown
furniture the selected one carried, so every realistic `### Phase NN:` line
matched neither side. The gate-always-fires mutant did not kill it. Both are now
compiled through one function, and that mutant kills P2.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): adversarial malformed bracket tokens across the tolerant readers

The existing boundary coverage stopped at shapes the emit grammar rejects
(unpadded `[GSD.3]`, wrong-case, `12A`). It never exercised a STRUCTURALLY
broken token — a non-numeric milestone, a bracket that never closes, a bracket
nested in another — which is the input a tolerant reader is most likely to
half-read, and the one the PR's own regex commentary is explicit about.

read-tolerance (roadmap heading scan + validate's dir and variant builders):
ten malformed headings, each asserted to be read as a phase by NO convention and
to give the opted-in repo the same answer as the legacy one; the corpus driven
through `roadmap analyze` end to end; malformed DIRECTORY names asserted
unrecognized and non-throwing on all four conventions; and the two variant
builders asserted to agree, since a widening that reaches only one splits
`validate consistency` from `validate health` (the #3242 Bug B shape).

coherence (verify.cts W021): the same six broken shapes asserted to raise no
W021 of their own AND not to re-scope the W021 that follows them — the G2
failure mode reached from a different shape, where a heading that is not a phase
but IS read as a section silently moves later warnings onto the wrong milestone.

Both files gain a pathological-input time bound. Nested quantifiers over a long
unclosed bracket are the classic ReDoS shape and two commits on next (#2828,
#2944) were CodeQL-flagged for exactly that, so the bound is asserted rather
than argued from reading the pattern. The probes themselves parse no regex.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#2761): document "bracket" as a phase_id_convention value

The row listed only `"milestone-prefixed"` and `null`, so after two shipped
slices (#2258 grammar, this PR's read path) the convention had no documented
enum value. CONFIGURATION.md is also a top-10 historical co-changer of both
src/verify.cts and src/state.cts and was absent from this PR.

The row states the boundary rather than the ambition: `"bracket"` changes the
READ path only, there is no migrator and no emit yet, and a project on any other
value compiles the patterns it compiled before. That keeps the docs honest for
the two releases before PR-3 and PR-4 land, instead of describing a convention a
user cannot yet migrate to.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#2761): retype the changeset Added, drop the docs-exempt marker

`Fixed` was wrong by CONTRIBUTING.md's own definition — a fix restores
documented behavior, and bracket read tolerance is the second slice of a
capability that did not exist before #2258. The type also carried a
`docs-exempt` marker, and `Fixed`/`Security` are exempt from the docs-required
lint, so the typing had the effect of routing around a gate this change should
pass. It now passes it: `lint-docs-required` returns ok_docs_updated on the
CONFIGURATION.md row added in the previous commit.

Body gains one sentence pointing at that row and restating that `"bracket"` is a
read-path opt-in until the migrator and write path land.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): pin the version-less bracket milestone scoping gap; narrow the claim

The changeset asserted that milestone scoping "recognises the ADR-canonical
`## [GSD.02] Foundation` heading and applies to the phase DIRECTORIES too." A
CLI probe on that exact heading form falsifies the second half: with no `vN.N`
in the milestone heading the directory side does not scope, and directories from
BOTH the prior and the later milestone are admitted. Measured 4 dirs counted
where the milestone declares 2.

Every bracket fixture in the suite writes `## [GSD.02] v2.0: …`, so nothing
covered the form the ADR actually specifies — and the state.cts doc comment
calls that version-less form canonical.

Mechanism, in extractCurrentMilestone: the bracket scope branch selects the
right currentSection, but `preambleCutoff` keys off a pattern requiring a
version or status emoji, so a version-less roadmap falls back to the current
milestone's own offset and every PRIOR milestone lands in the preamble — whose
phase-stripping regex only strips `Phase N:`-labelled headings, so bracket phase
headings survive it. Independently, `computeSectionEnd` accepts a boundary only
on a version/emoji heading, so the section runs to EOF and every LATER milestone
is swept in. Two sites, bidirectional.

Not fixed here: it changes milestone scoping, which is shared with the legacy
path. Five characterization tests pin today's reading plus a versioned CONTROL
proving the version string is the only difference, and the changeset sentence is
narrowed to what the code does. The DEFECT assertions are written to be
INVERTED by the fix, not deleted — that inversion is its regression proof.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#2761): re-anchor the branch's own cross-file line citations after the rebase

Three of this branch's code comments cite sibling call sites by line number, and
the rebase onto 178ec000 moved two of the three targets:

  roadmap-parser.cts  validate.cts:210 -> :218   (const g = capturing ? 1 : 0)
                      state.cts:1715   -> :1752  (const bg = … 'bracket' ? 1 : 0)
  roadmap.cts         verify.cts:2229  -> :2355  (phaseTokenMatches 3-arg form)

`state.cts:1715` had drifted 37 lines and now lands on the retirement skip, not
the capture-offset idiom the sentence is about — the citation read as evidence
for a claim the cited line does not support.

planning-workspace.cts's `config-loader.cts:618/:649` was checked and is still
correct; left alone.

Comment-only. Build, drift guard and the bracket suites re-run unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#2761): scope the version-less bracket milestone heading too (B1)

computeSectionEnd and the preambleCutoff scan in extractCurrentMilestone
(roadmap-parser.cts) only recognized a milestone boundary heading that
carried a vN.N token or a status emoji. The ADR-canonical bracket
heading (## [GSD.02] Foundation) carries neither, so on that shape
computeSectionEnd fell through to content.length (sweeping every LATER
milestone into scope) and preambleCutoff fell back to the current
milestone's own offset (leaking every PRIOR milestone's bracket phases
into the preamble, whose Phase-N: strip regex never matches them).

Under the bracket scope branch, both sites now also accept a
`#{1,2}\s+\[CODE.MM\]` boundary, built from phase-id.cts's BRACKET_ID_SRC
(single owner of the bracket-id grammar) rather than a re-typed literal.
`#{1,2}` is the deliberate discriminator: a bracket PHASE heading is
level 3 and shares the same `[CODE.MM]` prefix, so a `#{1,3}` boundary
would swallow it too. Reachable only when bracketScopeConvention ===
'bracket' was already resolved (i.e. the bracket scope branch actually
fired), so version-bearing/emoji headings and non-bracket conventions
take the exact pre-existing code path byte-identically — confirmed by
the full adr-612 suite staying green.

Inverts the four DEFECT assertions in the
"#612 PR-2 CHARACTERIZATION: a version-less bracket milestone does not
scope" describe block (tests/adr-612-bracket-phase-counting.test.cjs)
into their regression-proof form, per the block's own doc comment, and
reframes the describe title/comments accordingly. Corrects the
.changeset/2761-bracket-read-tolerance.md fragment, which described the
directory-side version-less gap as an open, un-closed bound.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): thread sentinelPhases into validate health's W006 loop (B2)

cmdValidateHealth's W006 loop (src/verify.cts) destructured only
roadmapPhases from buildRoadmapPhaseVariants, not sentinelPhases —
unlike cmdValidateConsistency, which already skips sentinelPhases with
the identical guard a few hundred lines up. A heading-only bracket
icebox/pre-milestone entry ([GSD.999] / [GSD.00]) therefore gained a
false W006 "no directory on disk" from validate health while validate
consistency correctly stayed silent on the very same ROADMAP — the two
validators contradicting each other.

Threads sentinelPhases through and skips it before the existsOnDisk
check, mirroring the consistency guard exactly. Gated the same way
sentinelPhases already is (empty unless phase_id_convention is
'bracket'), so a legacy repo's W006 reading — including its own
pre-existing wart where a legacy `### Phase 999:` still warns on both
verbs — is untouched; confirmed by the existing "INHERITED WART,
unchanged" test staying green.

Adds the paired-agreement regression test (#612 PR-2 B2 describe block
in tests/adr-612-bracket-read-tolerance.test.cjs): a sentinel-only
bracket roadmap must produce no missing-directory warning from EITHER
validator, plus a CONTROL proving a real phase with no directory still
warns on both. Confirmed red (health false-W006) against the pre-fix
code before applying the fix.

Corrects the .changeset/2761-bracket-read-tolerance.md fragment, which
described the asymmetry as already closed and in the wrong direction
(it credited validate health with already staying silent, when health
was the one falsely warning).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#2761): pin mixed-shape preamble cutoff and boundary heading levels

Closes two self-flagged coverage gaps in the B1 fix (commit 08d5b0c4)
ahead of adversarial review. No src change — all three new tests are
green against the code as committed.

1. earliest-of-either preambleCutoff comparison: only exercised where
   the version/emoji match and the bracket match happen to land on the
   same heading. Adds the mid-migration mixed shape (version-bearing
   PRIOR + version-less CURRENT) and asserts scoping outcomes (accepts
   booleans + total_phases), not internals.

2. `h.level <= 2` conjunct in computeSectionEnd: provably redundant
   whenever the selected milestone heading is level 2 (every existing
   fixture), since `h.level > level` alone already implies it there —
   a mutant deleting the conjunct would have survived every prior test
   in this file. Adds a level-3 CURRENT-heading fixture (with a real
   PRIOR milestone so the preamble side-channel can't independently
   rescue the truncated phases) that makes the conjunct's deletion
   test-visible, confirmed by hand-mutating a throwaway copy of the
   compiled output (never touching tracked src or the real build) and
   observing the assertion flip. Also pins a level-1 companion case
   (#{1,2} tolerance, not just level 2).

NOT included here: the other mixed-shape direction (version-less PRIOR
+ version-bearing CURRENT) turned out to be a genuine, currently-unfixed
gap — reported separately rather than silently patched or weakened, per
instruction not to touch src while a probe run is in flight.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): engage bracket boundaries when the current milestone heading is version-bearing (B3, self-caught)

Found during round-2 self-verification of B1 (commit 08d5b0c4), while
closing the mixed-heading-shape coverage gaps flagged in my own review
notes. The B1 fix resolved `bracketScopeConvention` only inside the
`if (headingMatches.length === 0)` gate that also drives SELECTION's
own bracket fallback (which heading counts as "current"). That gate is
correct for selection, but `bracketScopeConvention` also feeds
computeSectionEnd's and preambleCutoff's boundary detection further
down — which accidentally inherited selection's gate instead of having
its own.

Trigger shape: the CURRENT milestone heading is itself version-bearing
(`## [GSD.02] v2.0: Current Milestone`), so the primary version-string
match succeeds immediately — headingMatches.length !== 0 from the very
first check — and the entire bracket-resolution branch was skipped. A
sibling milestone (PRIOR or LATER) that is version-less then got
neither the version/emoji boundary rule (it has none) nor the bracket
boundary rule (never resolved), reproducing the original #612 defect
(total_phases falling back to the whole-disk count) through a
structural shape B1's own fixtures never exercised — every one of them
is uniformly version-bearing or uniformly version-less across all
three milestones, never mixed with CURRENT specifically being the
version-bearing one.

Fix: resolve `bracketScopeConvention` unconditionally, decoupled from
`headingMatches.length`. SELECTION is deliberately left untouched — the
`if (headingMatches.length === 0 && bracketScopeConvention === 'bracket')`
fallback that picks which heading is "current" keeps its original gate
byte-for-byte (confirmed by diff: that line is unmodified). Only the
convention *resolution* moved out from behind it, so boundary detection
can consult it regardless of which branch selected the heading. The
extra `resolvePhaseIdConvention` call this now costs on every
invocation (previously paid only when the version match found nothing)
is the accepted cost: a non-bracket repo still resolves to something
other than 'bracket' (or null on a poisoned env, caught exactly as
before), so `bracketMilestoneHeadingRe` stays null and every downstream
branch is byte-identical to today — confirmed by the full adr-612 +
roadmap-parser + state + verify + health-validation suite staying green
(1260/1260) and the all-version-bearing/legacy fixtures showing no
behavior change.

TDD: tests/adr-612-bracket-phase-counting.test.cjs describe block
"#612 PR-2 B3: bracket boundaries engage even when CURRENT is
version-bearing but a sibling is not" — 4 tests, confirmed red against
pre-fix code (leak-in booleans true/true, total_phases 4) before this
change, green after.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): reject same-milestone continuation headings as boundaries (B1)

Gate-2 adversarial review Blocker 1: the B1/B3 boundary fired on ANY
as the one currently selected — a version-less checklist/detail split
(`## [GSD.02] Foundation (Phase Details)`, or an ad-hoc continuation
heading) truncated the current milestone's own section instead of
being recognised as a continuation of it. The `(Phase Details)`
re-append only searches VERSION-STRING matches, so a version-less
continuation heading was cut out and never re-appended — a confidently
wrong, non-degraded phase count for a still-incomplete milestone
(repro8 case 1: 1/1/100 instead of 2/1/50; repro5: same, on a fully
version-less roadmap with no sibling milestones at all).

Introduces one shared helper, isBracketMilestoneBoundary(headingText,
level, selectedBracketId), used by both computeSectionEnd and the
preambleCutoff bracket scan, replacing the ungated `h.level <= 2 &&
bracketMilestoneHeadingRe.test(...)` inline check. `selectedBracketId`
(case-folded via phase-id.cts's foldBracketId, matching the branch's
own fold-before-identity convention) is derived from `selected[0]`,
which is the full matched heading line on BOTH selection paths
(version-string and bracket-fallback), so one extraction covers both.

Level cap stays at `level > 2` for now (temporary — ADR-612's content
discriminator replaces it in the next commit); same-milestone rejection
is the change this commit is scoped to.

DEVIATION from the reviewed plan, caught empirically: applying the
same-milestone rejection at the preambleCutoff site (as literally
specified) regressed an existing pin ("boundary heading level: a
level-1 CURRENT milestone heading also scopes correctly") and a
fenced-heading case (repro10 A3) — because preambleCutoff's job is
"where does the earliest milestone-shaped heading sit, scanning from
the TOP of the document," and the selected heading's own occurrence is
always a correct answer to that question regardless of same-id-ness;
rejecting it let the earliest-of-either comparison fall through to a
stray LATER heading instead. `selectedBracketId` is threaded through as
`null` at the preambleCutoff call site for this reason — bracket-shaped
(and, from the next commit, phase-tail) discrimination still applies
uniformly at both sites; only the same-milestone component is
call-site-specific, since it encodes a "keep scanning past this
heading" instruction with no counterpart in a top-of-document search.

Tests: new describe block "#612 PR-2 B1 round-2: a same-milestone
continuation heading is not a boundary" — RED-turned-GREEN fixtures for
repro8 case 1 and repro5, plus PINs for repro8 case 3 (trailing
different-id icebox still terminates) and repro10 A1 (all-version-
bearing + icebox + Phase Details stays exactly 2/1/50 — no double-count
from the same-milestone exclusion interacting with the pre-existing
detailsMatch re-append). syncedTotal()/syncedPercent() assertions
omitted from the repro10 A1 pin: that fixture carries dirs outside the
current milestone, which exposes the SEPARATE Major 1 defect
(cmdStateSync's body percent from an unfiltered disk scan) — asserted
once Major 1 is fixed, not here.

Full suite green (796/796 across the targeted adr-612 + roadmap-parser
+ state files); node scripts/lint-phase-id-drift.cjs clean; eslint
clean on both changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): bracket boundary discriminates by content, not heading level (B2)

Gate-2 adversarial review Blocker 2: three sites disagreed about which
heading levels are a bracket milestone. The selector
(roadmap-parser.cts's bracket-fallback SELECTION branch,
`^#{1,3}\s+\[CODE.MM\]`) and `isMilestoneBounded` (state.cts) both
admit level 1-3, but isBracketMilestoneBoundary's level cap only
admitted level 1-2 (`h.level <= 2`, from the B1 commit). A `###`-level
bracket milestone heading was therefore SELECTED and BOUNDED but never
TERMINATED: computeSectionEnd ran with level=3, a level-3 SIBLING
milestone survived the pre-existing `h.level > level` (not-deeper)
filter, failed the version/emoji test (version-less), then failed
`h.level <= 2` — falling through to `return content.length` and
sweeping the sibling milestone's own phases into the current one.
Reproduces trek-e's original #612 defect verbatim ("a safe degrade
became a confidently-wrong persisted number") on a heading level the
selector and bounding predicate both already admit (repro2 case C:
4/75% instead of 2/100%; mechanism confirmed directly via repro7 —
extractCurrentMilestone returned the whole 214-byte document).

ADR-612 Decision 1 (docs/adr/612-bracket-phase-id-convention.md:56)
specifies the discriminator as CONTENT, not level: "a phase heading is
a bracket followed by a digit-then-colon ([GSD.02] 05:); a milestone
heading is a bracket followed by a name." Replaces the `level > 2`
rejection with BRACKET_PHASE_TAIL_RE — built by interpolating
phase-id.cts's single-owner phaseHeadingPrefixSrcFor(ANY_BRACKET,
'bracket', false) plus the digit + optional-tag + colon tail every
phase-heading counter in this file already spells, not a re-typed
grammar — and widens the level check to a depth-sanity cap of 3
(mirroring the selector's own `#{1,3}` ceiling; NOT itself a
phase/milestone discriminator). Covers the dotted sub-phase heading
form (`[GSD.02] 05.03:`) via the same `[\w][\w.-]*` token, pinned by a
new fixture — the shape where a regex slip in the tail grammar would
hide.

preambleCutoff's own raw-scan regex is widened from `^(#{1,2})` to
`^(#{1,3})` in lockstep: the outer pattern's level ceiling must track
the helper's cap, or a level-3 PRIOR milestone heading is invisible to
that scan and its own phase heading leaks into the preamble
un-stripped (a real double-count this widening closes, verified
against repro2 case C directly).

The existing "boundary heading level: a level-3 CURRENT milestone
heading still scopes correctly" pin (3e562f12) now passes via a
DIFFERENT mechanism than before — its own neighbours are version-
bearing, so it previously passed via the version/emoji rule (the level
cap was never actually exercised by that fixture, per the round-2
review's own finding); with the content discriminator, the SAME
fixture's level-3 phase headings are now correctly excluded because
they are phase-tail-shaped, not because they are too deep. A
deliberate mechanism change, confirmed by re-running that test green
after this commit.

Also updates the "every selector call site declares the right
baseline" governance pin (adr-612-bracket-heading-selection.test.cjs):
BRACKET_PHASE_TAIL_RE is a new, legitimate ANY_BRACKET call site in
roadmap-parser.cts (always passing the literal 'bracket' convention,
since its only caller is already gated on bracketBoundaryActive) —
EXPECTED count bumped 1->2, with a matching BASE_SITES transcription
entry (identical src to every other ANY_BRACKET site, since the
function is pure).

Tests: new describe block "#612 PR-2 B2 round-2: the bracket boundary
is a CONTENT discriminator, not a level cap" — RED-turned-GREEN for
repro2 case C (exact total AND truthful percent, since
isMilestoneBounded already returns true at #{1,3}) and repro7's
mechanism, a PIN for the dotted sub-phase form, and a re-pin of repro8
case 3 (icebox) under the new mechanism.

Full suite green (907/907 across the targeted adr-612 + roadmap-parser
+ state + phase-id files); node scripts/lint-phase-id-drift.cjs clean;
eslint clean on all changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): fence-aware preamble cutoff on the bracket branch (Blocker 3)

Gate-2 adversarial review Blocker 3: preambleCutoff's bracket scan used
a raw content.match/matchAll — blind to fenced code blocks — while its
sibling computeSectionEnd (a few lines above it) already consumed
tokenizeHeadings(content), which strips fences. The two halves of one
boundary semantic disagreed about what a heading is.

A fenced markdown example in the preamble containing a bracket heading
(ADR-612's own docs do exactly this) was textually the earliest
`#{1,3} [CODE.MM]` match: preambleCutoff landed INSIDE the fence,
`preamble = content.slice(0, preambleCutoff)` ended with an unclosed
opener, and the unbalanced fence then blinded
getMilestonePhaseFilter's own tokenizeHeadings(scope) call — every
heading in the returned scope vanished, phaseCount degraded to 0, and
the pass-all filter admitted every directory on disk (repro11's
mechanism, confirmed directly: fence count 1/odd, tokenizeHeadings(scope)
-> only "Roadmap"). Regression vs round-1, which had no bracket pattern
to blind and so fell back to the correct heading (repro12 bracket row:
2/1/50 at round-1, 4/3/75 at HEAD).

Fixed by hoisting one tokenizeHeadings(content) call
(currentMilestoneHeadings) shared by computeSectionEnd and the
preambleCutoff scan, which now iterates that same fence-aware token
list instead of a raw regex. HeadingToken.text is already hash-stripped
and trimmed, so isBracketMilestoneBoundary needs no `^#{1,3}\s+`
re-derivation at this site (that spelling would not match h.text — a
note the round-2 review called out explicitly, confirmed while
porting). selectedBracketId stays `null` here, unchanged from the B1
commit's same-milestone-exclusion reasoning.

DISCLOSED, not fixed (explicitly out of scope per the round-2 review's
own minimal-fix note): the LEGACY (non-bracket) anyMilestonePattern
raw-match path shares the identical fence-blindness hazard and stays
byte-identical — a bracket repo whose preamble has a fenced
VERSION-BEARING heading still has the legacy raw-match win the
earliest-of-either min() (repro12's LEGACY control: 4/3/75, unchanged
across base/round-1/HEAD/this commit). Pinned here so a future reviewer
files this as a known, pre-existing gap rather than a new regression.

Tests: new describe block "#612 PR-2 Blocker 3 round-2: preambleCutoff
is fence-aware (bracket branch only)" — RED-turned-GREEN for repro12's
bracket row and repro11's mechanism (fence balance + non-degraded
phaseCount + correct per-directory admission), a PIN for repro12's
LEGACY control (the disclosed gap, explicitly unchanged), and a PIN for
repro10 A3 (a fenced heading INSIDE the current section must still not
terminate it).

Full suite green (1072/1072 across the targeted adr-612 + roadmap-
parser + state + phase-id + markdown-sectionizer files); node
scripts/lint-phase-id-drift.cjs clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): scope cmdStateSync's disk scan by milestone under bracket (Major 1)

Gate-2 adversarial review Major 1: `state sync` wrote a Progress
PERCENT computed from an UNFILTERED whole-disk scan, beside the
milestone-scoped total_phases/completed_phases it writes into the same
STATE.md via the refreshed frontmatter (syncStateFrontmatter ->
buildStateFrontmatter, which has always applied getMilestonePhaseFilter
for the READ path). cmdStateSync's own `fs.readdirSync` chain (the
WRITE-path scan) never called the milestone filter at all, unlike
buildStateFrontmatter's identical-purpose scan. One command therefore
wrote two contradictory numbers into one file: on the ADR-canonical
version-less bracket fixture (4 dirs, 3 complete; asserted milestone =
2 phases, both complete), base wrote total_phases:2/completed_phases:2
(correct, from the READ derivation) alongside body Progress 75% (wrong
— from the unfiltered WRITE derivation; repro3).

Fixed by threading `getMilestonePhaseFilter(cwd)` through the same
`.filter()` chain buildStateFrontmatter already applies, gated on
`syncConvention === 'bracket'` (falling back to a pass-all predicate
otherwise) — so totalDiskPlans/totalDiskSummaries/diskCompletedPhases/
syncTotalPhases become milestone-scoped under bracket, byte-identical
under legacy.

DEVIATION (approved, stated plainly): an earlier phrasing of this fix
called for mirroring buildStateFrontmatter's filter UNCONDITIONALLY.
Implemented GATED instead — an unconditional filter would ALSO move
every LEGACY repo's persisted percent, since the milestone-scoping-vs-
whole-disk divergence this closes is engine-wide, not bracket-specific.
The gate keeps legacy byte-identical, which is the binding constraint:
this is a bracket read-path PR, not a legacy behavior change.

Nit 2 (informational, no code change): 10 calls to
extractCurrentMilestone on a legacy repo cost 10 config.json
existsSync + 10 readFileSync (0 before B3); accepted, unmemoized cost,
unaffected by this commit.

Also folds in two minors from the round-2 review:
- Corrects .changeset/2761-bracket-read-tolerance.md: the sibling-
  exclusion sentence now states it holds at any heading level 1-3 and
  across a milestone split over two headings (true again now that
  Blockers 1 and 2 are fixed); the percent sentence states plainly that
  `state sync`'s body percent is now milestone-scoped under bracket,
  and unaffected under legacy.
- Records the read/write scoping divergence at currentMilestoneRawRanges
  (src/roadmap-parser.cts) in a comment: it did not receive B1/B2's
  bracket boundary fixes, currently harmless (its only consumer falls
  back to whole-content mutation, and every mutation there is still
  Phase-labelled-only, not bracket-widened), but live the moment the
  write path is bracket-widened — flagged so a future PR closes it in
  lockstep with that work, not after.

Tests: 6 pre-existing tests in tests/adr-612-bracket-phase-counting.test.cjs
needed fixture updates, not logic changes — they used the default
single directory (`GSD.02-01-setup`, phase "01"), which the SENTINEL/
retirement/mixed-heading fixtures in those tests never declare as a
real phase (only 04/05/06/999/etc are declared). Before this fix,
cmdStateSync's unfiltered scan counted that off-roadmap directory
anyway; after this fix the milestone filter correctly excludes it,
which for several of these fixtures made `state sync` a no-op (the
computed 0% coincided with STATE.md's initial template default) and
broke `syncedTotal()`/`syncedPercent()`'s ability to observe anything.
Updated each to pass an EXPLICIT directory naming one of the fixture's
REAL declared phases, preserving each test's original numerator/
denominator intent. One test — "shape 2 WRITE" — was substantively
rewritten: it was a CHARACTERIZATION of the Major 1 bug itself ("the
DISCLOSED legacy gap, mirrored — not closed"), and now correctly pins
bracket closing to 33% (agrees with the read path) while legacy stays
at the disclosed 60% (unchanged, deliberately, per the gating decision
above).

Full suite green: `npm test` 1449/1449 (0 fail, 0 skipped, 0 todo,
single-shard "all" run — includes issue-2765-brace-expansion-lockfile
passing); `npm run lint:ci` clean (0 errors; 2 pre-existing timing-
assertion warnings in files this PR does not touch); node
scripts/lint-phase-id-drift.cjs clean; node scripts/changeset/lint.cjs
ok.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): preambleCutoff identity is offset- and child-aware (round-3 Blocker 1)

Gate-2 round-3 re-verify Blocker 1 (NEW): the round-2 B1 deviation
(39c42a89) threaded `selectedBracketId` as the real value at
computeSectionEnd but as bare `null` at the preambleCutoff scan. The
deviation's rationale — "the selected heading's own occurrence is
always a correct earliest answer" — was right, but `null` disables the
same-milestone check for EVERY candidate, not just the selected one.
Any bracket-shaped heading earlier than the selected milestone was
accepted as a boundary regardless of identity: a same-id checklist/
overview heading preceding the version-bearing selected heading (cases
A, B — the version lands on the LATER half of a split, or a plain
overview heading with no "(Phase Details)" spelling), or a DIFFERENT-id
bracket-shaped PROSE heading with no children of its own sitting above
the current milestone's content (case D — `## [ADR.612] Heading
convention used by this roadmap`). In every case the region between
that false boundary and the real sectionStart was silently dropped —
a completed phase vanished and `state sync` persisted a confident 0%
where base and round-1 both correctly wrote 50%. Regression vs base
AND round-1 (not merely "under-fixed", per the round-3 review's own
severity note).

Fixed with two changes, both scoped to the preambleCutoff scan only
(computeSectionEnd already threads the real `selectedBracketId` and is
untouched):

(a) `h.offset === sectionStart` now bypasses BOTH the same-milestone
    check inside isBracketMilestoneBoundary (passing the REAL
    `selectedBracketId` for every other candidate) and the new child
    rule below — the selected heading's own position is definitionally
    the correct answer, so neither discriminator should run against it
    (rejecting it would mean rejecting the heading against ITSELF).
    Closes cases A and B — verified by the reviewer's own one-liner,
    reproduced here.

(b) New `bracketHeadingHasMatchingChild`: an otherwise-accepted
    candidate (bracket-shaped, not phase-tail-shaped, not the same id
    as the selected milestone) must ALSO have a next-strictly-deeper
    heading carrying its OWN bracket id to count as a boundary. This is
    what a genuine sibling milestone has (its own phase children share
    its bracket id — `## [GSD.01] Setup` / `### [GSD.01] 01: …`) and an
    unrelated bracket-shaped prose heading does not. A candidate with
    no such child at all (childless — e.g. an empty prior milestone, or
    one immediately followed by a same-or-shallower heading) degrades
    to NOT a boundary — over-inclusive, the safe direction: its own
    heading text stays in the preamble, contributing nothing to any
    phase count (not phase-shaped). Closes case D, which (a) alone does
    not — verified: without this rule, `[ADR.612]`'s prose heading is
    indistinguishable from a genuine prior sibling at this site.

As a side effect, also neutralizes Nit 2 (a colon-less `[GSD.02] 05`
heading spuriously terminating the preamble): a colon-less bracket
heading is not phase-tail-shaped so isBracketMilestoneBoundary alone
would accept it, but it is — precisely because it is malformed/
incomplete rather than a real milestone — childless, so the child rule
rejects it too. Pinned.

Known interaction with the fence-blind SELECTION path (disclosed by
the reviewer, not introduced here, tracked for the next commit): when
`sectionPattern` selects a FENCED version-bearing heading (an
extremely pathological shape — a fenced example whose text happens to
match STATE's asserted version), no token exists at `sectionStart`, so
the `h.offset === sectionStart` bypass never fires and the loop falls
through to the ordinary same-id / child-rule checks. This composes
with the round-3 Major 1 fix (next commit) rather than introducing a
new defect — SELECTION itself is untouched by any of this — but is
worth stating plainly rather than rediscovering.

Tests: new describe block "#612 PR-2 Blocker 1 round-3: preambleCutoff
identity is offset- and child-aware" — RED-turned-GREEN for cases A, B
(rv-attack1) and D (rv-attack1b) with syncedTotal()/syncedPercent()
assertions (the persisted 0% is the point), a PIN for a genuine prior
sibling with real children (still excluded), a PIN for a childless
prior sibling (degrades to not-cutting, over-inclusive/safe), a PIN
for the colon-less Nit 2 shape, and the reviewer's rv-mech1 mechanism
re-run as a proper test (scope now equals the full input document,
phaseCount 2, both dirs accepted).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 937/937 pass (930 baseline + 7 new). node
scripts/lint-phase-id-drift.cjs clean; eslint clean on both changed
files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): fence-aware version/emoji half of preambleCutoff on the bracket branch (round-3 Major 1)

Gate-2 round-3 re-verify Major 1 (NEW): ff6bf0a8 (round-2 Blocker 3)
made the BRACKET half of preambleCutoff's "earliest milestone-shaped
heading" search fence-aware, but left the VERSION/emoji half a raw
`content.match` even on the bracket branch. A fenced VERSION-BEARING
example heading in a bracket repo's preamble (ADR-612's own docs
illustrate the LEGACY heading shape exactly this way, inside a fenced
authoring-guide block) was still textually the earliest match for that
raw regex, winning the min() and un-suppressing a wrong persisted 75%
that base correctly suppressed (rv-attack3c fixture C1: base
suppressed the percent entirely — `isMilestoneBounded` false — HEAD
wrote 75% where truth is 50%).

Fixed by deriving the version/emoji half from the SAME fence-aware
`currentMilestoneHeadings` token list as the bracket half, on the
bracket branch only — the exact `/^Phase\s+\S/i` / `/v\d+\.\d+|✅|📋|🚧/i`
pair `computeSectionEnd` already uses against `h.text`. The non-bracket
(legacy) path is untouched: it keeps the raw `content.match`, byte-
identical to before, including its own fence-blindness (repro12's
LEGACY control, pinned unchanged in the round-2 Blocker-3 test block —
not re-pinned here to avoid duplicating an already-covered assertion).

Not rated Blocker (per the review) because it is not a regression vs
round-1 and the fixture (a version-BEARING fenced example in a bracket
repo) is rarer than the already-fixed bracket-heading case; still
fixed now rather than disclosed, per this arc's own precedent (every
prior "disclose instead of fix" call in this PR has been overturned on
re-review).

Tests: new describe block "#612 PR-2 Major 1 round-3: preambleCutoff's
version/emoji half is fence-aware on the bracket branch" — RED-turned-
GREEN for case C1 (readTotal + syncedPercent, so the persisted 75% is
directly observed, not just the read-path total), PIN for case C2 (the
already-fixed fenced-bracket-heading shape, unchanged).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 939/939 pass (937 + 2 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean on both changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): correct changeset claims + mark runtime-gated BASE_SITES row (round-3 minors)

Gate-2 round-3 re-verify Minor 2: three changeset sentences in
.changeset/2761-bracket-read-tolerance.md were overstated in a new
direction after round-2:

- The split-milestone claim ("across a milestone split over two
  headings") was true only when the version-bearing heading came
  FIRST (repro8 case 1); false when it came LATER (round-3 Blocker 1
  case A). Now restated to say plainly "with the version-bearing
  heading in EITHER position" — true again now that round-3's Blocker
  1 fix lands earlier in this range.
- The "counted from the phases... rather than from every directory on
  disk" claim was false on cases A/B/D (a strict subset of the
  milestone's own phases). Restated as "ALL of the phases... not a
  subset", and extended to state that an unrelated bracket-shaped
  heading with no phase children of its own (case D's `[ADR.612]`
  shape) does not truncate the milestone either — true now, not before.
- "Each widened read is SELECTED by the project's phase_id_convention"
  was literally false for BRACKET_PHASE_TAIL_RE, which is RUNTIME-gated
  (via its only caller, isBracketMilestoneBoundary, itself only
  consulted when bracketBoundaryActive) rather than selector-gated.
  Restated behaviourally: "every widened read ENGAGES only when the
  project's resolved phase_id_convention is bracket" — true for both
  gating mechanisms, so it no longer implies a selector call this site
  does not make.

Minor 1: the STRUCTURAL IDENTITY test's BASE_SITES row for
BRACKET_PHASE_TAIL_RE (added in the B2 commit) asserts a property of
`phaseHeadingPrefixSrcFor` — the function — not of the call site; it
would pass unchanged even if the site were deleted. Safety at that
specific site rests entirely on a runtime gate the test cannot see.
Added `runtimeGated: true` to the row and threaded it into the
generated test's own title (`… [runtime-gated, not selector-covered]`),
so the gating mechanism is visible in test OUTPUT, not only in a source
comment that could drift silently.

No production code changed. Targeted suite green (48/48 in the
affected file); `node scripts/changeset/lint.cjs` ok; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): harden round-3 preamble cutoff — subtree child scan + level cap

Team-lead review of f87bba0e found two edges in the round-3 preamble-
cutoff code, both hardened here.

AMENDMENT 1 — bracketHeadingHasMatchingChild (2e06aef5) checked only
`headings[index + 1]`, the IMMEDIATE next heading, not the candidate's
whole subtree. A genuine prior sibling milestone whose section opens
with a non-bracket subsection before its first phase heading
(`## [GSD.01] Setup` / `### Notes` / `### [GSD.01] 01: Old`) was
therefore wrongly rejected as a boundary — its real phase heading sits
TWO headings deep, not one — leaking its entire section into the
preamble unstripped.

CONFIRMED RED, not merely theoretical (built and ran the fixture
against f87bba0e before touching the fix, per instruction): scope
membership DOES drive the disk-side filter on this shape.
`GSD.01-01-old`'s directory was wrongly admitted into the CURRENT
milestone's filter via the leaked heading's qualified key
(`GSD.01-01`) — 3/2/67% where truth is 2/1/50%.

Fixed by scanning the candidate's full SUBTREE: continue past a
non-matching deeper heading instead of returning false on the first
one; only a same-or-shallower heading actually closes the subtree and
yields "no match found". A candidate whose entire subtree closes with
no same-id hit (including a genuinely childless one) still degrades to
`false` — over-inclusive, safe, unchanged from before.

AMENDMENT 2 — c483552a ported the version/emoji half of preambleCutoff
to the token-based scan with no level cap; the raw
`content.match(anyMilestonePattern)` it replaced was anchored
`^#{1,3}\s+`. A level-4+ version-bearing heading in the preamble
(`#### v2.0 notes`) therefore won the scan on the bracket branch where
the raw pattern — and the legacy path, unaffected — ignores it
outright. Fixed with `if (h.level > 3) continue;`, mirroring the
depth-sanity cap isBracketMilestoneBoundary already applies to the
bracket half of this same scan.

Tests: new describe block "#612 PR-2 round-3 hardening: subtree child
scan + level cap on preambleCutoff" —
- RED-turned-GREEN for the Notes-intervening fixture: exact 2/1/50 (was
  3/2/67), plus the disk-filter observable (`GSD.01-01-old` now
  correctly excluded).
- PIN for the level-4 preamble heading: the scope now PRESERVES the
  heading's text (was silently dropped before this fix — harmless in
  this minimal fixture's total_phases specifically, since the dropped
  text carries no phase-shaped content, but a real correctness gap
  against the raw pattern's own ceiling) — asserted via scope content,
  not total_phases, since that number is invariant here either way.
- PIN for the LEGACY control on the same level-4 shape — unchanged,
  confirming the raw content.match path is untouched.

Re-verified the existing genuine-prior-sibling and childless-sibling
pins (round-3 Blocker 1 commit) still pass under the subtree scan —
both fixtures' outcomes are unchanged since their same-id hit (or its
absence) was already at the first deeper heading.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 942/942 pass (939 + 3 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean on both changed files. Full `npm test` + `npm run
lint:ci` deferred to the team lead's own run per instruction.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): bracketHeadingHasMatchingChild requires a same-id PHASE child (round-4 Blocker 1)

Gate-2 round-4 re-verify Blocker 1 (NEW): the round-3 hardening's
subtree scan (fbfd0fca) proved SAME-ID-NESS but never asked whether
the matching child was PHASE-shaped. Case F1 re-opens round-3's case D
one heading later: `## [ADR.612] Heading convention` is followed by
its OWN sub-heading `### [ADR.612] Examples` — same bracket id as the
candidate, but MILESTONE-shaped (a name, no digit-then-colon), not a
phase. Same-id-ness alone satisfied the subtree scan and re-cut the
preamble at exactly the shape the round-3 hardening was written to
close.

Failing input: `## [ADR.612] Heading convention` / `### [ADR.612]
Examples` (prose) / `### [GSD.02] 01: One` (the current milestone's
own first phase, now unreachable) / `## [GSD.02] v2.0: Foundation` /
`### [GSD.02] 02: Two`. Truth 2/1/50. HEAD read 1/0/0, and `state sync`
reported "nothing to do" (exit 0, `{synced:true,changes:[]}`) because
its wrong 0% happened to equal the STATE.md seed — a half-done
milestone read as untouched with no write-path signal at all.

Fixed with the reviewer's one-conjunct addition: a same-id child only
counts if it is ALSO phase-tail-shaped (`BRACKET_PHASE_TAIL_RE`) — the
same single-owner discriminator `isBracketMilestoneBoundary` already
uses one level up for the identical distinction (phase vs milestone),
reused here rather than re-derived. This is exactly what the
changeset's own wording already claimed ("no phase children of its
own") — the code now matches the sentence rather than the other way
around.

Docstring updated at the function itself: the rule is "same-id PHASE
child", not "same-id child".

Tests: new describe block "#612 PR-2 round-4 Blocker 1: the same-id
child must be PHASE-shaped" — RED-turned-GREEN for F1 with
syncedTotal()/syncedPercent() (the persisted 0% — and the
report-nothing-to-do write-path silence — is the point), PINs for F11
(colon-less same-id child) and F11b (bullet-only phase list): both
correctly stay excluded either way, and the leak the phase-shape
requirement newly creates for these two shapes is INERT — a colon-less
heading forms no qualified key (getMilestonePhaseFilter's own
phase-heading pattern requires the colon too) and a bracket bullet
never matches the legacy-only BULLET_PHASE_LINE_PATTERN — confirmed
directly via getMilestonePhaseFilter, not merely inferred. Re-verified
the four existing child-rule pins (F2 subtree-closure, F3 deep-nested
same-id, F4 level-4 same-id, F5 childless-at-EOF) are unaffected by the
phase-shape requirement, since every one of them already used a
colon-bearing same-id child.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 946/946 pass (942 + 4 new). Zero drift measured across the full F1-F12
corpus except F1 itself (F9/F10/F12 remain red, deferred to the
separate Major 1 fix). node scripts/lint-phase-id-drift.cjs clean;
eslint clean on both changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): fence-aware phase counting, milestone bounding, and bracket-fallback selection (round-4 Major 1)

Gate-2 round-4 re-verify Major 1 (NEW): roadmapPhaseCount is a
fence-blind raw `.exec()` over the scope string, duplicated in TWO
independent copies (buildStateFrontmatter's read path, cmdStateSync's
write path). With the bracket alternative now compiled into it (#612),
a fenced EXAMPLE phase heading in the preamble inflates total_phases
and persists a wrong percent that base got right. Two further
fence-blind sites participate: isMilestoneBounded (a raw
`.test(roadmapRaw)`) and the bracket-fallback SELECTOR inside
extractCurrentMilestone (a raw `content.matchAll`, only reachable when
version-string selection finds nothing).

Failing inputs:
- F10 (clean isolate, version-bearing selection): a fenced
  `### [GSD.02] 05: Example phase` in the preamble inflates
  total_phases 2->3, persisting 33% where truth is 50%. LEGACY control
  on the same shape is correct on every build — not a pre-existing
  hazard being inherited, bracket-only.
- F9 (version-less selection): a fenced example carrying the project's
  OWN milestone id additionally confuses the bracket-fallback selector
  (the fenced heading gets SELECTED), compounding with the same
  fence-blind counter. base suppressed the percent; round-1 and HEAD
  both wrote 33%.
- F12 (isMilestoneBounded isolate): the ONLY `[GSD.02]` heading in the
  document is inside a fence, and the asserted milestone genuinely has
  no section at all — HEAD persisted 67% where base correctly
  suppressed the percent (the milestone is absent from the roadmap).

Fixed at the CONSUMER level, not the producer — extractCurrentMilestone's
returned scope string is deliberately UNCHANGED, since every other
consumer of that string needs its full content fidelity and legacy
identity forbids touching the shared string (this branch's own
precedent, ff6bf0a8/c483552a, was producer-level; here the ruling is
consumer-level because the string is shared far more broadly than the
two round-3 fixes' narrower producer edits):

(a) New `countRoadmapPhaseHeadings` (src/state.cts, immediately above
    extractRetiredPhaseNumbers) — ONE shared implementation for both
    call sites, replacing two independently-maintained copies. BRACKET
    convention counts via `tokenizeHeadings(scope)` at levels 2-4,
    testing each heading's hash-stripped text directly — fence-aware by
    construction, since tokenizeHeadings never produces a token for a
    fenced line. LEGACY convention keeps the exact pre-existing raw
    `.exec()` loop, byte-for-byte. A pre-existing, deliberately
    PRESERVED asymmetry between the two original call sites — the read
    path always excluded a bare `/^999\b/` token, the write path never
    did — is threaded through as an explicit
    `includeUnconditional999Check` parameter per call site, so sharing
    the implementation does not silently unify (and thereby move)
    either total.
(b) isMilestoneBounded's bracket branch now scans
    `tokenizeHeadings(roadmapRaw)` for a matching heading (level <= 3)
    instead of a raw regex test. Legacy version-string branch untouched.
(c) The bracket-fallback SELECTOR now builds its candidate set from
    `tokenizeHeadings(content)` instead of `content.matchAll`,
    reconstructing a match-shaped array so every downstream consumer of
    `headingMatches` sees the identical shape the raw-regex path always
    produced. This is the ONE site in this entire arc where SELECTION
    itself changes — selection SEMANTICS are otherwise unchanged (same
    pattern, same first-match-wins by document order); only the
    candidate set is now fence-aware. Pinned that unfenced selection is
    byte-identical.

Zero drift measured across the full historical corpus (repro2-13,
rv-attack1/1b/3c, rv-mech1, rv2-amend1/2, and F1-F11b) except the three
target fixtures.

Tests: new describe block "#612 PR-2 round-4 Major 1: four fence-blind
sites on the bracket path" — RED-turned-GREEN for F10 (with
syncedTotal()/syncedPercent()) and F9 (both layers), PINs for F10's
LEGACY control and F10c (non-phase-shaped fence, unaffected either
way), RED-turned-GREEN for F12 (asserts the percent KEY is absent from
`state json`'s output and that `state sync`'s body stays at its
unmodified seed — the persisted-suppression signal, not merely a
total_phases number), and an explicit PIN that unfenced bracket-fallback
selection (first real milestone-shaped heading wins, no fences
involved) is unaffected.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 952/952 pass (946 + 6 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean on all three changed files.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): correct docstring overstatement + stale consumer-count sentence (round-4 minors)

Gate-2 round-4 re-verify Minor 1 + Nit 1. No production code changed.

Minor 1: bracketHeadingHasMatchingChild's own docstring said a
rejected (no-same-id-PHASE-child) candidate's degrade "contributes
nothing to any phase count" — true of the candidate's OWN heading
text, but not of its SUBTREE, which is what actually stays in the
preamble. F7 (`## [GSD.01] Setup` / `### [GSD.07] 01: Foreign`) shows
a DIFFERENT-id bracket PHASE heading inside a rejected candidate's
subtree DOES form a qualified key and CAN admit a foreign directory —
3/2/67%, stable across base, round-1 and HEAD (base via its own
pass-all degrade). Not a regression, still the declared over-inclusive
/ never-under-inclusive safe direction — the comment now says that,
with F7's numbers cited, at the call site that actually decides
`isBoundary` (roadmap-parser.cts's preambleCutoff loop) rather than
only at the helper's own definition.

Minor 2 (changeset) — VERIFIED, no wording change needed: re-ran F1,
F9, F10, F12 at this HEAD. The "no phase children of its own... does
not truncate it either" sentence (naming the `[ADR.612]` shape
directly) is now literally true — F1 reads 2/1/50. The "counted from
ALL of the phases... not a subset" sentence is now true on every
measured shape — F1/F9/F10 all read 2/1/50, F12 correctly suppresses
the percent. No carve-out for F9/F10 is needed since round-4 Major 1
(3be5c412) closes both; per the fix-round instruction to "only carve
out anything genuinely left," nothing is.

Nit 1: tests/adr-612-bracket-heading-selection.test.cjs's runtimeGated
row claimed `BRACKET_HEADING_INTRO_RE` has "no other consumers" — true
when round-3's f87bba0e wrote it, stale since 2e06aef5 (round-3's own
earlier commit) had already added two more uses inside
bracketHeadingHasMatchingChild. Corrected to state the true count
(three consumers) and re-confirm the conclusion is unaffected: all
three are still nested inside the same bracketBoundaryActive runtime
gate, and BRACKET_HEADING_INTRO_RE is built from BRACKET_ID_SRC, not
phaseHeadingPrefixSrcFor, so it was never a selector site regardless of
consumer count.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 952/952 pass (comment-only changes, no count movement). eslint
clean; node scripts/changeset/lint.cjs ok.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): restore the bracketId guard in countRoadmapPhaseHeadings (round-5 Blocker 1)

Gate-2 round-5 re-verify Blocker 1 (NEW, introduced by 3be5c412): the
merge that created the shared countRoadmapPhaseHeadings helper dropped
the `bracketId && ` guard both original inline loops carried before
calling isSentinelPhaseId. Every other isSentinelPhaseId call site in
src/ (roadmap-parser.cts, roadmap.cts, validate.cts x2, verify.cts)
keeps the guard; state.cts's shared counter was the only one of seven
without it.

When the phase-heading-intro grammar's LEGACY alternative matches (a
`### Phase 00:` heading in a `phase_id_convention: "bracket"` repo —
the mid-migration shape this PR exists for), the bracket capture group
is `undefined`, so the unguarded call became
`isSentinelPhaseId("undefined-00", 'bracket')` — measured TRUE, so
phase 00 (and 000, 0a, 0.5, 999.1 — any token whose splice with the
literal string "undefined" happens to fall in a sentinel range) was
silently dropped from the denominator. `getMilestonePhaseFilter` (which
still carries its own guard) counts the phase and admits its directory
regardless, so the filter and the counter disagree — a half-done
milestone reads as 100% complete, persisted.

One-line fix, restoring the guard every sibling call site already has:

    if (bracketId && isSentinelPhaseId(`${bracketId}-${token}`, 'bracket')) continue;

Line count: `git diff --stat src/state.cts` -> 1 file changed, 1
insertion(+), 1 deletion(-).

Tests: new describe block "#612 PR-2 round-5 Blocker 1:
countRoadmapPhaseHeadings restores the bracketId guard" — RED-turned-
GREEN for G3 (3/2/67, was 2/2/100) and G3d (the mixed bracket+legacy
mid-migration shape, same numbers) with syncedTotal()/syncedPercent(),
PIN for G3's legacy control (unaffected), PIN for G3b (isolates the
counter with no directory to admit), PIN for G3c (legacy 01/02 only,
no sentinel-shaped token present).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 957/957 pass (952 + 5 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): extractRetiredPhaseNumbers is fence-aware on the bracket path (round-5 Major 1)

Gate-2 round-5 re-verify Major 1 (NEW) — a FIFTH fence-blind site on
the bracket path, missed by 3be5c412's own enumeration of "four".
extractRetiredPhaseNumbers' line scan (`scope.split(/\r?\n/)`) has no
fence awareness. This PR compiles the bracket alternative into
`introSrc` ("the retirement filter has to widen with the counter it
protects" — the function's own pre-existing comment), so a FENCED
authoring EXAMPLE showing the #1514 retirement gesture in bracket
spelling is now indistinguishable from a real one: it retires a
genuine phase, shrinking the denominator and persisting a confident
100% where base correctly read 50%.

Fixed with the SAME consumer-level ruling this arc has used at every
other fence-blind site, reusing markdown-sectionizer's existing
exported `stripFencedCode` rather than hand-rolling a second fence
parser (single-owner rule) — retirement lines are BULLETS, not
headings, so `tokenizeHeadings` doesn't serve here; `stripFencedCode`
is the general-purpose fence stripper the tokenizer itself is built on.
Gated on `convention === 'bracket'`; the LEGACY line scan stays the raw
`scope` string, byte-identical — its own fenced-example hazard is
pre-existing (wrong at base too) and out of scope.

Line count: `git diff --stat src/state.cts` -> 1 file changed, 9
insertions(+), 2 deletions(-) — one import added, four lines inside
the function (a comment + the `scanScope` computation + the changed
`.split()` call).

Tests: new describe block "#612 PR-2 round-5 Major 1:
extractRetiredPhaseNumbers is fence-aware on the bracket path" —
RED-turned-GREEN for G2 (fenced example in the preamble) and G2b (the
same example placed INSIDE the milestone section, ruling out a
preamble-scoping artifact — the site itself was fence-blind wherever
the fence sits), PIN for the LEGACY control (unchanged, pre-existing,
out of scope — base is wrong on this shape too).

Also folds in the "four fence-blind sites" correction: 3be5c412's
commit message and any restatement of it should read FIVE going
forward; this commit's own message states the count correctly.

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 960/960 pass (957 + 3 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): state sync's counter excludes the bracket 999 icebox token (round-5 Major 2)

Gate-2 round-5 re-verify Major 2 (NEW) — `includeUnconditional999Check`
left `state json` and `state sync` reporting different totals for one
bracket repo. Under bracket, READING-B puts the sentinel in the
bracket, so `isSentinelPhaseId("GSD.02-999", 'bracket')` is false —
the `/^999\b/` TOKEN rule is the only thing excluding a
`### [GSD.02] 999:` icebox heading, and it ran on the read path
(buildStateFrontmatter, `true`) and on getMilestonePhaseFilter
(unconditional), but not on cmdStateSync's own counter (`false`). One
`state sync` call could leave a single STATE.md with its own
frontmatter (percent 50, from the read-path re-sync inside
writeStateMd) and body (percent 33, from the write-path counter that
alone still counted the icebox heading) disagreeing — falsifying this
PR's own stated invariant that sharing countRoadmapPhaseHeadings made
"the two counters must see the same phases" structural.

Functional change is one argument, exactly as specified: the write
call site now passes `syncConvention === 'bracket'` instead of the
literal `false`. `syncConvention === 'bracket'` is `false` for every
non-bracket value, so the LEGACY path resolves to the exact same
`false` it always did — this file's own pre-existing, deliberately-
unchanged read/write divergence on that path is untouched. The READ
site (`:1860`) is NOT touched — its historical behaviour applied
`/^999\b/` to legacy and bracket alike, so changing it would move
legacy READ totals, exactly the class of mistake this arc's own
Blocker 1 (this round) was.

Line count: the functional change is ONE argument
(`false` -> `syncConvention === 'bracket'`); the surrounding comment
was rewritten because the previous one asserted the now-superseded
behaviour ("preserving this file's pre-existing... divergence... a
bare 999 token is not excluded here") and leaving it would mislead the
next reader — not a structural change.

Tests: new describe block "#612 PR-2 round-5 Major 2: state sync
excludes the bracket 999 icebox token like the read path" —
RED-turned-GREEN for G1, asserting `state sync`'s body percent equals
`state json`'s own percent (both 50, not 33 vs 50), PIN for G1's
legacy control (33 vs 50 unchanged, deliberately).

Targeted suite green: `node --test tests/adr-612-*.test.cjs
tests/roadmap-parser.test.cjs tests/state.test.cjs tests/verify.test.cjs`
-> 962/962 pass (960 + 2 new). node scripts/lint-phase-id-drift.cjs
clean; eslint clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): restore indent parity at the two line-start-anchored bracket-heading reconstructions (round-5 Minor 1)

`HeadingToken.offset` (tokenizeHeadings) is the LINE-START character offset,
not necessarily the `#` character's own offset — a ≤3-space-indented ATX
heading has both. Two round-4 reconstructions built on tokenizeHeadings
inherited this gap and accepted indented headings their raw, line-start-
anchored predecessors (`^#{1,3}\s+\[...`) never matched:

  1. roadmap-parser.cts's bracket-fallback SELECTOR (extractCurrentMilestone,
     ~line 377) — an indented, version-less `[GSD.02]` milestone heading
     could be reconstructed into headingMatches, then mis-parsed downstream
     (selectedBracketId null, level fallback to 1), leaking a SIBLING
     milestone's phases into the counted scope (G6: HEAD read 3/2/67 instead
     of 2/1/50 — a real phase heading's own directory belonging to the NEXT
     milestone got counted).

  2. state.cts's isMilestoneBounded (~line 1571) — the same gap let an
     indented-only `[GSD.02]`-shaped heading wrongly bound a milestone
     absent from the roadmap, un-suppressing a percent that should stay
     suppressed (mirrors round-4's F12 fenced-only case, but via indentation
     instead of a fence).

Fix: one added conjunct per site — `content[h.offset] === '#'` (source-named
`roadmapRaw` in state.cts) — filtering to tokens whose LINE-START offset IS
the `#` character, i.e. exactly the set the raw line-start-anchored regex
would ever have matched. Restores byte-for-byte raw parity; no other logic
in either function changes. computeSectionEnd and the preamble version/
emoji-token scan are untouched, as instructed — they consumed tokenizeHeadings
output before this arc and are out of scope here.

Also corrects roadmap-parser.cts's now-provably-false docstring claim that
`h.offset` is unconditionally "the same `#`-character coordinate space
`content.match().index` used" — true only for the survivors of the new
filter, not for every token tokenizeHeadings produces.

Line count: the FUNCTIONAL change is exactly 2 lines (one added `&&` conjunct
per call site — `git diff --stat` on the two source files shows 20
insertions/7 deletions, but only those 2 lines change behavior; the rest is
docstring/comment rationale, per this round's "state the line count" ask).

TDD: both fixtures verified RED at HEAD before this commit, GREEN after,
via /tmp/pr612rev/rv5-attack.cjs G6 and a locally-authored isMilestoneBounded-
isolating probe (G6 alone doesn't distinguish the two sites — its unindented
phase headings already satisfy isMilestoneBounded's loose prefix regex
either way, so a second, indentation-only fixture was needed to prove that
site's fix is not a no-op; verified by temporarily reverting just that one
conjunct, confirming 100%-wrongly-bounded RED, then restoring it, confirming
suppressed-percent GREEN).

New tests (adr-612-bracket-phase-counting.test.cjs):
  - RED (G6): indented version-less bracket milestone heading — 2/1/50, not
    the pinned-before-fix 3/2/67.
  - PIN (G6c unindented control): identical document, no indent — 2/1/50
    unaffected on every build.
  - RED (isMilestoneBounded site, indented-ONLY): mirrors round-4's F12
    shape (fenced-ONLY → indented-ONLY) — percent stays suppressed instead
    of the pinned-before-fix wrongly-bounded 100%.

Full G1-G10 (rv5-attack.cjs) + G2b/G3c/G3d/G6c (rv5b.cjs) re-verified
zero-drift against TRUTH after this change. Targeted suite (adr-612-*,
roadmap-parser, state, verify): 962 -> 965 (+3), 0 fail.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): changeset discloses counting-set narrowing + correct stale consumer-count sentence (round-5 minors)

FIX 5 (Minor 2): .changeset/2761-bracket-read-tolerance.md did not disclose
that bracket phase-heading counting is narrower than the raw-regex
predecessor in two ways the review's G4/G5 fixtures surfaced: a level-5
heading (`##### [GSD.02] 05: ...`) is no longer counted (the counter's
tokenizeHeadings scan caps at level 4, matching the selector/isMilestoneBounded
ceiling), and a space-less heading (`###[GSD.02] 05: ...`) is no longer
counted (CommonMark requires ≥1 space/tab after the hashes, which
tokenizeHeadings correctly enforces and the old raw regex did not). Both
G4 and G5 moved from round-1's wrong (inflated) values back to base's
original values as an incidental side effect of routing through
tokenizeHeadings — never a deliberate feature of this PR, and previously
undocumented. One clause added to the existing run-on paragraph; no other
wording in the changeset touched.

FIX 6 (Nit 1): tests/adr-612-bracket-heading-selection.test.cjs:76 —
`BRACKET_PHASE_TAIL_RE` has TWO consumers as of round-4's 65d257ce
(isBracketMilestoneBoundary's own use, plus bracketHeadingHasMatchingChild's
same-id-PHASE-child conjunct), not the "no other consumers" the comment
claimed. Same correction pattern round-4 already applied to this row's
BRACKET_HEADING_INTRO_RE neighbor (that sentence's own staleness was fixed
in 4d7184b8): note the true consumer count, confirm both stay nested inside
the same bracketBoundaryActive runtime gate (verified at
src/roadmap-parser.cts:178 and :250, both reached only through the
`if (bracketBoundaryActive)` block starting at :529), and record which
commit and which fix introduced the drift. Comment-only; no assertion
logic changed.

Line count: 2 files, 8 insertions / 2 deletions total — one added clause
in the changeset (1 line changed) and one comment block replacing the
single stale line in the test file (6 comment lines replacing 1).

Verified: targeted suite (adr-612-*, roadmap-parser, state, verify)
unchanged at 965/965 pass (comment/prose-only diffs, no test count change).
`node scripts/changeset/lint.cjs` and `npx eslint` on the touched files both
clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): restore the bracketId guard on the bracket-only /^0\b/ sibling rule (round-6 Blocker 1)

Round-5's Blocker 1 was `isSentinelPhaseId("undefined-00")` — the merge
that introduced the shared counter dropped the `bracketId &&` guard on the
sentinel check. This is the identical failure one line further down, in the
sibling rule this PR itself added: when the phase-heading grammar's LEGACY
alternative matches (`### Phase 0:` in a `phase_id_convention: "bracket"`
repo — the mid-migration shape this PR exists for), `bracketId` is
`undefined`, and the unguarded `/^0\b/` fires on the bare token anyway.
Neither the LEGACY branch of this same function nor
`getMilestonePhaseFilter` has a `/^0\b/` rule at all, so the filter counts
the phase and admits its completed directory while the counter refuses to
count its heading — a milestone with an unstarted phase 02 persists as a
confident 100%.

`/^0\b/` matches `0` and `0.5` (word boundary before the `.`) but not `00`
(no boundary between the two zeros), which is exactly why round-5's G3/G3d
fixtures (`### Phase 00:`) never tripped this one — same defect class,
different token spelling.

Fix: one word, mirroring the guard round 5 restored two lines above —
`if (/^0\b/.test(token)) continue;` -> `if (bracketId && /^0\b/.test(token)) continue;`.

Expected and intentional side effect: `roadmap analyze` and `state json`
now disagree again on this bracket-repo shape (analyze phase_count=2, json
total_phases=3) — exactly as they already do under the legacy convention
today (verified via /tmp/pr612rev/rv6c.cjs on both conventions). That is
the counter regaining agreement with `getMilestonePhaseFilter` (the tighter
constraint — it is what actually decides `completed_phases`), not a new
break; the counter/filter disagreement is what was wrong.

Out of scope, deliberately NOT fixed here (Minor 1, disclosed via a PIN
test only): the bracket-SPELLED `### [GSD.02] 0:` shape has the same
counter/filter disagreement, but reads 2/2/100 on base too — never closed
by any build in this arc, so it is a pre-existing gap rather than a
regression this commit could introduce.

Line count: src/state.cts is exactly 1 insertion / 1 deletion (one word,
`bracketId && ` prepended to the existing condition).

TDD: T0 (`Phase 0:`) and T05 (`Phase 0.5:`) verified RED at HEAD before this
commit (json 2/2/100, sync body 100%) via /tmp/pr612rev/rv6b.cjs, GREEN
after (3/2/67 on both derivations, matching TRUTH). Zero-drift verified by
diffing the FULL corpus (rv5-attack, rv5b, rv4-attack, rv-attack1,
rv-attack1b, rv-attack3c, rv-mech1, rv2-amend1, rv2-amend2, rv6-attack
H1-H19, rv6b) between a pre-fix and post-fix build: the only differing
lines in the entire diff are T0, T05, and H14 — the three target fixtures.

New tests (adr-612-bracket-phase-counting.test.cjs):
  - RED (T0) + PIN (T0L legacy control)
  - RED (T05) + PIN (T05L legacy control)
  - PIN (B0, bracket-spelled `0` — base-parity characterization, Minor 1,
    not fixed this round)
  Round-5's own G3 test (`### Phase 00:`) already serves as the T00 pin —
  `/^0\b/` never matched `00`, so it is unaffected and untouched.

Targeted suite (adr-612-*, roadmap-parser, state, verify): 965 -> 970 (+5),
0 fail. `lint-phase-id-drift.cjs` and `npx eslint` on touched files clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): changeset re-attributes the phase-count level cap + discloses the bare-0 carve-out; correct two stale test comments (round-6 Minor 1 + Nits)

FIX 2 (Minor 1 — disclosure only, NOT a code fix): the bracket-SPELLED
`### [GSD.02] 0:` / `0.5:` shape has the same counter/filter disagreement
round-6's Blocker fixed for the legacy spelling, but it reads 2/2/100 on
BASE too — never closed by any build in this arc, so it is a pre-existing
gap rather than a regression this round could introduce. Two changes:

  - Pinned as a base-parity characterization: new PIN test (B0) in
    04b5a95f's describe block asserting the exact unchanged value with a
    comment stating why it's deliberately not touched.
  - .changeset/2761-bracket-read-tolerance.md: one qualifying clause added
    to the "counted from ALL of the phases … not a subset" sentence — a
    bare `0`/`0.x` phase token (however spelled) keeps `roadmap analyze`'s
    own pre-existing sentinel reading under bracket too, so it stays
    excluded from these counts. Carried over, not newly introduced by this
    PR — `roadmap analyze` has always read it this way.

FIX 3(a) — same changeset paragraph misattributed the phase counter's
2-4 level cap to "the milestone-boundary machinery in this PR" (the
selector, `isMilestoneBounded`, the preamble scan) — that machinery caps
at `###` (level ≤3), not 2-4. The 2-4 cap belongs to
`getMilestonePhaseFilter`'s own phase scan. Re-pointed the attribution;
the paragraph's earlier, correct ≤3 claim (selector/isMilestoneBounded)
is untouched.

FIX 3(b) — tests/adr-612-bracket-heading-selection.test.cjs:76-82 (added by
1395bd89, round-5's own Nit-1 correction) claimed both
`BRACKET_PHASE_TAIL_RE` consumers are reached "only through the
`if (bracketBoundaryActive)` block starting at :529". Verified at HEAD:
`bracketHeadingHasMatchingChild` is (only caller :593, inside that block).
`isBracketMilestoneBoundary` is not — it has two callers, an inline
`bracketBoundaryActive &&` conjunct at `:473` (inside `computeSectionEnd`)
and the `:529` block at `:567` — the very fact this row's own earlier
"exactly two callers" paragraph already stated correctly. Corrected the
mechanism claim; the CONCLUSION (every consumer is still gated on the same
flag) is unchanged, exactly as round-5's own Nit-1 fix left round-4's
conclusion unchanged when it corrected the consumer count.

FIX 3(c) — tests/adr-612-bracket-phase-counting.test.cjs:2311,2340 still
said "four fence-blind sites" after round-5 (357ba671) added a fifth
(the retirement scan) in its own block below. Reworded both the section
comment and the `describe()` label to read as historical scoping of
round-4's own fix ("the four sites known at round 4 … a fifth was found at
round 5, see its own block below") rather than a live exhaustive claim.

Line count: 3 files, changeset 1/1, heading-selection test 17/8,
phase-counting test 6/2 (comment/prose-only; B0's own PIN test landed in
04b5a95f alongside T0/T05 since it was investigated as part of that same
Blocker's defect class, not in this commit — noted here for the record).

Verified: targeted suite (adr-612-*, roadmap-parser, state, verify)
unchanged at 970/970 (comment/prose-only diffs, no test count change).
`npx eslint` and `node scripts/changeset/lint.cjs` both clean.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): W021's bracket remediation hint stops pointing at a command that hard-errors (round-7 Minor 2)

`checkBracketCoherence`'s W021 (added by 94abf5df) attached the fix hint
`Run \`gsd-tools roadmap upgrade --convention bracket\` to migrate
(dry-run by default)` to every bracket-convention W021 — both sub-checks
(`missing-bracket` and `mismatch`) share the single `addIssue` call at
src/verify.cts:2255-2256. But `roadmap-command-router.cts:204` throws
unconditionally for any `--convention` value other than
`milestone-prefixed`:

  $ gsd-tools roadmap upgrade --convention bracket
  Error: Only --convention milestone-prefixed is supported

This contradicts the PR's own two disclosures: the changeset ("`bracket`
is a READ-path opt-in until the migrator and write path land") and
docs/CONFIGURATION.md:188 ("There is no bracket migrator and no bracket
emit yet"). Reachability is the exact mid-migration repo this PR targets —
any bracket project with one un-migrated heading gets an unfollowable
instruction on every `validate health`.

Fix: one string. Replaced the hint with what a user can actually do today —
manually align the heading's bracket milestone to its section — and named
the tracked future landing (#612 PR-3) instead of a command that errors.
The milestone-prefixed sibling hint at src/verify.cts:2240 (a different,
already-functional convention/command pair — verified against
roadmap-command-router.cts:65) is untouched.

Line count: src/verify.cts is exactly 1 insertion / 1 deletion (one string
literal).

No test in the suite previously asserted this string's content
(`grep -rn "upgrade --convention bracket" tests/` was empty), so the
unfollowable hint shipped unpinned — `lint-fix-has-regression-test.cjs`
would not have caught a string-only change without a new test. Added one:
asserts the fix string both (a) does not match `--convention bracket`
(the specific pinned-before-this-fix hazard) and (b) equals the new string
exactly, covering the invariant a future edit must not re-break: no
unsupported `--convention` value named in remediation text users are
expected to run verbatim.

Verified end-to-end (not just unit-level) via /tmp/pr612rev/rv7f.cjs: the
W021 issue's `fix` field now reads the new string; `gsd-tools roadmap
upgrade --convention bracket` (and its --dry-run variant) still correctly
hard-error — that command remains unsupported, only the hint text changed.

Targeted suite (adr-612-*, roadmap-parser, state, verify): 970 -> 971 (+1),
0 fail. `lint-phase-id-drift.cjs` clean; `npx eslint` on touched files:
0 errors (1 pre-existing unrelated no-elapsed-assertion warning, same file,
same line this arc's prior rounds already disclosed).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): correct the bare-0 changeset disclosure + disclose W021's second sub-check (round-7 Minor 1 + Nit 1)

FIX 1 (Minor 1) — round-6's bare-0 changeset clause (1395bd89) was wrong in
three falsifiable ways:

  (a) Its own illustration (`### Phase 0:`) is exactly the LEGACY spelling
      04b5a95f made COUNTED. The residual exclusion after that fix applies
      only to the BRACKET-spelled token (`### [GSD.02] 0:`) — the clause
      named the wrong shape as its example.
  (b) "excluded from these counts" over-scoped the carve-out. The phase-0
      directory is admitted into `completed_phases`/`total_plans` in BOTH
      spellings (measured: B0 at HEAD has `completed_phases=2`,
      `accepts {"GSD.02-0-bootstrap":true}`). The exclusion that survives
      lives in `total_phases`/`phase_count` (heading counting) only.
  (c) The pre-existing "so `roadmap analyze` and `state json` report the
      same number" sentence (present since before this arc's bracket work)
      is now false for the bare-0 LEGACY-spelled shape: 04b5a95f's own
      commit message discloses this exact re-divergence as expected —
      `roadmap analyze` phase_count=2 vs `state json` total_phases=3 on T0
      — matching the disagreement legacy already carries today. The
      changeset still asserted unconditional agreement.

Rewrote both sentences: dropped the `### Phase 0:` example, scoped the
carve-out to `total_phases`/`phase_count`, named the bracket-spelled token
as the one that keeps analyze's sentinel reading, stated plainly that the
legacy-spelled form in a bracket repo IS counted (the mid-migration guard),
and qualified the "report the same number" claim to the `999` token, with
the bare-0 legacy-spelled shape named as the one exception and why.

FIX 3 (Nit 1) — `checkBracketCoherence` has always had two sub-checks
(its own docstring: "Two sub-checks, both surfaced as W021") but both the
changeset and docs/CONFIGURATION.md:188 described only the `mismatch`
sub-check. The `missing-bracket` sub-check — which fires on every
legacy-spelled heading in a bracket repo, the noisier of the two on a
mid-migration project — was undisclosed in both places. One clause added
to each.

Line count: 2 files, 1 line changed each (both are single-paragraph/
single-row files; git diff --stat reports 1/1 per file though several
distinct clauses were edited within that one line each).

Verified: `node scripts/changeset/lint.cjs` clean. Targeted suite
(adr-612-*, roadmap-parser, state, verify) unchanged at 971/971
(prose-only diffs, no test count change, no code touched).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): resolvePhaseIdConvention's docstring no longer claims loadConfig drops the key

Upstream #2997 (aa7697fe, landed in `next` during this PR's final
verification) added `phase_id_convention: get('phase_id_convention') ?? null`
to `_baseConfig` in config-loader.cts — `loadConfig` now surfaces
`phase_id_convention` in its resolved config. This function's docstring
gave "loadConfig merges against CONFIG_DEFAULTS and drops keys it does not
know, and `phase_id_convention` is not among them" as the reason for
reading config.json directly instead of calling `loadConfig(cwd)`. That
rationale is now stale against live `next`.

Corrected the comment to state the two reasons that actually survive #2997:

  1. The workstream->root federation this function performs is a standalone
     resolution run against a GIVEN cwd, not necessarily the same base a
     `loadConfig(cwd)` call elsewhere in the codebase would federate from.
  2. Convention-ENUM validation is still #612 PR-4 work — this function
     returns the raw string unvalidated, exactly as the now-surfaced
     resolved key would.

Noted that #2997 surfacing the key makes consuming it from resolved config
(instead of re-reading config.json here) a natural PR-4 consolidation —
not this PR's scope. The "cycles were never the obstacle" close and every
other paragraph in the docstring (federation rationale, SCOPE note) are
untouched; they still hold.

Comment-only — no code behavior changed. This worktree's own history does
not contain aa7697fe (git merge-base --is-ancestor confirms neither branch
is an ancestor of the other; not rebasing per instruction), so this is a
textual correction against a documented external fact, not a functional
sync with upstream.

git diff --stat:
 src/planning-workspace.cts | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

Verified: `npm run build:lib` clean, `node scripts/lint-phase-id-drift.cjs`
clean, `npm run lint:ci` exit 0 (same 2 pre-existing unrelated eslint
warnings as every prior round this arc, 0 errors; lint-fix-has-regression-test
PASS). Full suite not re-run per instruction (comment-only diff).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2761): resolve phase_id_convention against the caller's workstream

`resolvePhaseIdConvention` took no workstream, so it resolved from
`planningDir(cwd)` — which falls back to `GSD_WORKSTREAM` only when its `ws`
argument is `undefined`. Every caller that passes a workstream by ARGUMENT
(they cannot set the env var per iteration) therefore read the convention from
the ROOT config while reading that workstream's ROADMAP.

Two reproduced consequences:

- A workstream that explicitly declares its own `phase_id_convention` had it
  ignored. Flipping ONLY the root config between bracket and milestone-prefixed
  changed which milestone that workstream extracted.
- `--workstream foo` and `GSD_WORKSTREAM=foo` disagreed on the same repo: the
  arg form fell through to the root config, the env form did not.

`resolvePhaseIdConvention(cwd, ws?)` now forwards `ws` to `planningDir`, and
both roadmap-parser call sites pass theirs — `extractCurrentMilestoneScoped`
(which already reads STATE from `planningDir(cwd, ws)`) and
`getMilestonePhaseFilter`'s lazy branch. `undefined` keeps the env fallback, so
convention-less call sites are byte-identical; `null` still means "explicitly no
workstream". The `undefined` vs `null` discriminator on `phaseIdConvention` is
untouched — only the base the `undefined` branch resolves FROM moves.

workstream-inventory's two sites (`countRoadmapPhases`, `inspectWorkstream`)
passed a literal `null` where they meant `undefined`, pinning every workstream
to the legacy grammar. On a bracket workstream whose milestone declares 3
phases that returned phaseCount 0 and fell back to the on-disk directory count;
it now returns 3. A non-bracket workstream is unchanged (legacy control pinned).

The workstream -> root federation is preserved: a workstream that declares no
convention still inherits the root, as config-loader does. That inheritance is
pinned so the fix cannot be over-applied into isolation.

* fix(#2761): classify missing phase details per occurrence, not per token

Under READING-B a phase's sentinel status lives in the BRACKET, so
`[GSD.999] 01` and `[GSD.02] 01` share a token and are not the same phase.
Both sides of the missing-detail check were keyed by the bare token anyway, and
both produced false negatives in `missing_phase_details`:

- The checklist scan built a token -> bracket-id Map, FIRST-WINS. Of two entries
  sharing a token, whichever the author wrote first classified both. With
  `- [ ] **[GSD.999] 01: Icebox**` above `- [ ] **[GSD.02] 01: ...**` the real
  phase inherited the icebox's sentinel verdict and vanished from the report;
  swapping the two bullets — same document, same phases — reported it. Pinned
  with a test asserting BOTH orders.

- The detail set was `new Set(phases.map(p => p.number))`, also token-keyed, so
  `[GSD.02] 01`'s heading marked token `01` present and satisfied
  `[GSD.03] 01`, which has no heading anywhere. Order-independent, same class.

Both sides now key on an occurrence key: the owner's `bracketQualifiedKey`
(fold- and padding-insensitive, so `[gsd.2] 01` and `[GSD.02] 01` are one
phase), falling back to a fold-normalized composite for the two shapes that
grammar refuses — a token carrying its own hyphen, which splices to an id whose
trailing segment the qualified-key grammar truncates (the hazard
`getMilestonePhaseFilter` guards with its own `!token.includes('-')`), and any
id it does not accept. With no bracket id the key IS the bare token, so the
legacy path keeps its exact keys and dedupe order.

The emitted value is unchanged — `missing_phase_details` stays an array of bare
tokens, matching `phases[].number`. Only the classification moved to the
qualified key, so two brackets' `01` both missing report `01` once instead of
one silently covering for the other.

* test(#2761): replace the two wall-clock ReDoS assertions with algorithmic bounds

Both guards asserted elapsed wall-clock time — `Date.now()` against a 20s
ceiling in the coherence suite, `process.hrtime.bigint()` against 1s in the
read-tolerance suite. Those measure the host machine rather than the SUT and
flake on a loaded CI runner (RULESET.TESTS.no-timing-assertion). Per
RULESET.TESTS.delete-bad-tests they are REPLACED, not skipped, and the
behavioral property each one guarded is preserved.

The property is "the widened bracket patterns do not backtrack
catastrophically", which is a claim about growth, so it is now stated by
scaling the input instead of by timing it:

- validate health runs the pathological unclosed bracket at 4,000 and 16,000
  characters and must return the same correct result (no W021) at both.
- The four reader entry points run five ReDoS shapes at 5,000 and 20,000 and
  must name exactly the phases each shape should name at each size, with the
  variant cardinality unchanged across the two.

Catastrophic backtracking is superlinear, so a regression cannot complete the
4x leg under any ceiling, while a bounded matcher is indifferent to the
scaling. The one attack that is well-formed-but-oversized now pins its reading
precisely (`['1'.repeat(n)]`) rather than being lumped in with the malformed
ones. A positive control asserts the readers still extract a well-formed
bracket heading, so "names no phase" cannot pass by the readers being inert.

`{ timeout }` is a hang backstop, not an assertion: it turns a runaway into a
deterministic failure instead of a suite that never returns.

* fix(#2761): give the bracket grammar one owner and teach the drift guard to see it

The bracket milestone-intro grammar was re-typed verbatim in three readers —
roadmap-parser's bracket-fallback selector, state's `isMilestoneBounded` and
verify's `checkBracketCoherence` — which is exactly what #2761's own gate
forbids ("no token literal outside src/phase-id.cts"). `check:phase-id-drift`
reported clean the whole time: its detector only ever knew the phase-NUMBER
token grammar, so the bracket class `[A-Z][A-Z0-9_]*` was invisible to it.

Ownership. `src/phase-id.cts` now exports the class as
`BRACKET_PROJECT_CODE_SRC` and the intro in the two shapes its readers need:
`bracketMilestoneIntroSrcFor(milestone)` (pinned to one milestone) and
`BRACKET_MILESTONE_INTRO_CAPTURING_SRC` (milestone captured). The pinned
builder owns the pad2 spelling rule too — "canonical spelling only, not `0*N`"
was previously restated in prose beside each copy, a convention two files had
to keep agreeing on by hand. `BRACKET_ID_SRC`, `BRACKET_ID_PREFIX_RE` and
`BRACKET_QUALIFIED_KEY_RE` now compose the class rather than re-spelling it.
All three call sites consume the owner; the regex sources are byte-identical to
what they spelled, asserted against hand transcriptions of the pre-fix lines.

Guard. `scripts/lint-phase-id-drift.cjs` gains a bracket rule
(`findBracketGrammarDrift`), wired into `scanRepo` and tagged `kind`. It
deliberately does NOT copy the token rule's `line.includes(CANON_REF)` escape:
that escape is line-level, and verify's copy referenced the owner for the
MILESTONE field on the same line as the re-typed PROJECT-CODE class — so a
bracket rule with that escape would have kept passing on the very site under
review. Partial ownership is the drift; only a dedicated `// phase-id-owner:`
comment suppresses it.

Proof, end to end: planting the shipped verify.cts literal back into src/ makes
`npm run check:phase-id-drift` exit 1 naming `[bracket] src/verify.cts:1475`;
restoring it returns the gate to ok.

Tests. phase-id-drift-guard carries all three shipped literals as negative
fixtures, the same-line-owner-reference case, the case-widened evasion variant,
the sanction rules, and a temp-tree scan proving the rule is wired into
scanRepo rather than merely exported. continuation-grammar-parity drives the
pinned and capturing shapes over a 12-entry corpus and requires the same
verdict from both plus the same captured milestone — widening either alone
fails there.

* test(#2761): drop the out-of-scope source-grep exemption from the selector pin

The baseline-selector pin in tests/adr-612-bracket-heading-selection.test.cjs
read `src/*.cts` with readFileSync and regex, claiming the no-source-grep
escape with a source-text-is-the-product reason. CONTEXT.md's documented scope
(RULESET.TESTS.no-source-grep.exemption) reserves that escape for tests whose
subject is a runtime CONTRACT FILE — STATE.md, config.toml, hooks.json, agent
.md — and `src/*.cts` is none of those.

It was also broader than it looked: eslint-rules/no-source-grep.cjs matches the
marker in ANY comment in the file, so one block's claim disarmed the rule for
the whole ~700-line suite.

The pin itself is worth keeping — the BASELINE ARGUMENT at each call site is a
fact no behavioural test can recover (flipping verify's milestone-complete site
from LABEL_ONLY to ANY_BRACKET grants a tolerance it has never had, and every
behavioural test still passes), so pinning it does require reading the authored
source. That reading moved to `scripts/lint-phase-id-drift.cjs` — the seam's
own guard, where source scanning is sanctioned (`warn` scope) and already
happens for the grammar rules — as `countSelectorBaselines` /
`scanSelectorBaselines`, which return a structured census. The test asserts on
the returned data and touches no file text.

CONTEXT.md is unchanged: the exemption scope was not widened to fit the test.
No marker remains in the suite, so the rule is live across all of it again, and
eslint passes with the escape removed rather than relocated. A floor assertion
pins that the census actually found the five consumers, so the "no other file
consumes the selector unpinned" check cannot pass on an empty scan.

* docs(#2761): rewrite the changeset as a lead + deltas instead of one paragraph

The fragment was a single ~6,400-character paragraph that opened on internal
mechanics, buried the user-visible change, and named an internal test path
(tests/adr-612-bracket-phase-counting.test.cjs) that means nothing to a reader
of the CHANGELOG.

It now leads with what a user sees — bracket-style phase IDs are recognized on
the read path across roadmap, validate, verify and state — followed by compact
bullets for the behavioral deltas, the opt-in caveat, and the upstream
consequences. Both merge-added disclosures are kept: the #3185 legacy-sentinel
Phase-0 delta with the reason the bracket counter keeps the narrower rule, and
the enumerator's convention-argument default flip with the four newly-scoped
read surfaces and the note that archival and milestone-completion paths are
unchanged. Two deltas from this review round are stated as their own bullets:
per-occurrence classification in `missing_phase_details`, and workstream-scoped
convention resolution including the workstream-rollup count change.

The internal test path is gone and the body is down to ~3,850 characters. The
bullets render as sub-bullets under the CHANGELOG entry and the `(#NNNN)`
suffix still lands on a trailing paragraph rather than mid-list.
`npm run lint:changeset` passes.

* test(#2761): use helpers.cleanup in the drift-guard temp-tree test

`local/no-raw-rmsync-in-tests` rejects a bare `fs.rmSync` in tests — the shared
helper carries the Windows-EBUSY retry budget. The temp-tree scan added with
M3's guard coverage test used the raw call.

* docs(#2761): correct the occurrenceKey comment on qualified-key normalization

The comment claimed `bracketQualifiedKey` is "fold- and padding-insensitive, so
`[gsd.2] 01` and `[GSD.02] 01` are one phase". The fold half is right; the
padding half is not. `BRACKET_MILESTONE_NUMERIC_SRC` is `(?:[1-9]\d{2,}|\d{2})`,
so `bracketQualifiedKey('GSD.2-01', 'bracket')` returns null and that input
takes the composite fallback instead.

No behavior change — the two key spaces use different separators and cannot
collide — but the claim was checkable and wrong. Restated: the owner case-folds,
and padding-tolerance is not a property it has or needs, because each accepted
milestone has exactly one canonical spelling and `[GSD.2]` is malformed rather
than an alternate spelling of `[GSD.02]`.

* ci(#2761): give the coverage-gate job the heap floor the shard jobs already have

The gate's report steps parse ~2.5GB of merged raw V8 dumps in one
process at the runner's implicit ~4GB ceiling, so pass/fail comes down
to GC timing (run 31338081337 OOM'd; next passes the same volume at
28s). Deterministic locally: crashes at --max-old-space-size=4096,
completes in 11s at 8192. PR shard data is within 0.15% of green next
runs — the load is pre-existing, only the ceiling was missing. #2952
set 6144 on the shard-collection step; the gate job was missed.

* Revert "ci(#2761): give the coverage-gate job the heap floor the shard jobs already have"

This reverts commit 03c74a97c911e9ddc53675aded9c9bbb89f14cd1.

* fix(#2761): thread the resolved convention into cmdStateValidate's phase-directory lookup

#3208 replaced cmdStateValidate's `startsWith` prefix test with the canonical
`phaseKeyFromDir(...) === selectedPhaseKey` comparison. That is the right
surface, and it is why the lookup now needs the resolved `phase_id_convention`,
which the rewrite does not pass.

`phaseKeyFromDir` deliberately refuses to read a bracket directory without an
explicit signal (ADR-2121: a bracket dir is string-indistinguishable from the
legacy letter-prefixed-decimal family), so un-threaded it returns the whole dir
name as the key — `GSD.02-05-real-work` -> `GSD.02-5-REAL-WORK` — while the
STATE side is the bare `05` that `parsePhaseFromProse` yields. Both sides of one
comparison derived under different conventions is #2562's defect class, and this
file's other three `phaseKeyFromDir` call sites already thread against it.

Observable: a bracket repo whose phase directory plainly exists reported
`valid: false` and "no phase directory matches phase 05", and the drift scan
(plan-count mismatch, verification status) never ran. The pre-#3208 `startsWith`
missed the same directory but skipped silently, so this is a visible-failure
regression on bracket repos, not a new miss.

Non-bracket conventions are byte-identical by construction: `extractPhaseToken`
branches only on `=== 'bracket'`, so null / 'milestone-prefixed' / unresolvable
compile the same path as the un-threaded call. The flat-legacy twin assertion
pins that.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#2761): note the cmdStateValidate convention threading in the changeset fragment

The fragment described the bracket read path as of the pre-merge branch. 504c64ff
added a shipped behaviour change — `state validate` now resolves bracket phase
directories — that the fragment did not mention, so the rendered changelog would
have under-described what ships.

Body text only; `type` and `pr` are untouched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): invert the inherited-wart characterization — #3225 fixed it upstream

Required by the merge of next @ 86101ee6; test-only, no src delta.

This branch disclosed rather than fixed a pre-existing upstream wart: on a
LEGACY repo, `### Phase 999:` warned from `validate consistency` while
`validate health` suppressed it — the two verbs contradicting each other.
The case was pinned as a characterization test ("INHERITED WART, unchanged")
precisely so it would INVERT if upstream ever closed it, rather than rot
silently.

ae7dc529 (#3225) closed it, by adding the `isSentinelPhaseId` guard to this
very loop. So the assertion inverted on the merge — as designed. Flipped to
assert the FIXED behaviour rather than deleted: it is the negative-space
proof that this branch's `sentinelPhases` guard never had to grow a legacy
reading of its own, and it reds if a future conflict resolution keeps our
guard while dropping upstream's.

Added a scope control alongside it (a legacy NON-sentinel `### Phase 09:`
with no directory still warns), so deleting the loop outright cannot pass.

Union proven load-bearing in BOTH directions against the merged tree —
neither guard subsumes the other:
  - drop `isSentinelPhaseId(p)` (ours only) -> 1 red, exactly this case.
    Note upstream's own #3225 tests stay GREEN there: they cover the
    disk-side loops (sentinel dir on disk) and the gap-numbering filter,
    not the ROADMAP-side loop. This case is that site's only coverage,
    which is the second reason to keep it rather than delete it.
  - drop `sentinelPhases.has(p)` (upstream only) -> 4 red bracket suites
    (icebox-not-missing, health/consistency agreement, occurrence-aware
    suppression, checklist-index suppression).

tests/adr-612-bracket-read-tolerance.test.cjs 79 -> 80, all green.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#2761): pin the three re-homed W006/W007 reads the merge left unfalsifiable

#3309/#3310 deleted the helpers this PR threaded (collectDiskPhases,
collectDiskPhaseEntries, collectArchivedPhaseDirNames,
forEachArchivedPhaseToken) and rebuilt their reads inside
src/planning-snapshot.cts + src/health-diagnostic-rules/*.cts. The convention
threading moved with them in the merge commit — but a mutation sweep over the
re-homed sites found three where reverting the convention argument changed real
CLI output and NOT ONE existing test went red. The pre-migration sites were
covered indirectly, through helpers that no longer exist, so the coverage did
not survive the relocation even though the behaviour did.

Each case is pinned at the CLI with its flat-legacy twin as the byte-identity
control, plus a non-vacuity control in the opposite direction:

  archivedPhaseTokens      revert -> "Phase 05 in ROADMAP.md but no directory on
  (planning-snapshot.cts)            disk" for a phase whose only directory is
                                     under .planning/milestones/v1.0-phases/
  roadmapPhaseCheckboxes   revert -> "Phase 09 in ROADMAP.md but no directory on
  (planning-snapshot.cts)            disk" for an unstarted `- [ ]` phase
  W007's extractPhaseToken revert -> "Phase GSD.02-77-orphan exists on disk"
  (roadmap-disk-consistency)         instead of "Phase 77 exists on disk"

Red/green: each single-line revert reds exactly its own case and nothing else;
every legacy control stays green in all three runs.

NOT pinned, and disclosed as droppable rather than given an unfalsifiable test:
buildValidPhaseSet's extractPhaseToken(dir, convention) in W002. That rule
unions disk tokens with roadmapDeclaredPhases and archivedPhaseTokens, and any
STATE.md reference a bracket disk token would rescue is already rescued by the
ROADMAP half — probed directly, the argument makes no observable difference. It
is threaded because it restores collectDiskPhases(planBase, convention)'s
derivation exactly, not because a test needs it.

Test-only; revertable independently of the merge commit.

* test(#2761): pin the two reads the #3165 extraction left unfalsifiable

DROPPABLE, offered as such. Test-only; the merge commit is correct without it.

#3428's extraction gave `collectAnalyzePhases` TWO call sites — the scoped
milestone window and the truncated-window recovery path. The merge threads
`convention` into both and swaps `detailKeys` with `phases` across the recovery.
Neither of those was falsifiable by the suite as it stood:

  - passing a NULL convention at the FALLBACK site, with the scoped site still
    threaded, is green across all 518 tests of the bracket, roadmap and
    milestone-window files. Every pre-existing bracket assertion reaches the
    enrichment through the scoped window, so none of them can observe the
    fallback's reading at all;
  - dropping `detailKeys = fallbackScan.detailKeys;` — the line this merge
    authored — is likewise green, because no fixture that reaches the recovery
    path carries a checklist bullet, so `missing_phase_details` is `null`
    either way.

That is the same hole class lap 3 closed in 9914359c: an argument whose revert
changes real CLI output with zero reds.

Pinned at the CLI on the shape that reaches the fallback on a bracket repo — a
MID-MIGRATION ROADMAP: bracketed ACTIVE milestone, its phase-detail sections
and checklist bullets sitting after an intervening CLOSED legacy milestone (so
the window closes over prose only), plus one legacy `### Phase N:` section of
its own. Six tests:

  - a NON-VACUITY control that removes the phase directories, so #3428's own
    precondition fails and the result is the empty one the recovery exists to
    replace — this is what proves the rest read the FALLBACK's output rather
    than the scoped scan's;
  - the directory assertion (`disk_status`/`plan_count`/`summary_count` for
    canonical `{CODE}.{MM}-{PP}-slug` dirs) + a flat-legacy twin asserting
    byte-equal shape, and that the twin is the right answer rather than a
    shared wrong one;
  - `missing_phase_details: null` for phases the recovery just found, and its
    companion direction — a bullet with no heading anywhere is STILL reported,
    so a fix that merely suppressed the report does not pass;
  - a non-bracket repo taking the same path unaffected.

Red/green, each mutation reverted afterwards:
  - fallback call site -> `null` convention: exactly 2 reds, both directory
    assertions in this block; 307 other tests green, including upstream's own
    #3428 tests in tests/milestone-window-single-owner.test.cjs.
  - `detailKeys` swap deleted: exactly 2 reds, both `missing_phase_details`
    assertions; 414 other tests green.
  - `matchPhaseDirs` 3rd argument dropped (the lap-2 site): 4 reds — the 2
    already on record plus this block's 2, which is the point: one seam, now
    reached by two paths.

DISCLOSED IN THE TEST BODY WITH MEASURED OUTPUT, not fixed: `hasPhaseEntries`
(src/roadmap-parser.cts) is convention-blind, so on a PURE-bracket ROADMAP the
window classifies COMPLETE and #3428's recovery is gated off entirely. That
document returns `{"scope":"complete","phase_count":0,"next_phase":null,
"phases":[]}` — the "genuinely empty milestone" answer, the indistinguishability
#3184 introduced `scope` to remove — where the flat-legacy twin returns
`{"scope":"truncated","phase_count":2,...}`. Widening it changes the value of an
upstream-owned output field on bracket repos, so it is a behaviour slice (the
PR-2.5/PR-4 convention-less-readers question), not a merge-round change. The
mid-migration shape pinned here is the reachable half.

* fix(#2761): mirror the bracket terminator in the milestone-scope write guard

parser's terminator vocabulary — "a level 1-3 heading that is not a Phase
heading and carries a milestone signal". On this branch that vocabulary is
convention-SELECTED: `computeBracketSectionEnd` adds `isBracketMilestoneBoundary`
as a terminator arm, and the ADR-canonical `## [GSD.09] Hidden` carries NO
vN.N token, NO ✅/📋/🚧/🔄 marker, and not the word "Milestone". Left
unmirrored, the guard accepted exactly the description it exists to reject.

NOT a defect on clean next — a bracket heading terminates nothing there. The
branch widens the terminator set, so the branch owns the mirror.

MEASURED at the CLI seam before the fix (bracket fixture, one milestone,
one phase):

  $ gsd-tools phase add $'Sneaky\n## [GSD.09] Hidden'   -> exit 0, written
  $ gsd-tools phase add 'Innocent follow up'            -> exit 0, written
  $ gsd-tools roadmap milestone-scope
    { "scope": "complete", "phases": ["01","1"], "phase_count": 2 }
  $ grep '^### Phase' .planning/ROADMAP.md
    ### Phase 1: Sneaky
    ### Phase 2: Innocent follow up      <- in the document, out of the window

After the fix the first add exits 1, ROADMAP.md is byte-unchanged and no
phase directory is created. The legacy twin (same text, no
`phase_id_convention`) still exits 0 — opt-in only, base behaviour preserved.

SHAPE
- `findMilestoneScopeHeadingLines(text, convention)` — REQUIRED, the same
  tripwire `scanMilestonePhaseIds` carries in the merge commit and for the
  sharper reason: a blind call here fails OPEN (the guard quietly ACCEPTS a
  window-narrowing description), so a future call site must fail to COMPILE.
  Census is one caller, which pays nothing for it. A non-bracket value takes
  the pre-existing path byte-identically. The bracket arm routes through
  `isBracketMilestoneBoundary`, the same single-owner phase-vs-milestone
  discriminator `computeBracketSectionEnd` consults; no second bracket-heading
  grammar is spelled here.
- `selectedBracketId` is deliberately `null`, so the same-milestone
  CONTINUATION exemption never fires and a value naming the ACTIVE milestone
  is flagged too. That is this predicate's third stated conservatism and
  rests on its own existing argument: which milestone is active is a property
  of the document at write time, not of the text being validated, and
  over-rejecting is one-directional.
- `assertDescriptionPreservesMilestoneScope` takes `cwd` and resolves through
  the branch's tolerant try/catch — this guard runs BEFORE `loadConfig` and
  before the ROADMAP existence check, so an unresolvable convention must
  degrade to the legacy vocabulary, never turn a rejection into a crash.
- The error's marker list gains the bracket form only when the project is on
  the bracket convention.

RED/GREEN
- Revert the bracket arm -> 2 reds (phase add; insert + add-batch), the
  non-bracket control and both no-false-positive cases stay green.
- Revert the probe threading in the merge commit -> 1 red (the probe case).
- 6 new cases in the #3262 file, each with a non-bracket or
  no-false-positive control: fenced bracket milestone heading and bracket
  PHASE heading are both non-violations.

Droppable: revert this commit and the merge stands on its own; the branch
then ships the gap as a disclosure instead of a fix.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(changeset): narrow the enumerator claim to the directory set — per-entry rendering in progress/stats/init-manager is display-slice scope

Round-7 review confirmed 3 of the 4 surfaces named by the closing claim
parse each directory or heading with legacy-only patterns that live in
files this PR does not touch (commands.cts:1766, commands.cts:2116,
init.cts:2241). The claim now states exactly what this slice delivers:
the scoped directory set. Their per-entry conversion is display work,
deferred to the epic's display PR with the statusline/progress-card
gates it belongs beside.

* fix(#2761): de-accident the unmatched-milestone bracket fixture, re-pin to #3480's withhold contract

tests/adr-612-bracket-phase-counting.test.cjs:515 ("a milestone that
does NOT match STATE is not scoped in") asserted total_phases === 0.
Since today's merge brought in 70b5c1a1 (#3354/#3480, already in
`next`), buildStateFrontmatter withholds total_phases (omits the key,
read back as null) for a milestone that is genuinely sectioned but
matches no ROADMAP heading, instead of substituting a computed number
— the fixture's `state json` read now returns null, failing the
strictEqual(0) assertion.

The original single-section fixture's 0 only ever survived by
accident: hasMilestoneSectioning requires >=2 milestone-vocabulary
headings to call a ROADMAP sectioned, and its isPhaseHeading helper
recognizes only the legacy `Phase N:` text form — so the bracket
phase heading `### [GSD.03] 09: Not this milestone` (title containing
the word "milestone") miscounted as a second milestone heading,
tipping hasMilestoneSectioning true and routing to the disk-count
branch. With that miscount removed, the same one-section fixture
reads 1 (the non-matching milestone's phase count leaking into v2.0's
total) — proving the pinned 0 was never validating the scoping this
test claims to exercise.

Replaced the fixture with two genuine milestone sections (GSD.03,
GSD.04), neither matching STATE's v2.0, with phase titles carrying no
incidental vocabulary — the real #3354 shape. Re-pinned the assertion
to null, matching upstream's own tested contract (tests/state-
document.test.cjs, "#3354 with nothing stored, the key is omitted
rather than written from the dir count").

Verified: file green 3/3 runs (104/104), full state-suite regression
771/771 green. The isPhaseHeading gap that made the old fixture
accidental is a real, pre-existing, upstream-owned limitation
(hasMilestoneSectioning only guards >=2-section conflation, not a
single non-matching section leaking through) — not introduced by

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2761): exempt two self-authored-fixture regexes from #3441's unbounded-quantifier rule

Both sites parse the STATE.md the test itself just wrote to its own
tmpdir — fixed-size fixture output, not adversarial or document-scale
input. Exempted with the justification-comment pattern the tree's own
tests use for this exact case (settings-integrations, copilot-install,
research-agent-profiles). The sites predate the rule; #3441 landed on
next this morning and this branch picked it up in the catch-up merge.

* fix(#2761): fix forward two next-movement test regressions from the round-11 rebase

origin/next's #3573 newly threads STATE's stored `milestone:` value into
`state json`'s buildStateFrontmatter call (previously always `undefined` on
that read surface). Two pre-existing PR-2 fixtures reach code paths that
call never exercised before that merge:

- RED (repro2 case C): a version-less, all-bracket-id ROADMAP now hits
  getMilestonePhaseFilter's pre-existing (unaffected by this branch) row-5
  `versionResolved && !headingFound => SCOPE.UNSCOPED` rule, which withholds
  `progress.percent` even though the scoped total_phases/completed_phases
  are still correct. That row-5 rule is load-bearing for six other
  version-less-document pins in this same file; narrowing it broke seven of
  them in testing, so production code is untouched here. Reassert the
  test's real claim (scoping, via total_phases/completed_phases) and
  disclose the now-withheld percent instead of silently dropping it.

- PIN (repro12 LEGACY control): a fenced-example-vs-real version heading
  fixture. #3573 routes this read through sliceMilestoneWindow (fence-aware)
  instead of the legacy anyMilestonePattern raw scan (fence-blind) this pin
  was disclosing as out of scope, so the fixture no longer exercises the
  blind path — total_phases moves from the whole-doc 4 to the correctly
  scoped 2. Re-pinned with an upstream-attributed comment, matching this
  file's existing house style for prior origin/next movements (see the
  sibling "PIN (G3 LEGACY control)" comment).

Both are test-only fix-forwards: no production code changed. The remaining
12 failures in this file at 27363e9d0 (dropped seam commits' VERIFICATION.md
naming + fixture updates) are pre-existing and deferred to the stacked
follow-up per the task's own scope.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): thread phaseIdConvention explicitly at the two write-adjacent enumerator call sites (round-11 BLOCKER)

listMilestonePhaseDirs' phaseIdConvention param lost its `= null` default
(phase-locator.cts), so an omitted convention now means "resolve from
config" instead of "explicitly not bracket" — a deliberate flip, but
milestone.cts and state.cts were not in the PR-2 diff and both call the
enumerator without threading it:

- milestone.cts cmdMilestoneComplete (the single #3597 shared derivation
  feeding the stats loop, --dry-run preview, and the real archive/rename
  pass) now resolves phase_id_convention once and threads it explicitly,
  so a bracket project's `milestone complete` archives its real
  bracket-declared phase directories instead of silently inheriting
  whatever the enumerator's lazy default resolves to.
- state.cts cmdStateUpdateProgress's own enumerator call threads the same
  resolved convention. Empirically this does not change the #3217 withhold
  gate (scope is assigned before headingConvention resolves in
  getMilestonePhaseFilter, so it's convention-independent either way) or
  the reported percent (already correctly threaded via
  computeUpdateProgressPreview -> buildStateFrontmatter); it closes a
  second, silently-resolved answer to the same question this file's own
  ONCE-and-THREAD rule (~:2300) already states as policy.
- state.cts's other listMilestonePhaseDirs call site (the state-sync
  scope-only read, ~:4791) is left unthreaded on purpose, with an inline
  note explaining why: only `.scope` is consumed, and `.scope` is set
  before convention resolution in getMilestonePhaseFilter, so it cannot
  disagree with a threaded convention.

Both enumerated sets are pinned by new tests (round-11 BLOCKER block in
tests/adr-612-bracket-phase-counting.test.cjs), including a mutation-style
regression check on the milestone.cts fix (forcing the un-threaded default
back on makes the pinned test fail, catching a regression to the
pass-all-degrade legacy reading).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): correct the changeset's false archival claim and amend ADR-612 for the round-11 M2(2) split scope

The changeset (.changeset/2761-bracket-read-tolerance.md) asserted "The
archival and milestone-completion paths are unchanged" — false: both
paths reach the widened enumerator, and this PR now threads their
convention explicitly (previous commit). Replaced the closing paragraph
with an accurate description of what changes for a bracket project at
those two call sites, and notes both enumerated sets are pinned by tests.

ADR-612 (docs/adr/612-bracket-phase-id-convention.md) amended per M2(2):
the 2026-08-03 PR-2/PR-4 boundary proposal is added in-body (PROPOSED,
not stamped — mechanics per docs/contributor-standards.md:143 reserve ADR
ratification to maintainers), rescoped to what actually ships in PR-2
(#2761) now that the round-11 M1 split moved the completion-seam
threading (isPhaseArtifact/scopeToPhase, phase-id.cts:964-1090) out into
a separate, stacked follow-up PR referenced generically via epic #612:

- state.cts read-tolerance (both total_phases derivations, the #1514
  retirement filter) moves into PR-2's row, alongside milestone.cts,
  reflecting the round-11 fix above.
- the write-observability point is restated in terms of what actually
  ships: explicit threading at two named call sites, pinned by tests,
  rather than silent inheritance.
- the completion-seam threading is named and explicitly excluded from
  PR-2's scope, with a new ratify item (5) and a Negative consequence
  bullet covering the sequencing cost.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): repair round-11 response gaps — disk-side sentinel bug, test-fixture bug, scanMilestonePhaseIds caller drift

Four independently-verified gaps in the round-11 repair response:

1. isSentinelPhaseId (src/phase-id.cts) treated a bare, untagged phase
   directory under phase_id_convention: "bracket" (`0-bootstrap`, no
   `{CODE}.{MM}-` prefix) as sentinel milestone 0 by falling through to the
   legacy leading-int rule when the bracket-tag match failed. This silently
   dropped a real, on-disk, milestone-declared phase directory from
   `listMilestonePhaseDirs` (phase-locator.cts:424, the only unguarded call
   site) and undercounted completed_phases/percent. Mirrors the carve-out
   already present on both heading-side counters (state.cts's
   countRoadmapPhaseHeadings guards its bare-0 exclusion with `bracketId &&`;
   roadmap-parser.cts's scanMilestonePhaseIds composes the bare-token rule as
   999-only) — under bracket convention, milestone 0 is expressed only via an
   explicit bracket tag, so an untagged leading 0 is a real phase token.

2. tests/adr-612-bracket-phase-counting.test.cjs's writeProject fixture
   hardcoded `01-VERIFICATION.md` for every "complete" phase dir regardless
   of the dir's real phase token. Under legacy convention this file already
   correctly failed #3511's strict isPhaseArtifact match for any dir other
   than phase 01 (the fixture never modeled what it claimed to); under
   bracket convention the pre-existing ambiguity fail-safe admitted it
   regardless. The two readings' disagreement was mistaken for a missing
   completion-seam threading (isPhaseArtifact/scopeToPhase convention
   awareness, correctly split out to the stacked #3644 per round-11's M1).
   Replaced the hardcoded name with verificationNameFor(dir), deriving the
   real per-phase filename from the production normalizePhaseName the same
   way cmdScaffold does — the 7 failing "flat-legacy-twin" / CHARACTERIZATION
   assertions pass on #2867's own code with no seam threading required, and
   the genuine seam-dependent cross-phase-stray-exclusion test the fixture
   fix would otherwise have hidden lives on the stacked branch instead.

3. tests/roadmap-parser.test.cjs's two #3577 tests still called
   scanMilestonePhaseIds with the old single-Set return shape; this PR
   changed it to `{ ids, qualifiedIds }` for every other caller but missed
   these two, which don't touch #2761/bracket code at all. TypeErrors at
   runtime, not silently-wrong assertions. Updated both call sites.

4. .changeset/2761-bracket-read-tolerance.md gains a paragraph disclosing
   fix 1 above, so the changeset stays accurate to what actually ships (the
   round-11 BLOCKER was exactly this changeset going stale once).

Verified: tests/adr-612-bracket-phase-counting.test.cjs +
tests/continuation-grammar-parity.test.cjs + tests/roadmap-parser.test.cjs =
354/354. adr-612-{coherence,grammar,heading-selection,read-tolerance,
selection.property}.test.cjs + collision-characterization = 287/287
(CONFIRMED-CLEAN set, unaffected). Full unfiltered suite run separately.

PR #3643 (round-11's M1 split, opened draft per that round's explicit
requirement) was auto-closed by this repo's own draft-PR policy 11 seconds
after opening — draft PRs are unconditionally closed here. Reopened as
non-draft #3644 (same branch, same commits, DO NOT MERGE / stacked-on-#2867
marker in the body, enhancement template) since the repo's own bot confirms
non-draft contributor PRs are tolerated even off-template.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(#2761): narrow the state-update-progress pin claim to what mutation testing actually proved, add the test that covers the rest

Round-11 BLOCKER response gap (verified, not a guess): the changeset and
ADR-612 amendment point 2 both claimed the round-11 tests pin
`cmdStateUpdateProgress` so "a future change to the enumerator's default
cannot silently move ... what state update-progress reports without failing
a test." Mutation testing disproves this. Reverting BOTH the state.cts
explicit `phaseIdConvention` thread AND simulating the phase-locator.cts
pre-#612 hardcoded-null default (`phaseIdConvention: null` at that one call
site) leaves the existing PIN test ("writes a real percent for a
bracket-scoped milestone") green, because that percent comes from
`computeUpdateProgressPreview` -> `buildStateFrontmatter`, a separately and
already-correctly-threaded derivation the state.cts inline comment at ~:965
already candidly documents.

What the reverted thread DOES change, empirically, is `phaseDirs`/`totalPlans`
— the enumerated `.value` this call site feeds into the #3233 zero-plans
no-op gate a few lines below. That is the one place a regression at this call
site is observable in the command's output. Added a test that pins exactly
that: a bracket milestone whose declared phases carry no plans on disk,
alongside a decoy directory that plainly does not belong to the milestone
(no bracket tag, no phase token) but does have a plan. Correctly scoped, the
decoy is excluded and the #3233 no-op fires (`updated: false`). Degraded to
the pass-all legacy reading, the decoy is swept in, `totalPlans` flips
nonzero, and the no-op never fires (`updated: true`).

Mutation-tested against both scenarios:
- Reverting ONLY the state.cts explicit thread (falls back to `undefined`,
  which `getMilestonePhaseFilter` resolves via the identical
  `resolvePhaseIdConvention(cwd, undefined)` call the explicit thread also
  makes): new test stays green — confirms the single-hunk thread really is
  pure single-derivation hygiene, exactly as the existing inline comment
  claims, for this test too.
- Forcing `phaseIdConvention: null` at that call site (the combined-revert
  scenario the round-11 mutation testing actually exercised): new test FAILS
  (`updated: true, percent: 0` instead of the expected `updated: false`).
  Restoring the real code makes it pass again.

Narrowed the changeset and ADR-612 point 2 prose to match: `cmdMilestoneComplete`'s
enumerated set is pinned against a pass-all-degrade regression (genuine,
already verified in round 11); `cmdStateUpdateProgress`'s own call site is now
pinned against the #3233 zero-plans no-op specifically, not against the
reported percent, which the prose no longer claims. Added a one-line pointer
to the new test in the state.cts inline comment. No production behavior
changes — test and documentation only.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(#2761): reconcile ADR PR-2 module map

* fix(#2761): restore #3639's dir-aware W007 sentinel exclusion lost in the rebase replay

The rebase replayed this file's pre-#3639 patch over next, reverting the
isSentinelPhaseId(token) -> isSentinelPhaseDir(dirName) fix: the extracted
token is milestone-stripped, so a bracket sentinel (GSD.999-07-icebox,
GSD.00-01-backlog) was invisible to the id predicate and false-fired W007.
Restores upstream's call and comment verbatim; the branch's convention-aware
token remains for the diagnostic message only.

Caught by next's own #3639 regression tests (CI shard 2). Local: the file's
18/18, health-diagnostic-rules 165/165, full npm test exit 0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MeAsZNfhiUQioFPA4ygEGS

* docs(#2761): ratify scope and correct surface claims

* test(#2761): strengthen legacy selection and drift claims

* docs(#2761): correct the enumerator claim, scope list, and ratification receipt

Three documentation corrections, none touching production code.

The changeset claimed the shared phase-directory enumerator "now defaults its
convention argument to 'not yet resolved' rather than 'resolved, and not
bracket'". That is false: `phase-locator.cts:375` still destructures
`phaseIdConvention = null`, and the lazy resolve-from-config fires only on
`undefined` (`roadmap-parser.cts:941`, `:1928` — whose own comment records that
"explicit null still means 'resolved and non-bracket'"). Measured: only 4 of 17
`listMilestonePhaseDirs` call sites thread a resolved convention (`milestone
complete` and `state`'s three). The changeset went on to name `progress`,
`stats`, `phase list` and the init manager view as now receiving a correctly
scoped set — those are precisely callers that omit it. Replaced with what the
code does, and the deferral stated plainly.

The ADR's PR-2 row omitted `scripts/lint-phase-id-drift.cjs` (+141/-14) and
`scripts/lint-phase-enumeration-drift.cjs`, both changed by this PR. An
under-claim rather than an over-claim, but the row is the epic's
scope-of-record.

Ratify item 5 asserted maintainer ratification while citing only the review that
raised the question. It now cites the review that granted it (#2867 review
`5012940978`, 2026-08-24) and quotes its terms, so the claim carries its receipt.

Found by an adversarial review pass over the round-12 diff. (#2761)

* fix(#2761): drop the no-op --json that strict argv now rejects

Surfaced by the rebase onto next, not by a change in this PR's subject.

#3884 ("failure is a value — strict argv", e20744eac) made an unrecognized
flag a hard error: `state validate --json` now exits 1 with
`unknown flag "--json"; accepted: --strict` on stderr and EMPTY stdout,
where the token was previously accepted and ignored. `state validate` never
had a `--json` flag — JSON is its only output shape — so the argument was a
silent no-op from the start.

The helper parsed that empty stdout, so all five subtests in the
"state validate resolves bracket phase DIRECTORIES" suite failed identically
with `SyntaxError: Unexpected end of JSON input` at the JSON.parse, masking
what they actually assert.

Dropping the token restores the same envelope the helper already parsed. No
assertion changes. Verified against the fixture the suite builds: exit 0, and
the output carries the S005 plan-count warning the drift assertions require
with no S004 phase-directory warning — i.e. the bracket directory resolves,
which is the behaviour these tests exist to pin. 94/94 in the file.

* fix(#2761): exempt the phase-counting suite from the docs-guard lane

Surfaced by the rebase onto next. #3753 (107eb8c1d) added
lint-docs-guard-registration, which requires every test file that reads a
docs/ path to be either registered in the docs-guard lane or carry an
explicit marker. It flags adr-612-bracket-phase-counting.test.cjs, which
reads no docs/ path at all.

The file's only docs/ occurrence is the ADR-612 Decision 1 citation in a line
comment; every read call it makes targets a tmpdir .planning fixture. It trips
Detector 3, whose DOCS_TEMPLATE_LITERAL_RE sees an odd prose backtick in the
comment block above that citation as opening a template literal and reads the
span between them — citation included — as a docs/ path expression. That
detector documents this trade in its own header: it favours recall, and says a
false positive costs one docs-guard-exempt marker with a reason. The baseline
records the same class ("comment-only mentions") for 46 of its entries.

Registration was the wrong side of the trade here: it would run this suite in
the docs-guard lane on docs/ changes whose content it never reads.

Three pieces, matching what the gate requires and what its 54 existing entries
already do:
  - the marker in the file's header window, written without backticks so it
    cannot itself disturb the parity tracking findExemption does;
  - the basename in DOCS_GUARD_EXEMPT_BASELINE, since the ratchet fails a new
    marker until the baseline is deliberately updated — the reviewable diff is
    the point;
  - the FIX 3 per-file fingerprint, derived with the lint's own
    extractDocsPathReferences rather than retyped, so the exemption fails loudly
    if the set of docs/ paths this file mentions ever changes.

Gates: lint-docs-guard-registration 0 violations, ci-docs-guard-registry 51/51.

* docs(#2761): correct the bare-0 comment and state what opting into bracket costs

Round-13 review items Minor 2 and Minor 3, both still live on the previous head.

Minor 2 — src/phase-id.cts. The comment block claimed "Bare `0` is admitted
alongside it because a 0.x sentinel is a legitimate identity that predates
padding", which contradicted both the shipped constant and its own next
paragraph. BRACKET_CANONICAL_NUMERIC_SOURCE is `(?:[1-9]\d{2,}|\d{2})`;
measured against it, `0` is rejected while `00`, `05`, `99`, `100` and `999`
are admitted. The paragraph four lines below already recorded the removal
("the earlier `(?:\d{2,}|0)` ... admitted ... a bare `0` that pad2 never
produces"), so the block asserted and denied the same fact. The stale sentence
is replaced with what ships: `00` is the backlog sentinel's canonical padded
identity, `\d{2}` already covers it, and nothing needs the unpadded spelling.
No behaviour change — the constant is untouched.

Minor 3 — docs/CONFIGURATION.md. The phase_id_convention row described the
read-path widening but never said what a repo GIVES UP by opting in. Added:
on a bracket repo a heading whose bracket is followed directly by a digit is
read as a phase heading, so `### [RFC.2119] 5:`, `### [v1.0] 2024:` and
`### [ADR.612] 3:` — legal prose headings under any other convention — are
claimed as phases and move phase_count, total_phases and W006. Those three
shapes are the ones phase-id.cts's own selector comment names as the reason
the widened read is selected at construction time from this value rather than
applied everywhere; the row now carries that trade instead of only its
upside.

Gates: tsc --noEmit exit 0, npm run lint:ci exit 0, npm run test:unit
33890/33891 with the single failure being emitted-attribution's base drift
against a next that moved after the rebase (133/133 against the rebase base;
this push re-bases onto the current tip, which resolves it).

* chore(#2761): give this slice its own changeset and document the membership scoping

PR-2 (#2867) merged separately, so the completion-seam entry no longer
belongs appended to its fragment. Restore .changeset/2761-bracket-read-tolerance.md
to the merged version and carry this slice's entry in its own fragment
with the correct pr: field, clearing changeset-lint's fail_pr_field_drift.

Document the membership scoping in docs/CONFIGURATION.md, which the new
Added fragment requires under lint:docs.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* docs(#4142): cite #4142 in the completion-seam changeset backlink

The fragment's trailing backlink named #2761 — the delivered PR-2 sibling
whose ratified scope excluded this completion seam — rather than #4142,
the issue this PR actually closes. The PR body already carries the correct
`Closes #4142` with `Refs #2761` for lineage; only the changeset disagreed.

Backlinks are a convention rather than a machine-checked field, so
changeset-lint passed on the wrong citation.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BAWrF68cHxW3Ek5CsGUeqJ

* docs(#4142): name phase complete and workstream-inventory in the unthreaded-caller disclosure

Round-4 review Major. The changeset's "still unthreaded" list named only the
aggregate scans (uat, audit, init projections, gap-checker, phase-locator) and
omitted two call sites that also stay on the include-everything fail-safe for
bracket directories after this PR:

- cmdPhaseComplete (src/phase.cts:3394,3405) — `phase complete`'s advisory
  UAT and VERIFICATION warning pre-scan calls scopeToPhase two-arg, so a
  bracket phase can still be warned about a cross-phase stray it does not own.
- src/workstream-inventory.cts:663 — calls isPhaseComplete, which this PR
  made convention-aware, without resolving a convention to pass it.

Because roadmap.cts's write path WAS threaded here on ADR-3180 section 7.4
read/write symmetry, leaving `phase complete` off both the code and the
disclosure was the omission most likely to be read as covered by "the same
protection #3511 already gives legacy directories". That claim is now scoped
to the call sites this PR threads, in both the changeset and the shipped
docs/CONFIGURATION.md cell, which carried the identical omission.

Disclosure only — no production code changed. Threading these two remains
follow-up-slice work alongside the epic's other convention-less readers.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P959Zm5r2KhsMF83UzXDFJ

* fix(#4142): scope phase completion verification by convention

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#4142): refresh macOS conformance tier

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-12 20:39:16 -04:00
sim
bbc3f131be refactor(#4653): make containment ONE decision, resolved two ways
Satisfies #4653 DW1 and DW9, which were the phase's outstanding acceptance
criteria: every other implementation must be deleted or route its containment
DECISION through the canonical predicate, and no surviving wrapper may decide
WHETHER a path is contained.

Three implementations were being retained with their own comparisons, on the
argument that each needs LEXICAL resolution — a realpath-based predicate is the
wrong tool wherever a symlink must be preserved rather than resolved. That
argument is correct about RESOLUTION and was being used to justify owning the
DECISION too. Those are separable, and separating them is what closes the
criteria honestly rather than by reinterpretation.

  isContainedIn(resolvedTarget, resolvedRoot, pathImpl?)   module-internal

is now the single place this repo decides containment. It is separator-aware, so
a sibling merely sharing a prefix (`<root>-evil` against `<root>`) is still
rejected. Two exported families sit on it and differ ONLY in how a candidate is
resolved before the decision:

  assertWithinRoot / tryWithinRoot                realpath-resolving
  assertWithinRootLexical / tryWithinRootLexical  path.resolve only, no I/O

The lexical pair carries `opts.pathImpl`, so win32 separator semantics stay
testable off Windows — that seam already existed in isPathConfined and would
have been lost by a naive collapse.

The three call sites now take their decision from the predicate and keep only
what is genuinely theirs:

  external-descriptor-trust isPathConfined   delegates outright; pathImpl forwarded
  installer-migrations ensureInsideConfig    delegates; keeps its own message and
                                             its LEXICAL fullPath, which callers
                                             consume for existsSync and journal rows
  gsd-tools.cjs isInsideDir                  delegates; keeps its own `target !==
                                             root` condition, and the separate
                                             symlink refusal above it stands

DW5 is not weakened by this. That criterion binds the symlink oracle and the
ancestor canonicalization; both are untouched. The only change inside
validatePath is three comparison lines becoming one call, and the rejection
string `Path escapes allowed directory: <resolved> is outside <base>` stays
byte-identical because it is an observable CLI contract.

What this does NOT do, stated plainly: the lexical family still cannot see a
symlink. That is a property of lexical resolution, not a gap in the seam, and
the three callers that need it are the three that must pair it with their own
symlink refusal — which is exactly what the fix earlier in this phase added at
the install sites. The doc comment says so at the definition, and CONTEXT.md and
docs/explanation/security-model.md are corrected: they previously described
these three as deliberately NOT routed through the predicate, which is no longer
true.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 18:33:01 -04:00
sim
6f0e5ccf85 fix(#4636,#4653): close the symlink hole, revert a wrong collapse, fix six review findings
The RED checkpoint and two orthogonal reviews found eight defects. All fixed here.

THE COLLAPSE THAT WAS WRONG — installer-migrations. Routing ensureInsideConfig's
containment decision through the realpath-based canonical predicate broke four
tests, and the failure message says it plainly: "migration path escapes
configDir: extensions/gsd.cjs". That module's entire contract is that a
symlinked managed path is snapshotted, restored and backed up AS A LINK and
never dereferenced. The canonical predicate dereferences, then rejects the
result for escaping configDir — so it destroys exactly the thing the module
exists to preserve. Reverted to lexical, with the ruling recorded above the
function so it is not collapsed a third time. normalizeRelPath is the real
pre-gate there; it throws on absolute paths and '..' before this check runs.

That makes THREE deliberately-retained implementations, not two, and they share
one shape worth naming: a realpath-based predicate is the wrong tool wherever a
symlink must be PRESERVED rather than resolved. CONTEXT.md and
docs/explanation/security-model.md are corrected — both previously described
ensureInsideConfig as collapsed.

THE MISSED CONSUMER. tests/security-prompt-injection.security.test.cjs
destructures validatePath from the compiled lib; un-exporting it turned five
tests into TypeError. It appeared in my own earlier search output and I did not
follow it up. Translated under the same rule as the rest: assertions on the
rejection REASON go through assertWithinRoot, boolean-only through
tryWithinRoot.

VALIDATE-ONE-PATH-USE-ANOTHER, FOUND TWICE MORE. This is the fourth and fifth
occurrence in this epic of the exact defect it exists to prevent.
  - scripts/check-glossary-refs.cjs decided containment on `token` and then
    stat'd a separately re-joined path.join(ROOT, token). The ContainedPath is
    now carried through to the probe, so the validated value is the probed one.
  - src/init.cts computed skillPathContained and DISCARDED it, re-joining from
    the raw input for the existsSync and read. The branded type exists to make
    that a type error and here it was inert.

AND THE OVER-CORRECTION OF THAT FIX, caught before it shipped. The first attempt
also substituted the validated value into the EMITTED `ref` for a global skill.
That value is a display token, not a path anything reads through — the only fs
access in that branch runs on the lexical path beforehand — so substituting it
changed emitted output two ways: it is realpath-resolved, so a symlinked global
skills directory would have emitted its resolved target instead of the user's
own path, and it came from path.join, so Windows would have emitted a backslash
where the template has a literal '/'. Restored, with the distinction recorded:
the containment check there is a GATE, not a path producer.

A TEST THAT COULD NOT FAIL. The first symlink regression planted its symlink
from inside a hooked fs.readdirSync and never asserted the planting happened —
if the hook did not fire, the "nothing was written outside" assertion passed
trivially, green against vulnerable code. It now asserts the plant, matching its
sibling. The other two were re-checked: one already asserted its equivalent, the
other plants synchronously and cannot silently no-op.

THE SYMLINK FIX ITSELF, now that the tests are proven red on the matrix.
isPathConfined is lexical by design and structurally cannot see a symlink; three
callers relied on it with no defense of their own. install-engine.cts:1608 and
install-profiles.cts:880 refuse to mkdir/write through a link — mkdirSync with
recursive:true does NOT throw on an existing symlink-to-directory, so a planted
link redirected the SKILL.md write outside the install root.
install-profiles.cts:755 refuses to read through one — statSync FOLLOWS links,
so an outside file's contents were returned and installed as a skill body. Each
mirrors the guard retired-artifact-cleanup.cts:77 already uses.

Severity stated accurately rather than dramatically: only the read at :755 needs
no race. _removeGsdEntries sweeps a pre-planted link at :1608 before the write
loop, and :880's stageDir is a fresh mkdtemp, so both of those require winning a
window. They are fixed as defense-in-depth, not as live exploits.

ALSO: the Changed changeset claimed "every command's observable behavior [is]
unchanged". Three rejection messages are reworded. It now says so, and says that
none of them reveals a host path it previously hid. A stale comment in
verify.cts still named validatePath; an init.cts warning hardcoded "resolves
outside the project directory" for a check that also rejects absolute paths, NUL
bytes and empty strings; and the rationale deleted with check-glossary-refs'
retired helper is restored, noting honestly that a rejected token is now
realpath-resolved before rejection rather than rejected by string comparison.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 13:59:52 -04:00
sim
9953d02184 docs(#4653): describe the consolidated path-containment seam in the security model
The security model's input-validation section still described path traversal as
a per-call check with a macOS symlink footnote. It now describes what actually
exists: one predicate, a module-internal engine, three exported shapes none of
which can hand back a usable path when the answer is unsafe, the branded return
type, and the named acceptance policy — including the point the old wording
invited a reader to get wrong, that allowing an absolute candidate does not
relax containment.

Also records the two checks deliberately NOT routed through the predicate and
why each is narrower or stricter rather than a second opinion, so a later
cleanup pass does not read them as stragglers.

Required by the Changed changeset: scripts/lint-docs-required.cjs makes
Added/Changed/Deprecated/Removed fragments demand a file under docs/, and
CONTEXT.md is at the repo root, so the glossary entry alone would not have
satisfied it. The lint currently reports invalid_pr against the mandated pr:0
placeholder and becomes meaningful after backfill.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 13:41:40 -04:00
Tom Boucher
a0270a7945 Merge pull request #4666 from open-gsd/fix/4652-containment-at-boundaries 2026-09-12 11:44:24 -04:00
Rezolv
7bcfbe4542 docs(#4629): add ADR-4629 — STATE.md write intent beyond frontmatter (#4645) 2026-09-12 11:43:16 -04:00
sim
c7956c162b fix(#4652): a todo name must be a basename — containment alone cannot say that
The verification checkpoint caught a real design gap, not a flaky test.

Confining sourcePath/targetPath within todosRoot correctly rejects
`../../escaped`, which leaves the root. It does NOT reject these, because they
all land inside it:

  ../sibling.md   -> <todosRoot>/sibling.md     escapes pending/, not the root
  a/../../b.md    -> <todosRoot>/b.md           same
  sub/name.md     -> <pendingDir>/sub/name.md   inside pending/, but nested

Three committed tests asserted these must be rejected and were right: the
design says "a todo name is a basename, not a path", and #4327 requires the
resolved path stay inside "the todos root (pending and completed subdirs)".
Containment against a root is structurally incapable of expressing "basename" —
it answers "is this inside?", and all three are. The wrong tool was reaching
for the wrong question.

A basename guard now runs BEFORE any path is joined: reject on a `/` or `\`
separator, on a path.basename / path.win32.basename mismatch, on `.` / `..`,
and on a NUL byte. Both separators are checked explicitly because on POSIX a
literal backslash is an ordinary filename character to path.basename but not to
path.win32.basename or to the user's intent — this repo has a documented bug
class for exactly that asymmetry. Same predicate shape as findPhaseArtifact in
check-command-router.cts, so the two agree.

Containment is kept as defense-in-depth rather than replaced. The basename
guard is the specific rule; containment is the backstop.

Message wording matters here and is deliberate: `sub/name.md` does NOT escape
its allowed directory, so reusing the escape message would have stated
something false. It now says the name must be a plain filename, not a path.

docs/CLI-TOOLS.md corrected again, in the opposite direction from last time.
The previous revision said an absolute filename is "folded under the root" and
404s — true then, false now: the basename guard rejects it before any join
happens. Two corrections to one paragraph in one phase is the cost of
documenting behavior while it is still moving; the paragraph now matches the
shipped code.

Verified through the real CLI, not by calling the built function directly:
all eight rejection cases produce the new USAGE message; `ok.md` still
completes and moves to completed/; `missing.md` still gives "Todo not found".

Also corrected the now-stale comment above the isFile() check — it described
`.`/`..` reaching that line, which the basename guard now prevents. The check
itself stays: a bare basename can still name a directory, FIFO or socket in
pending/.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 10:07:40 -04:00
sim
9c20b7b40a fix(#4652): use the validated path, collapse the duplication, correct two false claims
Seven findings from the two-axis review, all fixed in place.

THE ONE THAT MATTERS: cmdTodoComplete validated sourcePath and targetPath and
then ran every fs call against the RAW strings — existsSync, statSync,
readFileSync, platformWriteSync, unlinkSync, and the dry-run path payload —
never sourceCheck.resolved / targetCheck.resolved. That is the exact
"validate one path, use another" shape ADR-4650 names as the defect this epic
exists to prevent, and it is the same bug this phase had just fixed in
check-command-router. Committed inside the fix for it. All I/O now uses the
resolved paths; user-facing messages still echo the raw filename, never a
resolved absolute path.

A VACUOUS TEST, and the false doc claim it was propping up. The test
"[RED #4327] an absolute path outside the project is rejected" would have
passed with ZERO containment logic: path.join(pendingDir, '/abs/outside/x')
yields <pendingDir>/abs/outside/x — Node does not let a later absolute segment
escape — so the name is FOLDED under the root, passes containment, and simply
404s. The test only ever observed "Todo not found". It now asserts what is
actually true and actually valuable: an absolute name is neutralized, and the
real outside file is not read, not moved, and still present afterward.
docs/CLI-TOOLS.md claimed such a path "is rejected as a usage error", which
was false; it now describes the fold-under-root behavior. Traversal and
embedded separators ARE rejected, and those claims stand.

DUPLICATION THIS EPIC EXISTS TO REMOVE. resolvePath already did
isAbsolute-or-join + validatePath + reject; cmdGapAnalysisPlanPost and
cmdCheckPredicate each re-inlined the identical triplet in the same file. Both
now call resolvePath. Cost, stated rather than hidden: its generic message
replaces the two sites' distinct "phase-dir escapes…" wording. The message
still names the offending input, and one predicate with one message is the
point.

SYMLINK COVERAGE was required by #4652's "Done when" and was missing. Added
for both the todos root and --phase-dir, skipping cleanly on EPERM so the
Windows lanes do not fail where unprivileged symlink creation is disallowed.

Both fast-check properties were UNSEEDED. Seeded now.

The changeset named "check decision-coverage-plan" as a boundary; that is a
caller of the shared resolvePath, which the body never mentioned. Corrected.

DISCLOSED, not hidden: ctx.phaseDir is now always the resolved ABSOLUTE path,
so ${PHASE_DIR} interpolation and the "not found in <targetDir>" message show
an absolute value where a relative --phase-dir previously produced a relative
one. That is an observable output change. A test pins it and
docs/reference/gate-predicates.md states it.

Also regenerated scripts/lib/platform-conformance-tier.generated.cjs and its
macos twin — the new tests changed check-predicate.test.cjs's tier
classification. Caught by npm run lint:ci locally rather than by a bench run.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 09:43:50 -04:00
sim
374300da17 fix(#4652): confine every boundary that joins argv to a managed root
Phase 2 of epic #4636, absorbing #4327 and #4354. Implements ADR-4650
decision 3: containment is a boundary concern — the predicate runs where
external input enters, not at whichever interior call site remembered.

Four boundaries now validate against their managed root and reject with a
USAGE-shaped error before touching the filesystem:

  todo complete <name>                 -> todosDir(cwd)
  check predicate --phase-dir <dir>    -> projectDir
  check decision-coverage-plan <dir>   -> projectDir   (via resolvePath)
  check gap-analysis.plan-post <dir>   -> projectDir

#4327 understated its own severity. It reports that a traversal name
"resolves outside the todos root", which reads as an information leak.
Measured, it was destructive: the command exited 0, MOVED the outside file
into completed/, and unlinked the original. cmdTodoComplete ends in
fs.unlinkSync(sourcePath), so an unconfined name consumed across the
boundary rather than merely reading across it. Validation now precedes every
fs call — existsSync, readFileSync, ensureDir, writeSync, unlinkSync — and
both halves of the move are confined, so neither source nor destination can
land outside the root. --dry-run is rejected on the same terms; a preview
must not leak a resolved outside path either.

#4354 reproduces exactly: a BLOCKING gate returned block:false sourced
entirely from a SECURITY.md in a caller-chosen directory outside the project.

THE HARDER HALF, found by the isolated adversarial review of the first
attempt: validating a path and then using a DIFFERENT one closes nothing.
The first fix validated `--phase-dir` joined against `--cwd`, then passed the
RAW unjoined value into the predicate context. gate-predicate-evaluator uses
it as-is and findPhaseArtifact resolves a relative path against the REAL
process cwd — so validation and the read used two different roots whenever
process.cwd() differed from --cwd. Reproduced: running from a directory
holding a plan with `secret_field: LEAKED_VALUE`, a predicate declared
against an empty --cwd project exited 0 and returned "actual":"LEAKED_VALUE".

The rule now applied at all three router sites: **use the validated resolved
path, never the raw input.** Independently re-verified after the fix — the
lookup resolves in the --cwd project and no value leaks.

gate-predicate-evaluator.cts is untouched and still imports no fs. Confining
in the router is what keeps that pure-leaf contract intact AND covers
${PHASE_DIR} interpolation into command-exit-zero, which an evaluator-local
fix would have missed entirely.

Also fixed, same review: `todo complete .` and `..` passed containment
(they resolve to the pending dir, which IS inside the root) and then threw an
uncaught EISDIR with an absolute-path stack trace. Now a clean USAGE
rejection naming the real reason — "todo name is not a file" — rather than
borrowing the escape message, which would have stated something false.

Ripples discharged BEFORE the verification checkpoint rather than after, per
the Phase 1 retrospective: docs/reference/gate-predicates.md and
docs/CLI-TOOLS.md document the new constraints, CONTEXT.md records why
containment lives at the router rather than the evaluator, the changeset is
written, and the install-tree goldens were regenerated to confirm unchanged
(no new shipped file) rather than assumed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 09:43:50 -04:00
Tom Boucher
241646a43a fix(#4651): classify .env names by final extension, and close the trailing-dot alias bypass — Phase 1 of #4636 (#4659)
* test(#4651): failing-first coverage for final-extension classification

Phase 1 of epic #4636, absorbing #4580. Tests only; no fix. These MUST fail.

The guard classifies a name by comparing everything after `.env.` as one
token against a set whose members are FINAL EXTENSIONS. So `.env.local.example`
yields suffix `local.example`, which is not a member, and a committed
secret-free template is refused. That is a category error, not strictness.

Two arms are covered because the same classification is hand-rolled twice in
one file: `isSecretBasename` for Read/Bash, and `globAltSelectsSecret`
(`lit.startsWith('.env.')`) for Grep globs. Fixing one alone would ship a
guard that allows `cat .env.local.example` while refusing
`Grep --glob '.env.local.example'` — the same file, the same hook, opposite
answers. A cross-arm parity loop over one shared list asserts the two cannot
drift.

Rows that exist because they are the ones nobody enumerates:

- `.env.example.local` must stay BLOCKED. Final extension is `local`; this is
  dotenv's documented local-override convention and a real secret. Any fix
  shaped as "contains example" admits it.
- `.env.local.` must stay BLOCKED — empty final extension is not a member.
- `.env.` must stay ALLOWED. Note #4580's proposed patch adds
  `if (suffix === '') return true;`, which flips it to blocked; that breaks the
  existing `allows` assertion in this suite and broadens the protected set,
  which epic #4636's non-goals forbid. Not applied.
- `.env.local.exam*` (partial glob literal) must stay BLOCKED — it can select
  `.env.local`, and a partial literal cannot be classified.
- `*.example` and `*` must stay ALLOWED — regression protection on the arm
  that already works.

Local behavioral repro of the current guard, confirming the tests fail for the
right reason rather than by construction:

  .env.local.example  rc=2 (blocked)   <- the defect
  .env.example        rc=0 (allowed)
  .env.local          rc=2 (blocked)
  .env.example.local  rc=2 (blocked)
  .env.               rc=0 (allowed)
  glob .env.local.example  rc=2        <- the second arm

Regressions are folded into the owning module's suite rather than a new
tests/fix-NNNN-*.test.cjs file, per scripts/lint-regression-test-names.cjs.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4651): classify by final extension so .env.<name>.example is readable

Phase 1 of epic #4636, absorbing #4580. Implements ADR-4650 decision 5.

The guard compared everything after `.env.` as ONE token against a set whose
members are FINAL EXTENSIONS. `.env.local.example` yielded `local.example`,
which is not a member, so a committed, secret-free template was refused — the
guard blocked the one file that exists so nobody has to open the real `.env`.

That is a category error, not strictness. The fix is not "add local.example to
the set"; it is to compare the right token. hooks/lib/filename-classification.js
now owns that distinction and is the only place it is expressed.

Both arms are fixed, because the same classification was hand-rolled twice in
this one file:

  - isSecretBasename (Read/Bash) now tests finalExtension(suffix).
  - globAltSelectsSecret (Grep --glob) split its first branch. With no
    wildcard the alternative IS a whole filename, so it is classified exactly
    via isSecretBasename. With a wildcard present the literal is only a
    PARTIAL prefix (`.env.local.exam*` can still select `.env.local`) and
    cannot be classified, so the original conservative rule stays.

Fixing only the first would have shipped a self-contradicting guard: `cat
.env.local.example` allowed while `Grep --glob '.env.local.example'` refused —
same file, same hook, opposite answers. A cross-arm parity loop over one shared
list now asserts the two cannot drift.

Two deliberate departures from #4580's suggested patch, both verified:

  - Its `if (suffix === '') return true;` is NOT applied. That flips `.env.`
    from allowed to blocked, breaking an existing assertion in this suite and
    broadening the protected set, which epic #4636's non-goals forbid.
  - `fullSuffix` was drafted alongside finalExtension and removed before
    commit: zero production consumers, and none planned (Phases 2-4 are
    containment, duplicate draining and the path-join ratchet, none of which
    classify filenames). A zero-caller export is dead code. The distinction is
    pinned instead by a test asserting finalExtension('local.example') is
    'example' and explicitly NOT 'local.example'.

The protected set is unchanged. `.env.example.local` stays BLOCKED — its final
extension is `local`, dotenv's local-override convention and a real secret;
any fix shaped as "contains example" admits it.

Scoped out by measurement, not assumption: src/validate.cts:395 and
src/phase.cts:1674 also hand-roll lastIndexOf('.'), but both parse phase
identifiers (`3.2` -> parent `3`), owned by the phase-id.cts seam. Folding
them in would repeat this same category error in the opposite direction.

Checkpoint 1 (prove RED) on the tests-only commit 91d3d6e1: outcome=failed,
26 failures / 45330, all 26 in the two new test files, zero pre-existing.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4651): document the widened template exemption and cover the Bash arm

Two findings from the isolated adversarial review, both fixed in place.

1. The header's "Stated cost" passage named only the four literal template
   names, but since this change the exemption keys on the FINAL EXTENSION, so
   the trusted set is `.env.<anything>.{example,sample,template,dist}` — an
   unbounded family. The reviewer demonstrated it: `.env.prod-real-secrets.example`
   is allowed. That is the deliberate and necessary cost of fixing #4580, but
   it was materially larger than what the header disclosed, and a silent
   expansion of a security guard's trusted set is not acceptable. The passage
   now states the family, the concrete bypass, and that it applies across
   Read, Grep and Bash alike.

2. The cross-arm parity loop asserted Read and the exact-literal Grep glob but
   not Bash, whose `namesSecret` -> `isSecretBasename` path is genuinely
   distinct. The Bash arm was covered only by two one-off tests outside the
   shared table, so the table could not have caught a drift there. The loop now
   drives all three arms from the same TEMPLATES/SECRETS arrays.

No classification logic changed. The Read-arm behavioral table is byte-identical
before and after: rc=0 for .env.local.example / .env.example / .env. ; rc=2 for
.env.local / .env.example.local / .env / .secrets.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4651): treat trailing dots and spaces as aliases of the protected file

Closes a Windows path-alias bypass surfaced by the isolated adversarial review
of this phase. Maintainer-approved as in scope.

Win32 strips trailing dots and spaces from every path component, so `.env.`,
`.env..`, `.env `, `.env. `, `.env .`, `.secrets.` and `.secrets ` all resolve
to the real `.env` / `.secrets` on Windows. The guard allowed every one of them
— a bypass of a file it already protects, reachable from Read, Grep and Bash
alike. `isSecretBasename` now normalizes the basename before classifying.

The whole class is fixed, not the reported name. `.env.` alone would have left
`.secrets.` and the trailing-space forms open, which is the same
one-cause-explains-every-failure trap this epic exists to close.

Two consequences, both measured rather than assumed:

  - `.env.example.` flips blocked -> ALLOWED. It aliases the already-trusted
    `.env.example` template, so this is correct; it was previously blocked only
    because the trailing dot broke final-extension parsing.
  - A Bash token that is exactly `.env` plus trailing whitespace flips
    allowed -> BLOCKED. Verified this is CONSISTENCY, not a new false-positive
    class: the bare `.env` token was ALREADY blocked as an operand in the same
    position before this change, so the alias now simply behaves like the thing
    it aliases.

The header's "No whitespace trimming" guarantee is preserved and now stated
precisely: leading and interior whitespace is still never trimmed, so prose
like a commit message mentioning `.env` in a sentence stays prose and stays
allowed. Only TRAILING dots and spaces are stripped. Two tests pin that.

This lands at the same behavior #4580's proposed `if (suffix === '') return
true;` would have produced for `.env.`, which this phase earlier rejected. The
rejection was correct on its stated grounds — that line broadens the protected
set, which epic #4636's non-goals forbid. The Windows framing is different:
normalizing an alias of an already-protected file is not a broadening, and the
fix is reached by normalization rather than by special-casing an empty suffix,
so it generalizes to `.secrets.` and the space forms.

Cannot be reproduced on this host — the remote matrix is Linux-only and Windows
coverage arrives from CI — so this ships on the Win32 path-normalization
contract plus the CI lane, and that limitation is stated rather than implied.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4651): one owner for path segmentation, closing a Read/Grep divergence

Four findings from the two-axis review, all fixed in place.

The real one: the guard had TWO path-segmentation rules. `lastSegment` (used
by Read and Bash via `namesSecret`) splits on both `/` and `\`, while
`classifyGrepGlob` hand-rolled its own on `/` only. Measured:

  Read  of `config\.env`      rc=2  BLOCKED
  Grep  --glob 'config\.env'  rc=0  ALLOWED

Same logical file, opposite answers — precisely the divergence this epic
exists to remove, sitting inside the file this phase was already fixing.
`lastSegment` now lives in hooks/lib/filename-classification.js and both arms
call it. All five path-bearing cases (both separators) now agree.

Note on how this was nearly missed: the first measurement of it reported
"both allow", which looked like the reviewer was wrong. That reading was a
measurement artifact — `config\.env` inside a printf'd JSON payload is an
invalid escape, so the hook fails open at rc=0 and the test was observing
JSON breakage rather than the predicate. Re-measured with correct escaping,
the divergence is real. The tests added here use properly escaped literals
and were verified by running, not by reasoning about the escaping.

Also fixed:

  - Both fast-check properties were satisfied by a degenerate
    always-return-'' implementation: "never contains a dot / is a suffix" and
    "never ends with dot-or-space / is a prefix" are both trivially true of
    the empty string. They now additionally pin content preservation — the
    removed tail must match /^[. ]*$/, and a name with nothing to strip must
    come back unchanged.
  - The cross-arm parity loop used only bare basenames, so it could not have
    caught the divergence above. It now covers path-bearing names with both
    separators.
  - That loop's description overclaimed: Read and Bash BOTH route through
    `namesSecret`, so they are not independent paths; only the Grep glob arm
    is genuinely separate. The description now says so rather than implying
    three-way independence.
  - `normalizeWindowsBasename` runs on every platform, not only Windows. Its
    doc now states that explicitly: the guard must answer identically
    everywhere, and a name is judged by what Win32 would resolve it to.

No classification logic changed; the 12-name regression sweep is unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4651): regenerate install-tree goldens, correct the guard's user-facing docs

Three things, all consequences of the fix rather than new behavior.

1. Install-tree goldens. `hooks/lib/filename-classification.js` is a SHIPPED
   file — package.json `files` includes `hooks` — so every per-runtime install
   tree gains a path. Checkpoint 2 failed on exactly this: 11 failures, all in
   tests/golden-install-tree.test.cjs, against 45356 passing. Regenerated via
   scripts/gen-install-tree-fixtures.cjs; 11 goldens changed, matching the 11
   failures one-for-one.

   This ripple was identified at design time and then not acted on. Fleet's
   impact preview named golden-install-tree.test.cjs before any code was
   written, and 40-design.md records it under "Ripples identified". Writing a
   risk down is not the same as discharging it, and a full matrix run was spent
   discovering something already known.

2. docs/USER-GUIDE.md made a precise and now-false claim about the guard's
   protected set: it named `.env.example` / `.sample` / `.template` / `.dist`
   as the four exempt names. The exemption keys on the FINAL EXTENSION, so the
   exempt set is the unbounded family `.env.<anything>.{example,sample,template,dist}`.
   The page now states that family, the widened residual, that order matters
   and only the last segment counts (`.env.example.local` is a secret), and
   that trailing dots and spaces are stripped because Windows resolves them to
   the protected file. A wrong user-facing model of what a security guard
   protects is worth correcting even though Fixed/Security changesets are
   exempt from the required-docs rule.

   docs/ARCHITECTURE.md and docs/INVENTORY.md say "templates such as
   `.env.example` exempt" — non-exhaustive, still true, deliberately left
   alone. Same for the ja-JP / zh-CN / ko-KR / pt-BR rows, which carry the same
   hedged phrasing; hand-translating a security description unreviewed is not
   something to do silently.

3. Two changeset fragments, not one. A refusal corrected is `Fixed`; a bypass
   closed is `Security`. Folding the second into the first would under-report
   it in the release notes. Both carry `pr: 0` for backfill once the PR exists.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4651): backfill changeset PR number to 4659

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-12 08:42:43 -04:00
Tom Boucher
8fa2c3dbcf docs(#4650): record the path-containment and filename-classification design lock (#4655)
Phase 0 of epic #4636. ADR-4650 fixes the decisions Phases 1-4 inherit, so that
four phases do not each invent them independently.

The load-bearing decision is that the engine and the exported shape are
separable. A resolver-based, symlink-safe containment predicate already exists
as validatePath, and building the epic's literal assertWithinRoot() from scratch
would create a sixth implementation of the very thing this epic consolidates --
while risking silent loss of behavior validatePath acquired as bug fixes (a
closed dangling-symlink existence oracle, ancestor canonicalization for
non-canonical roots, a separator-aware boundary test).

But the epic's other clause is correct and lands on the current export:
validatePath returns a boolean a caller can forget to check, and populates
`resolved` with the escaping path precisely on the traversal branch. While that
form stays exported, the Phase-4 ratchet could only assert that a helper was
called -- validatePath(x, root).resolved would pass the rule.

So: preserve the engine, narrow the export. assertWithinRoot becomes the only
export and yields a branded ContainedPath.

Also recorded, each found by measurement rather than from the epic text:

- The rejection message text is a real contract. tests/quick-batch.test.cjs
  asserts a user-facing `reason` field matches /escapes allowed directory/, so
  the string reaches CLI consumers and Phase 3 must preserve it verbatim.
- Two further unconfined boundaries the epic does not enumerate: resolvePath
  and gap-analysis.plan-post, both in check-command-router.cts.
- --phase-dir also interpolates into ${PHASE_DIR} for command-exit-zero, so
  confining at the boundary covers both predicate kinds; the evaluator stays
  fs-free.
- opts.allowAbsolute is a per-call-site liberality knob, which is an acceptance
  policy living exactly where this ADR says it must not.
- planning-inspect's isWithinRoot is deliberately pure-string with no I/O; its
  contract differs, so Phase 3 decides rather than assumes.

The acceptance policy is stated once: conservative about the resource, exact
about the classification. #4580's guard was not too strict, it was wrong -- a
category error comparing a whole suffix against a set of final extensions.

ADR opens as Proposed; ratified at Phase 4 closeout per docs/adr/README.md.
No changeset: the diff touches docs/adr/ only, which is outside
USER_FACING_PREFIXES in scripts/changeset/lint.cjs.

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-11 23:45:04 -04:00
Tom Boucher
4d65c248e5 fix(#4641): make test-conformance the sole Windows selector and narrow the tier to 28.5% (#4643)
* test(#4641): failing-first tests for the tier ceiling and a single Windows selector

Tests only, committed ahead of the implementation so the RED run is real.

- tests/platform-conformance-tier.test.cjs: tier-size ceiling asserted as a
  ratio against a live denominator (Windows 33%, macOS 25%); per-helper negative
  cases proving seam calls and path-call-plus-slash-literal are not platform
  signals; positive pins that genuine platform content, seam-bypassing spawns,
  chmod and symlink still classify in; macOS signal set and generated list
  unchanged.
- tests/ci-full-lane-sharding.test.cjs: the test job has zero windows-latest
  rows and test-conformance still has 3 windows + 1 macOS.
- tests/ci-test-scope.test.cjs: windows_tests is absent rather than empty, a
  non-tier test file no longer forces full_matrix, a RULE-pulled windows-hint
  test does, and resolveSelection rejects the retired windows scope.

Refs #4589, #4591, #4592, #4593, #4603

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4641): delete the second Windows selector and narrow the conformance tier

Epic #4589's goal — the OS-agnostic bulk on Linux, a small explicitly-scoped
conformance tier on real Windows/macOS — was not met. Measured on PR #4640
(run 34618834118): 7 non-Linux jobs, a 546/930 (58.7%) "tier", and 5 of 7
changed test files running on a real Windows runner twice.

Two selectors, only one in the epic's scope. The test job's three scope:windows
shards predate the epic (#494, sharded #3057) and gate on product_changed, not
full_matrix, so they fire on every product PR whatever Phase 3's classifier
decides. They are deleted; test-conformance becomes the sole Windows selector,
as it already was for macOS. Non-Linux jobs 7 -> 4.

Gating the lane instead was rejected as provably redundant: for a test file
reachesConformanceTierOrSeam is literally CONFORMANCE_TIER_FILES.includes(file),
and that same predicate sets full_matrix, which turns test-conformance on. Every
file a gated lane would run is already covered in the same run. The lane's one
non-redundant residue -- RULE-pulled tests matched by the isWindowsHint filename
heuristic -- is ported into reachesConformanceTierOrSeam so it sets full_matrix
instead of feeding a parallel lane.

Two detectors matched the repo's own test idiom rather than any platform signal
and carried 226 of the tier's sole-signal membership against 41 for the other
eight: process-seam-subprocess (335 files, 118 unique) matches the
tests/helpers.cjs entry points nearly every CLI test uses, and going through the
seam is the opposite of a platform signal since shell-command-projection takes
platform as an injected parameter; hardcoded-path-vs-path-call (328, 108) needs
only a path call anywhere plus a slash literal anywhere, and that class is
already enforced by ADR-1703's Linux-runnable ESLint rules. Both are removed.
Tier 546 -> 254 (27.3%). src/ reachability is unchanged at 28 files, measured.

Adds the size gate Phase 2 never had, as a ratio against a live denominator so
it cannot stop binding as the suite grows.

292 files leave real-OS Windows execution. The drop-out set was audited: 14 have
a platform-suggestive filename and all 14 are static source-text analyses or
seam-mediated CLI tests. raw-child-process was investigated as a suspected false
negative and left unchanged -- relaxing it adds 13 files, all false positives.

macOS is untouched: MACOS_CATEGORIES is a separate array and the regenerated
macos-conformance-tier.generated.cjs is byte-identical at 196 files.

Fixes #4641
Refs #4589, #4591, #4592, #4593, #4603

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4641): register the new ADR path in the docs-guard exempt baseline

tests/ci-test-scope.test.cjs references docs/adr/4641-windows-selector-consolidation.md
in a comment justifying the retired windows scope; lint-docs-guard-registration
tracks that reference set, so the baseline needs the new path. Verified the
exemption still holds: the path is prose, not a filesystem read.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4641): make the escalation tier-backed and drop every hardcoded count

Three follow-ups from measuring the first pass rather than trusting it.

The windows-hint escalation now requires tier membership as well as the
filename hint. Setting full_matrix runs test-conformance, which runs only the
tier; escalating on a test that is NOT in the tier costs four jobs and still
never runs that test on Windows. Measured over the 16 RULES entries the
narrowed predicate fires on exactly the same rules today, so this is
correct-by-construction rather than a behavior change. The broader variant --
escalate on any tier member a rule pulls in, ignoring the hint -- was measured
at 14/16 rules and rejected as over-broad.

Removes the hardcoded counts. A hardcoded macOS tier length of 196 broke as
soon as the rebase pulled in one new test file from #4253, which is the whole
argument against them: the ceilings are ratios against a live denominator, the
committed lists are pinned by comparison against a fresh classification of the
live tree, and the three named probe files now assert on their SIGNAL rather
than on membership in a literal list -- asserting by filename is the exact
error this PR fixes in the classifier.

Regenerates both lists against the rebased tree. Same-tree figures are now
547 -> 255 of 931 eligible (58.8% -> 27.4%), 292 entries removed and none
added; macOS is unchanged at 197 with a zero-line diff.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4641): restore real-shell-spawn coverage and repair assertions the narrowing broke

An isolated adversarial review found a real false negative. Removing the
blanket process-seam-subprocess detector also removed the only coverage for
tests that spawn a REAL shell: tests/helpers/process-seam.cjs's runHook
spawns options.interpreter via real spawnSync, so
runHook('-c', [script], { interpreter: 'bash' }) runs a real bash binary
executing a shell script extracted from workflow markdown. The seam argument
holds for src/shell-command-projection.cts, which takes platform as an
injected parameter; it does NOT hold for the test helpers, which spawn real
binaries. Conflating the two is what made the blanket detector look purely
noisy -- it was 99% noise wrapping a real signal.

Adds a narrow shell-interpreter-spawn category keyed on a real interpreter
option. Measured 2026-09-11: 33 files match, 9 were outside the tier and are
added back, taking it 255 -> 264 of 931 (27.4% -> 28.4%), still under the 33%
ceiling. All 9 confirmed by reading the matching source line, zero comment or
fixture matches. runGit-alone and non-node-spawnSeam alternatives were measured
and rejected -- each adds 9 files but misses the counterexample entirely.

Fixes a real bug the suite caught: jobs.test is ubuntu-only now that its
scope:windows rows are gone, so it must wire GSD_STRICT_LIVE_CONFIG_GUARD
strictly rather than carrying the Windows report-only carve-out. The carve-out
now lives solely on test-conformance, whose matrix does include windows.

Repairs seven pre-existing assertions the category removal invalidated,
preserving each case's purpose rather than deleting coverage, and converts the
last hardcoded tier bounds to live-derived ratios -- including the macOS
sanity range that was still a magic [100, 350].

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4641): keep the confinement test on a real OS via a documented allowlist

A security review found tests/external-descriptor-confinement.test.cjs had
dropped out of the Windows tier. It must stay in, and no content signal can
express why: it exercises isPathConfined (src/external-descriptor-trust.cts),
which uses the AMBIENT path module -- path.resolve(root, target) and path.sep
-- with no injection. Its win32 semantics (drive letters, UNC, separator) are
only reachable by actually running on Windows, and it is a security-relevant
write-confinement gate. A content classifier cannot see 'this module reads the
ambient path module', so no regex belongs here.

Adds ALWAYS_REAL_OS, a Map of path -> recorded reason, unioned into the Windows
tier only. A Map rather than a list so an entry without a reason is impossible
by construction, and tests assert every entry names a file that exists on disk
so a stale entry fails loudly instead of rotting. This is the centrally-
enumerated single source of truth epic #4589 Phase 2 asked for and ADR-1703's
portability-vocab.cjs already models -- deliberately not a heuristic.

Windows tier 264 -> 265 of 931 (28.5%), still under the 33% ceiling. macOS is
untouched and byte-identical: the win32 concern does not apply to a POSIX
runner, and a test asserts the allowlist does not leak into that tier.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#4641): inject the path impl into isPathConfined and correct the ADR count

Two review findings, both fixed rather than dispositioned.

A security review found tests/external-descriptor-confinement.test.cjs had left
real-OS execution. The allowlist pinned it back, but that only restored
INCIDENTAL coverage: isPathConfined used the ambient path module, and its test
carried POSIX-only literals, so a win32 confinement escape was unverified on
every platform including Windows. isPathConfined now takes an optional third
parameter carrying the path implementation, defaulting to the ambient module.
Blast radius is CRITICAL -- 53 affected symbols across 19 files -- so the change
is purely additive and every existing two-argument caller is byte-identical.

Tests now inject path.win32 and path.posix, covering a different drive letter,
a cross-drive absolute, backslash and forward-slash traversal, UNC, and the
startsWith prefix-boundary bug (.gsdEVIL against root .gsd) on both separators.
Proved load-bearing: dropping the + p.sep from the prefix check fails exactly
the two boundary cases and nothing else. Callers' suites 149/149.

The spec review caught an off-by-one: the ADR narrated a 264-file tier while the
committed list holds 265. The ADR now records the full chain 547 -> 255 -> 264
-> 265 (28.5%).

Also corrects a stale comment in scripts/docs-guard-registry.cjs that narrated
classify() as zeroing windows_tests, a key this change removes -- kept as
historical narration but labelled as such.

Refs #4641

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#131): make the unwritable-HOME test actually test something

Found by sweeping for the root-bypass class after fixing commit-files-deletion.
This one is the silent variant, and it was broken twice over.

First, the condition: the test made a fake HOME unwritable with chmod 0o500.
The gsd-test Docker bench runs as root, root bypasses mode bits, so HOME stayed
writable and the hostile condition never existed. Replaced with a HOME whose
PARENT is a regular file, so every write under it fails ENOTDIR at the VFS
layer for every uid -- no permission check is involved at all.

Second, and more fundamental: the probe was npm --version, which on npm 11.19.0
performs zero filesystem I/O against HOME. Proven rather than assumed --
neutralizing runNpm()'s isolation turned the sibling test red while this one
stayed green, so its assertion could never detect the regression it guards, on
any uid, with or without the condition fix. npm config get cache was tried next
and proved vacuous the same way (it only string-resolves the path). The probe is
now npm cache verify, which really does mkdir _cacache under HOME.

Re-proved load-bearing after the change: with isolation neutralized the test now
fails with ENOTDIR on <blocker>/home/.npm/_cacache. tests/helpers.cjs was
restored and verified diff-clean; suite 13/13.

Refs #4641

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4641): correct the net drop-out figure in ADR-4641

The Consequences section still said 292 files leave real-OS Windows execution.
That was the count before the narrow shell-interpreter-spawn replacement
restored 9 and ALWAYS_REAL_OS pinned 1. Net is 282. Also names both real-binary
categories rather than only raw-child-process, and clarifies that the 14-file
filename audit was against the 292 initially dropped.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4641): record the rejected concentration ceiling and its measurement

Applying Goodhart's own question to the new ceiling -- how would you make this
metric look good without improving what it represents -- surfaces a real
weakness: a ratio can be satisfied by inflating the denominator, so adding
OS-agnostic tests loosens it without narrowing the tier.

The obvious companion gate was a sole-signal concentration ceiling, since the
original defect was one detector carrying half the tier. Measured and rejected:
peak concentration post-fix is raw-child-process at 53/265 = 20.0%, against the
historic offenders at 21.6% and 19.8%. Any threshold above 20% misses the
original defect; any threshold below it fails on a legitimate category. The
discriminator is whether a signal is platform-meaningful, which no threshold
encodes. Weakness disclosed rather than covered by a gate that does not bind.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* chore(#4641): add the changeset fragment for the confinement-check change

changeset-lint failed on PR #4643: the PR touches user-facing paths and carried
no fragment. The earlier no-changeset call matched #4604's CI-only precedent and
was correct then; it was not revisited once the PR grew a src/ change, which is
my miss.

The fragment describes the real user-visible improvement: the external-descriptor
write-confinement check's Windows semantics are now verified deterministically
rather than only when the suite happened to run on Windows.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4641): correct the tier count in TESTING-SUITES.md

Said the tier narrowed from 546 to 254. The final committed list is 265 of 931
eligible (58.8% -> 28.5%) after the shell-interpreter-spawn replacement restored
9 files and ALWAYS_REAL_OS pinned 1. Same error class the spec review caught in
the ADR, in a live reference page rather than a dated record, so it states the
current truth rather than carrying an amendment note.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4641): record the measured aggregate from real CI job lists

Epic #4589's closeout asserted its reduction from a static count; #4641's
acceptance criterion asks for a figure read off a real run. Recorded here:
test.yml job count 21 -> 15 and non-Linux 7 -> 4, comparing PR #4640's run
against this PR's own. Against the true pre-epic baseline of 9, that is 9 -> 4.

Also states the caveat that a PR's total CHECK count is not a clean before/after
comparison, since many gates are path-scoped and this change touches a broader
path set -- the like-for-like figure is the test.yml job count.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4641): compare job totals the same way on both sides

The measured-aggregate table put #4640's COMPLETED run total (21) against this
run's count at matrix-expansion time (15). Those are not the same measurement:
the completed total includes the post-test Coverage gate and baseline-publisher
jobs. Counted identically, it is 21 -> 17. The load-bearing figure, non-Linux
jobs 7 -> 4, was correct and is unchanged.

Called out in the table rather than silently corrected -- comparing two
differently-derived numbers is exactly the error class this ADR is about.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4641): record measured conformance wall-clock and date the stale counterfactual

Adds the per-job durations from both runs. The honest read is that this is a
correctness win more than a speed one: file count fell 52% but wall-clock only
9-29%, because what was removed were the cheap static tests and what remains is
concentrated in expensive spawn-heavy work. Stated explicitly so nobody expects
a future narrowing to buy time proportional to file count.

The load-bearing figure is windows shard 3/3: 40m24s against a 45-minute cap on
the 547-file tier -- 90% of the cliff #869 and #3057 were both filed about --
pulled back to 31m27s. macOS moved the wrong way (17m48s -> 21m02s) while its
tier was UNCHANGED at 197 files, which fixes that as runner variance and is
noted as a caution against reading a single duration as signal.

Also dates the symlink-keyword counterfactual, which cited a 254-file tier from
before the replacement category and allowlist took it to its final 265.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* docs(#4641): re-measure against the rebased tree and disclose the allowlist's zero

next gained #4644 mid-flight, so every absolute count shifted. Re-measured on
the tree this actually ships against (932 eligible): 548 -> 257 by detector
removal, 257 -> 266 once shell-interpreter-spawn restores 9. Net 282 removed,
9 restored. macOS 198, unchanged by this PR.

The percentages did not move across three rebases (58.8% -> 28.5%), which is
the whole argument for expressing the ceilings as ratios rather than counts --
noted in the ADR since it is now evidence rather than assertion.

Also discloses that ALWAYS_REAL_OS now contributes ZERO files: this PR's own
win32 test cases introduced the literal win32 into the pinned file, so it
classifies in on content via win32-darwin-literal. The entry stays and the
reason is written down, because the file's real-OS need is a property of the
code under test (isPathConfined reads the ambient path module), not of the
test's text -- the text that currently saves it is incidental and could be
refactored away silently.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-11 17:00:11 -04:00
Tom Boucher
5e0a7b1b56 fix(#4433,#4569,#4126): consolidate the phase-identity seam at name-validity, allocation, and branch-slug (#4640)
* fix(#4433): apply the name-validity guard symmetrically to every milestone-name capture

extractMilestoneHeadingName already refused a punctuation-only captured name
(#4134), but its two sibling capture sites in getMilestoneInfo — the
STATE.md-anchored 🚧-bullet match and the no-STATE.md in-progress 🚧-bullet
fallback — skipped straight to a bare truthiness check, so a malformed bullet
whose only content past the version was punctuation passed through as a real
milestone name.

Extracts the existing inline /[\p{L}\p{N}]/u check into a single shared
hasNameableContent predicate and applies it at all three capture sites, so
the guard is one owner rather than a copy that happened to land at only one
of them.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#4433): pin the name-validity guard at all three milestone-name capture sites

Failing-first coverage for the hasNameableContent extraction: a
punctuation-only 🚧-bullet name must not surface as a real milestone name,
either on the STATE.md-anchored path or the no-STATE.md in-progress
fallback, while a real name (including a digits-only one) still resolves
COMPLETE exactly as before.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4569): consolidate decimal-phase-number allocation into one function

cmdPhaseInsert allocated its next decimal sub-phase number by scanning only
on-disk phases/ directories and ### Phase N.M: headings, never the roadmap
summary checklist — so a decimal that existed only as a checklist bullet
(no heading yet, no on-disk directory yet) was invisible, and phase insert
could silently reallocate an already-used number. It also always nested one
level deeper under afterPhase, with no way to request a sibling.

cmdPhaseNextDecimal had its own separate, near-identical two-source scan
(missing the checklist source too) — the exact "duplicate implementations
kept in sync instead of deleted" pattern this issue exists to close.

Extracts scanExistingDecimalPhaseNumbers (directories + headings + checklist
bullets, in one place) and migrates both cmdPhaseInsert and
cmdPhaseNextDecimal onto it — deleting cmdPhaseNextDecimal's own copy rather
than patching it in parallel. Adds an allocation: 'nested' | 'sibling'
argument to cmdPhaseInsert (default 'nested', matching every existing
caller's behavior); a top-level phase with no existing decimal segment falls
back to nested since there is no sibling level to join. No CLI flag wires
'sibling' yet — that is a separate, disclosed follow-up.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#4569): pin decimal-allocation coverage across phase insert and next-decimal

Failing-first coverage for scanExistingDecimalPhaseNumbers: a checklist-only
decimal must not be reallocated by phase insert; a decimal present in
heading, checklist, and on-disk directory simultaneously must count once;
an unrelated phase family's checklist bullet must not cross-pollute; and
phase next-decimal (migrated onto the same shared helper) must see a
checklist-only decimal too, closing the same gap in a second command.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#4634): extend the phase-id drift guard for name-validity and shell arithmetic

The epic's ratchet requirement: lint-phase-id-drift.cjs must cover the two
new predicates this PR introduces, and must also scan shell inside
gsd-core/workflows/**/*.md and gsd-core/references/**/*.md for
integer-coercing phase-number arithmetic ($((10#...)) and friends), which
neither the canonical TypeScript module nor a source-only lint can reach.

Adds findNameValidityDrift (bans re-deriving /[\p{L}\p{N}]/u outside
hasNameableContent's owner file) and findShellPhaseArithDrift +
scanMarkdownShellArith (bans $((10#...)) in workflow/reference markdown,
sanctioned via <!-- phase-id-owner: --> on the preceding line). scanRepo
keeps its existing, narrower contract (src/**/*.cts only) so the
already-passing "the live repo is clean" test is untouched; a new scanAll
merges both for the CLI's full report.

Running the guard directly against this tree correctly reports the 7
pre-existing #4619 shell sites (workflows/execute-phase.md x4,
workflows/execute-phase/steps/completion-reconciliation.md x2,
references/tdd.md x1) as violations — demonstrating the ratchet works, not
fixing them. #4619 is a live regression tracked and fixed separately; this
PR does not touch those markdown files. A characterization test pins the
current count of 7 so a future change to that number is investigated rather
than silently absorbed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4569): wire --sibling through phase insert's CLI so the argument is reachable

cmdPhaseInsert's allocation parameter had no CLI path to 'sibling' — shipped,
untested, unreachable code (code-review finding: a guaranteed surviving
mutant). Adds --sibling to phase insert's argument parsing, threads it
through, and documents the flag in docs/CLI-TOOLS.md.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#4569): exercise --sibling end-to-end through the real CLI

Confirms --sibling joins afterPhase's parent decimal level rather than
nesting, and falls back to nested when afterPhase has no existing decimal
segment (no sibling level to join).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#4634): demonstrate the two new drift detectors end-to-end via a planted violation

The epic asks for the guard to be "demonstrated by watching it go red" on a
reintroduced copy. The two new detectors (name-validity, shell-arith) had
only unit-level fixture tests; mirrors the existing bracket-rule's
planted-violation-in-a-temp-tree test for both, proving they're actually
wired into scanRepo/scanMarkdownShellArith end-to-end, not just correct in
isolation.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#4634): consolidate the drift guard's own owner-sanction-check logic

Standards review flagged the "walk to nearest preceding non-blank line,
check for a phase-id-owner comment" logic as duplicated across all four
detector functions in a PR whose whole point is eliminating exactly that
pattern. Extracts isSanctionedByPrecedingComment, shared by all four;
behavior-preserving (verified: identical output before/after, same 7 known
#4619 violations, zero token/bracket/name-validity).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#4634): add Fixed changeset for the name-validity guard and allocation consolidation

pr:0 placeholder — backfilled once the real PR number exists.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4126): consolidate branch-name slug substitution into one shared renderer

cmdCommit (commands.cts) and cmdInitExecutePhase (init.cts) each
independently implemented branch-name template substitution, and both
substituted the literal string 'phase' when phase_slug was empty or
undeliverable — producing a non-identifying branch name (gsd/phase-08-phase)
that contradicted the honestly-reported phase_slug: null in the same
payload. Same structural defect as the other three gaps in this epic: two
consumers reimplementing one concept independently instead of sharing an
owner.

Adds renderPhaseBranchName (src/phase-id.cts) as the sole owner: a real slug
substitutes normally; an empty/undeliverable one drops the {slug} token plus
one adjacent separator (collapsing/trimming the result) rather than
substituting a placeholder word, for the shipped default template and any
user-configured shape alike. Both call sites now delegate to it; the old
inline duplicates are deleted, not kept in sync. {project} substitution
stays a separate step in init.cts, unchanged, since it is a config-level
field with its own fallback contract.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* test(#4126): pin renderPhaseBranchName and both migrated call sites

Property-based coverage for the shared renderer's degrade-path invariant
(output, when non-null, never contains {slug} and never starts/ends with a
separator), plus example coverage for real-slug substitution, empty/null/
non-string slug, token position at either edge, a doubled-separator
template, and the only-{slug} -> null case. One regression test each in
commands.test.cjs and init.test.cjs confirms a phase with no derivable slug
no longer produces a branch name ending in the literal '-phase'.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix: route scanExistingDecimalPhaseNumbers through the canonical enumeration owner

Caught by an actual gsd-test run, not a hypothesis: the new decimal-scan
helper (fix(#4569)) enumerated phases/ directories via a raw
fs.readdirSync, which the pre-existing phase-enumeration drift guard
(#3185/#3882) correctly flags as an unsanctioned re-derivation outside its
canonical owner (listAllPhaseDirs / isSentinelPhaseId). Ironic given this
epic's own thesis, and exactly why the guard exists: consolidating one seam
can reintroduce drift in an adjacent one if the new code doesn't route
through what's already there. Migrates the enumeration to listAllPhaseDirs;
identical decimal-detection output for every existing case.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#4634): extend the drift guard for branch-slug fallback; fix a real regex bug

Adds the fourth detector the epic's ratchet section names ("both
branch-name sites"): bans a `.replace('{slug}', ... || 'phase')` call
outright, sanctioned via renderPhaseBranchName or a dedicated comment.
Wired into scanRepo (no per-file exemption — this is a banned anti-pattern
everywhere, not a grammar with one legitimate owner). Now that #4126's fix
(prior commit) has landed, scanRepo reports zero violations across all four
.cts-scanning rules, restoring the simple "the live repo is clean" assertion
instead of a pinned-known-count characterization.

Also fixes a real bug an actual gsd-test run caught: findNameValidityDrift's
regex didn't tolerate the doubled-backslash template-string form its own
test claimed to cover (0 !== 1) — widened to \{1,2} matching
TOKEN_DRIFT_RE's existing tolerance for the same two forms.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* docs(#4126): document the {slug} degrade behavior; update changeset for the full seam

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix: detectPhaseNumberFromFiles wrongly rejected bare, slug-less phase directories

Caught by an actual gsd-test run on the #4126 regression test, not a
hypothesis: a bare phase directory with no slug remainder (e.g.
.planning/phases/01/) has extractPhaseToken correctly return "01" — which is
simply identical to the directory name in that case, not its no-match
fallback. A stale `token !== phaseDir` check treated that equality as "no
numeric token found" and rejected it regardless, leaving phaseNum null and
silently skipping cmdCommit's phase-branching block entirely (the commit
proceeded on whatever branch was already checked out instead of the
phase branch).

phaseTokenShape.test(normalized) already excludes every genuine non-phase
case on its own: extractPhaseToken's real no-match fallback only fires for a
dirName that doesn't start with a digit or short letter+digit prefix, and
normalizePhaseName's leading-\d+ requirement rejects those regardless. The
equality check was redundant for real rejections and actively wrong for
bare-numeric directories.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore: backfill changeset PR number to 4640

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-11 12:42:04 -04:00
0xdhx
4cc2a466b5 fix(#4208): add --files-removed so commit --files can record a move without a directory pathspec (#4253)
* fix(#4208): add --files-removed so commit --files can record a move without a directory pathspec

`cmdCommit`'s `--files` list can stage an addition but never a deletion:
the #2014 guard skips a missing explicit entry because the filesystem
cannot tell "moved away" from "not written yet". A caller that moves a
file therefore had two forms, both wrong — a directory entry records the
move but also commits every unrelated file in that directory (a
concurrent session's in-flight todo, in the unattended execute-phase
sweep), and a file entry leaves the old path's deletion dangling with the
todo tracked at both paths.

`--files-removed <paths>` is the caller-declared delete intent. Each entry
names a file, or a directory whose tracked-but-absent files are the
removals; those paths are staged with `git rm --cached` and join the
commit pathspec. `--files` keeps its skip-if-missing contract untouched.
A file entry still present on disk fails the commit closed with the
existing staging-failure rollback; a never-tracked path is a no-op.
`--files-removed` alone is a declared scope, not the unscoped .planning/
sweep.

The dispatcher previously folded every non-flag token after `--files`
into that list, so a second list flag could not exist; each list now
runs from its flag to the next `--` token.

The execute-phase todo sweep names the moved todos on both sides from
CLOSED[@], and cleanup's archive commit moves .planning/phases/ and
.planning/quick/ under --files-removed.

Fixes #4208

Emitted-Drift-Ack-Growth: cleanup.md — the archive commit moves phases/ and quick/ under --files-removed; the growth is one paragraph stating why those two directories must not be --files entries

* chore(#4208): set changeset fragment pr to 4253

* fix(#4208): fit execute-phase.md under the ADR-857 ceiling and re-point the #2415 guard

Three CI failures, all consequences of this PR's own change.

1. gsd-core/workflows/execute-phase.md was 93,577 bytes against the
   ADR-857 Phase 6 margin gate's <= 93,400 (hard ceiling 93,600). The
   three-line rationale comment plus the four-line array-building block
   added 318 bytes to a file that had only 141 of headroom on next.

   Move the rationale to docs/CLI-TOOLS.md -- which this PR already
   extends with the --files-removed contract, and which is where the
   ADR-857 gate wants call-site detail to live rather than in the host
   workflow -- and fold the array build onto one line. 93,577 -> 93,372.

2/3. tests/close-phase-todos-stage-deletion.test.cjs pinned the #2415
   guarantee to its old MECHANISM: it regex-matched the literal
   .planning/todos/{completed,pending}/ directory pathspecs in the
   commit --files list. This PR deliberately replaced those with named
   files (a directory entry also committed an unrelated todo a
   concurrent session dropped in mid-close), so the guard failed on a
   change it should have accepted.

   Re-point it at the new mechanism without weakening it: assert the
   ADDED array reaches --files, the REMOVED array reaches
   --files-removed, STATE.md is still committed, and -- newly -- that
   the two arrays are built from $COMPLETED_DIR and $PENDING_DIR
   respectively. Verified by negative control: deleting
   --files-removed "${REMOVED[@]}" from the workflow still fails the
   test, so the #2415 regression remains caught.

Note for the merge queue: #4233 also grows execute-phase.md (+114). The
two are additive -- different regions, no textual conflict -- so with
both landed the file reaches ~93,486, over the 93,400 margin though
under the 93,600 hard ceiling. Whichever merges second will need to
reclaim ~86 bytes.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0183892Y3fxxirte4WNmBKbv

* fix(#4208): reclaim execute-phase.md bytes so the PR is net-neutral under the ADR-857 margin

Rebasing onto next surfaced the byte-gate collision flagged earlier on
this PR: #4284 grew execute-phase.md by 95 bytes (93,259 -> 93,354),
so this PR's +113 landed at 93,467 against the <= 93,400 margin in
tests/claude-orchestration.test.cjs.

Compact the close_phase_todos step this PR already edits -- drop the
PHASE_NUM indirection, fold the normaliser and the match guard, print
the closed list with one printf, shorten the step's prose -- without
touching the mechanism the #2415 guard pins (ADDED/REMOVED arrays, the
plain mv). 93,467 -> 93,349: 5 bytes under the base, so the PR no
longer spends any of next's 46 bytes of headroom.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MkU9ueBNHQzCpc3du5rKXm

* fix(#4208): classify absent index entries before staging a removal; restore removed entries exactly on rollback

Review of #4253 found three Majors with one root cause: the removal
side judged presence by fs.lstatSync alone, where the addition side
already reads `git ls-files -v` state. Absence from the worktree is not
removal:

- a submodule gitlink (mode 160000) whose directory was deleted by hand
  lists like a file and was `rm --cached` with no .gitmodules cleanup;
- a skip-worktree path is never materialised by a cone-mode sparse
  checkout, so a directory entry over a sparse-excluded tree dropped
  that whole tree from the index;
- an assume-unchanged path's worktree state is not something git
  itself consults;
- an intent-to-add entry (`git add -N`) renders as a plain cached entry
  on the empty blob, yet nothing tracked exists to remove and no
  rollback can restore the flag.

The index listing now carries each entry's `ls-files -v -s` tag, mode
and stage. Only a plain cached (H), stage-0, non-gitlink entry is a
removal candidate; every other state is left alone under a directory
entry (exactly like a present file) and fails closed when named
directly, with the state in the error. "Named directly" is decided on
RESOLVED paths, not strings -- realpath of the longest existing prefix
with the absent tail re-appended: an absolute path, `./x`, `--cwd`, or a
symlinked spelling of the tree (macOS `/var` ->
`/private/var`, where `process.cwd()` is the real path and the caller's
absolute path is not -- CI on this round's first push) all resolve to the
same entry, where a string compare against git's cwd-relative output
silently took the directory polarity (pre-push review, driven; the
symlink case is driven with an aliased fixture directory). The enumeration's domain is what
`ls-files -v -s` can emit for an index entry, stated at the classifier.

The third Major -- on an unborn HEAD a successful `rm --cached` was
never rolled back when a later entry failed -- is fixed differently
from the review's suggestion. Pushing the path into stagedPaths would
put it on the commit pathspec, which a root commit refuses ("pathspec
did not match", driven), and `git reset -- <path>` cannot restore an
entry with no HEAD anyway. Instead every index entry this call removes
is recorded (mode, blob) before the `rm` and put back with
`update-index --cacheinfo` on rollback. That also restores a
caller-pre-staged blob at a removed path exactly, where a reset would
have silently replaced it with HEAD's version. The rollback is
best-effort, as the addition-side reset already was, and the docs say
so.

Eight tests: gitlink under a directory entry, named directly, and named
by absolute path; skip-worktree both forms; intent-to-add both forms;
assume-unchanged named; unborn-HEAD partial failure restores the
removal; pre-staged blob survives the rollback.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MkU9ueBNHQzCpc3du5rKXm

* fix(#4208): drop the empty fenced block left dangling in cleanup.md's commit step

Review nit on #4253: inserting the --files-removed rationale between the
original bash block and its closing fence left an empty ```bash``` pair
before </step>. Harmless at runtime, a formatting artifact of this PR's
own diff; removed.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MkU9ueBNHQzCpc3du5rKXm

* fix(#4208): a boolean flag inside a commit path list no longer ends the list

Review minor on #4253: collectList stopped at the next `--` token, so a
positional wedged between a boolean flag and the next list flag
(`--files a --amend b --files-removed c`) was claimed by neither list
and silently dropped -- a regression in shape against the old
slice-to-end parse, which filtered `--` tokens and kept `b`. No current
call site interleaves that way, but the gap was real.

A list now runs to the next LIST flag (`--files` / `--files-removed`)
and skips boolean flags on the way, and a REPEATED list flag merges
its runs (`--files a --files b` -> [a, b]) as the slice-to-end parse
did -- a first cut stopped at the repeat and dropped `b`, the same
silent-drop shape one level over (pre-post comment audit). The only
change #4208 makes to parsing is that a second list flag can exist.
Tests: STATE.md wedged between --no-verify and --files-removed lands
in the commit; both runs of a repeated --files reach it.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MkU9ueBNHQzCpc3du5rKXm

* test(#4208): drive the reappearance window with a post-index-change hook

Review nit on #4253: the defensive re-check for a file recreated between
the absence test and `git rm --cached` -- the concurrent-session race
this PR's own changeset names -- had no test. git fires
post-index-change the moment `rm --cached` writes the index, so a hook
that copies the file back exactly then exercises the window
deterministically. The call reports staging_failed / "reappeared on
disk", commits nothing, and the rollback restores the removed entry.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MkU9ueBNHQzCpc3du5rKXm

* fix(#4208): restore a staged removal when the call records nothing

A `git rm --cached` that succeeds mutates the index whether or not a commit
follows. Only the staging-failure rollback put those entries back, so a call
that reached `nothing_to_commit` reported no state change while the removal sat
staged -- riding along on the caller's next commit.

The review named the unborn-HEAD, removal-only shape. Keying on `headExists`
would have fixed half of it: the guard also fires with a real HEAD when the
removed path is index-only (added, never committed), because `diff HEAD` reads
clean with the path absent on both sides. Both shapes now restore, at both
`nothing_to_commit` exits. The failure exits are deliberately left alone --
they report a failure rather than no-change, and the addition side leaves its
own staged paths there too.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* refactor(#4208): lift declared-removal staging out of the cmdCommit hotspot

`cmdCommit` was a critical-risk hotspot before this flag existed, and #4208 had
inlined another ~270 lines into it. `stageDeclaredRemovals(cwd, removedDeclared)`
now owns the index-state classification, path canonicalisation and entry
recording, returning the pathspec entries and the recorded removals its caller
merges.

Pure motion: no branch, message or probe changed. Only the two accumulators
became local names, and `restoreRemovedEntries` stays with the caller because
the exits that restore are the caller's. cmdCommit 888 -> 625 lines here; the
extracted helper is 277.

(Figures corrected after publication: an earlier version of this message said
854 -> 591 and claimed the result was below cmdCommit's pre-#4208 shape. Both
were wrong -- the count came from a faulty brace scanner, and `next`'s cmdCommit
is 581, so this is above it, not below.)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* test(#4208): property-test the two-list commit parser

RULESET.TESTS.property-based-testing asks a parser for at least one property
test asserting a domain invariant; `collectList` had only hand-picked examples,
one per shape a review round had already broken.

Hoisted it to module scope as `collectListFlagValues` and exported it in the
file's existing exported-for-tests convention -- a parser reachable only by
spawning the CLI can be tested one example at a time and no faster.

Three properties over generated argv: every positional lands in exactly the run
open at it whatever the flag order or count; no positional after the first list
flag is dropped or double-claimed; and with `--files-removed` absent the parse
equals the pre-#4208 slice-to-end parse. Controlled against two mutants -- a run
ending at any `--` token, and a repeated list flag that does not merge -- each
of which the properties catch.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* test(#4208): pin cleanup.md's archive commit to --files-removed

execute-phase.md's rewrite is pinned by the #2415 guard in this file;
cleanup.md's equivalent was not, so reverting its routing would have been
caught by nothing -- the mechanism's unit tests never read this file and pass
either way.

Asserts the two archived directories are under --files-removed and NOT under
--files (where a directory entry sweeps in a concurrent session's in-flight
writes), and that the destinations and STATE.md stay on the additive half.
Controlled by restoring the pre-#4208 sweep, which fails it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* test(#4208): pin that a symlink to a directory is one tracked path

Review of #4253 read the `lstatSync(...).isDirectory()` test as a
symlink-following defect. Driving it says the opposite: git tracks the link as
a single blob (mode 120000) and does not traverse it, so the tracked paths
"under" it live at the real directory and were never named by the caller.
Following the link would stage those -- the directory sweep #4208 exists to
remove -- while the named entry still sat present on disk.

Pinned rather than changed, with the premise driven in the test body. Swapping
`lstatSync` for `statSync` -- the prescription as written -- fails it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* chore(#4208): refresh the compact-content baseline for this PR's execute-phase edit

The base range added `tests/benchmark-compact-content.test.cjs` and a committed
token baseline over the compacted workflows. This PR edits
`gsd-core/workflows/execute-phase.md`, so the baseline drifts by +12 tokens on
that entry and on the aggregate.

Refreshed with `node scripts/benchmark-compact-content.cjs --write`; the diff is
those two entries and nothing else.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* fix(#4208): report a removal the call could not put back

Round review of this round found the restore itself unchecked: the helper
ignored `update-index`'s exit code, so a FAILED restore still reported
`nothing_to_commit` -- the same false "no state changed" the restore exists to
prevent, surviving one level down on the restore-failure path.

It now returns a boolean. The two no-change exits report `staging_failed`
naming the paths left staged; the staging-failure rollback still ignores it,
deliberately, because it is already reporting a failure and an unwritable index
is usually the failure being reported.

Driven with a post-index-change hook that makes the git dir unwritable the
moment `rm --cached` lands, so the restore cannot take its lock. Reverting both
guards fails the test.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* fix(#4208): disclose a removal the rollback could not restore

Round review refuted the reasoning behind leaving the rollback path's restore
unchecked. The claim was that this exit is already reporting a failure, so the
restore's result adds nothing. The counterexample is the ordinary case: the
reported failure is usually a DIFFERENT cause -- a contradictory declaration, a
reappeared path -- so a caller reading `failures` sees only that cause and
learns nothing about the removal still sitting in its index.

The rollback now appends a disclosure entry per un-restored removal, naming the
path. The reason and `file` still report the failure that caused the rollback;
the disclosure is additive.

Also moves the restore-failure test's chmod into a `finally`: `t.after` runs
AFTER the parent `afterEach`, so a throw before it left the fixture undeletable.

Both driven; reverting the disclosure fails the new test.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* fix(#4208): decide index state by observation, never by an exit code

The restore added two commits earlier keyed both its record decision and its
success verdict on git's exit code. An exit code answers "did the command
succeed", never "did the index change" -- execGit collapses a spawn timeout to
a non-zero exit, and a killed git can already have written the index. Round
review drove four failures from that one assumption, in both directions:

  - a failed `rm` still contributed an entry, so the rollback disclosed a
    removal that was never staged (stale index.lock);
  - a timed-out `rm` whose write DID land contributed none, so a real mutation
    was neither restored nor disclosed;
  - a timed-out `update-index` whose write landed reported failure, publishing
    a "could NOT be restored" disclosure that was false;
  - and the read-back that replaced it omitted `-z`, so core.quotePath rendered
    `café.md` as `"caf\303\251.md"` and an exactly-restored entry read as not
    restored -- the same quoting defect this PR already fixed for `preStaged`.

Everything now observes the index. A failed `rm` re-reads `ls-files -z` for the
path: gone means this call owns the removal and records it; still there means
nothing was staged; a probe that cannot answer becomes its own failure entry
rather than an assumption. The restore verifies the same way, comparing the
WHOLE entry (mode, blob, stage), because `--cacheinfo` restores all three and a
path-only test accepts an entry that came back as something else.

The verdict is three-valued -- `restored` / `not-restored` / `unverified` --
and the unverified wording says the restore could not be VERIFIED rather than
that it failed. The rm's own failure is pushed ahead of any probe diagnostic so
a timed-out removal keeps `timed_out: true` and its own message as the reported
cause.

Five regression cases, each negative-controlled against the shape it pins.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* fix(#4208): treat a declared removal path as a path, not a pathspec

An index path handed back to git is parsed as a PATHSPEC, and the removal side
handed several back. Three driven harms, all of them the sweep-in this flag
exists to remove, arriving through the operand rather than through a directory
entry:

  - a tracked file literally named `.planning/*.md` made `rm --cached` GLOB: it
    removed `peer.md` and `stays.md` too, only the declared entry was recorded,
    so the rollback restored one of three and the other two rode out as staged
    deletions the result disclosed nowhere;
  - the same name reached `git commit -- <paths>`, which globbed and committed
    an undeclared `M peer.md` alongside the declared removal;
  - and the intent-to-add probe (`diff --cached` over the path) matched a
    STAGED PEER instead of itself, so an `add -N` entry was misclassified as
    ordinary content, removed, and restored by `--cacheinfo` -- which cannot
    restore the intent flag. It came back as a real staged addition.

Every operand on this path is now `:(literal)`: the `rm`, both index probes,
the intent-to-add probe, the restore read-back, the entry-level `ls-files` /
`ls-tree`, and -- for the REMOVAL-derived entries only -- the downstream
`ls-files` / dry-run / `diff HEAD` / `commit` pathspec. `--files` entries keep
whatever pathspec behaviour they have today; that is not this change's to
alter. `:(literal)` still resolves a directory to its descendants (driven), so
the directory form is unchanged.

Closes what an earlier cut of this commit declared as a residual: a filename
beginning with `:` is now removable end to end, because the commit pathspec no
longer reinterprets it.

Also fixes a MINOR from the same review: cleanup.md's contract test checked the
destinations' position relative to `--files-removed` but never that `--files`
was present at all, so deleting the flag still passed.

Un-literalising the seven sites fails three of the new tests.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* fix(#4208): scope the rollback to the caller's own name space

Round review drove a rollback that destroyed the caller's own staged work. Two
causes, one of them pre-existing:

  - `git diff --cached` prints REPO-relative paths whatever the cwd, while
    `stagedPaths` holds the caller's cwd-relative names. In a project nested
    inside its repo (`<repo>/sub/.planning/...`) the two name spaces never
    intersect, so `preStaged` matched NOTHING, every path landed in `toUnstage`,
    and the reset unstaged a caller-staged deletion and modification that this
    call had never touched. `--relative` makes the two sets comparable, and is a
    no-op when the project IS the repo root. This governs the `--files` side too
    and predates this flag.
  - the rollback's `reset` was the last place a removal-derived name reached git
    as a bare pathspec; it takes `asPathspec` like every other site.

Driven on a nested fixture; dropping `--relative` fails the new test.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* test(#4208): gate six fixtures that Windows cannot construct

CI's `test (windows-latest, 24, shard 2/3)` went red on this round. Two
primitives the new fixtures rely on do not exist on Windows, both driven on a
real Windows host rather than inferred:

  - a filename containing `*` or `:` cannot be created at all (`IOException` /
    `FileNotFoundException`), which is four of the pathspec fixtures;
  - `chmod` cannot make a directory unwritable — a write into a ReadOnly
    directory succeeds — so the two restore-failure fixtures cannot drive the
    failure they exist to drive.

Each is skipped on win32 with its measured reason, in the repo's existing
`{ skip: process.platform === 'win32' ? '<reason>' : false }` form. The
behaviours they pin are platform-independent; only the fixtures are not.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* test(#4208): build git's index-syntax path with forward slashes

The remaining Windows red was mine, not the platform's: `git rev-parse :<path>`
takes a forward-slash path, and `path.join` yields backslashes there, so git
rejected it as an ambiguous argument. The hook in the same test already used
the slash form.

Not gated — the behaviour it pins is portable; only the argument was not.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016gyGdweAdAG6nFv9Jx32vj

* chore(#4208): refresh the compact-content baseline against the rebased base

`next` moved the `new-project` split and the aggregate under this PR's
execute-phase entry; regenerated with `scripts/benchmark-compact-content.cjs
--write` so the only leaves differing from the base's copy are the
execute-phase split and the aggregate it feeds.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FUcGM4FWeZV4cqvR7QBtJh

* chore(#4208): regenerate the macOS conformance tier for this PR's fixtures

`next` gained the macOS-specific conformance tier (#4593) after this branch
was cut. Its classifier (`scripts/gen-platform-conformance-tier.cjs --target
macos`) now selects `tests/commit-files-deletion.test.cjs` on the
`chmod-mode-bit` and `symlink-keyword` signals the PR's fixtures carry (the
chmod-driven failed-restore cases and the symlink-to-directory case).
Regenerated with `--target macos --write`; the platform tier was already in
sync. The file was modified, not added, which is why the added-files check
did not surface it.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FUcGM4FWeZV4cqvR7QBtJh

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: CI Rebase Check <ci@gsd-redux>
Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-11 12:26:55 -04:00
Tom Boucher
1e47560e34 feat(#4593): add a macOS-specific conformance tier, final phase of epic #4589 (#4607)
test-conformance's macos-latest leg (Phase 2, #4591) has been running the
same 546-file, Windows-oriented conformance-tier list as windows-latest --
built from signals like windows-shell-token/windows-env-var that have
nothing to do with macOS. Issue #4593 asked for macOS coverage sized to
its own evidence-backed surface (zsh dispatch, case-sensitivity, darwin-
specific behavior) instead.

Issue #4593 was filed before Phase 5 (#4603) existed and referenced
updating test-full's macOS legs -- that job is gone. Corrected the issue's
body before any code was touched: the "shrink from full replay" half of
the original ask was already done by Phase 5; what remained was narrowing
the still-Windows-oriented tier macOS was inheriting.

Two design assumptions were measured and rejected before accepting a
design (documented in docs/adr/4593-macos-conformance-tier-architecture.md):
- Reusing the general tier's signals minus its 3 Windows-specific
  categories barely narrows anything (546 -> 424, 78% retained) -- most
  files match multiple signals and only need one to survive exclusion.
- A standalone CRLF/autocrlf signal, despite the issue naming
  "CRLF-checkout behavior": even narrowed to /\bCRLF\b|autocrlf/i it hit
  143/930 files. Root cause: CRLF is primarily a Windows checkout concern
  in this codebase (ADR-1703 files it under DEFECT.WINDOWS-TEST-
  PORTABILITY), so the signal was really re-selecting Windows-relevant
  files already covered by the general tier, not narrowing macOS
  specifically.

Built 5 new, genuinely macOS-specific signals instead: darwin-literal
(darwin alone, not the general tier's win32-OR-darwin), zsh-dispatch,
case-sensitivity, plus chmod-mode-bit and symlink-keyword reused verbatim
from the general tier (genuinely Unix-relevant, not Windows-motivated).
Measured against the real tree: 196 of 930 eligible unit-suite files
(21%), versus the general tier's 546 (59%) -- a real, evidence-backed
narrowing.

scripts/gen-platform-conformance-tier.cjs gains classifyMacosContent/
classifyMacosTree/renderMacosGeneratedFile and a --target windows
(default, unchanged)/--target macos CLI flag, so the same generator
produces two independent, gated outputs rather than needing a second
script. New committed output: scripts/lib/macos-conformance-tier.
generated.cjs. .github/workflows/test.yml's test-conformance job: only
the macos-latest leg's file-list source changes; windows-latest is
byte-for-byte untouched. New shipped-file ripples handled proactively
(19 install-tree fixtures regenerated, bin/install.js registered).

An isolated code-review pass found one real defect: the ADR's per-
category count table had drifted by 1 (zsh-dispatch, case-sensitivity)
because the new test file's own fixture strings joined the tree it
classifies after the table was authored -- fixed, with the union total
(196, what CI actually gates on) confirmed unaffected. An isolated
security-review pass found no qualifying findings.

The ADR also records an explicit requirement for any future widening
proposal: check whether the motivating regression is already covered by
Phase 1's no-rendered-text-length-assert lint rule (#4590) before
re-proposing full macOS/Linux parity, since that is exactly what #4421's
root cause was (a rendered-text-length assertion, not a real behavioral
divergence).

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-10 14:37:15 -04:00
Tom Boucher
181c4c8659 chore(#4603): retire the test-full CI job (#4604)
* chore(#4603): retire the test-full CI job

Phase 2 (#4591) added test-conformance but left test-full (the pre-existing
full-suite Windows/macOS replay) running unchanged, gated on the same
full_matrix flag, downgraded only from a hard gate to a non-blocking
::warning:: -- framed as "a non-gating safety net for one release cycle."
No phase or issue ever retired it. Result: every full_matrix=true PR ran
10 OS-specific jobs (test-full's 6 + test-conformance's 4, purely
additive) instead of the original 6 -- the epic's own goal (reduce
runner-minutes) was measurably regressing, not improving, for the
majority of PRs.

This phase was missing from the original 4-phase epic decomposition; the
epic (#4589) has been amended to add it as Phase 5 (see its comment
thread), and this issue was filed as the tracked sub-issue.

Deletes the test-full job from .github/workflows/test.yml entirely, along
with every reference to it: required-tests' needs/FULL_TEST_RESULT
warning branch, ci-timeout-report.cjs's JOB_RULES entry,
ci-test-job-timeout-budget.test.cjs's LANE_COSTS/staticLanes/testFullRule
entries, ci-test-scope.test.cjs's test-full-specific tests (preserving
three unrelated tests that were nested in the same describe block, moved
under a renamed describe rather than deleted), and docs mentions.
test-conformance is now the sole gating signal for real-OS coverage.

Two separate defects found and fixed while auditing every test-full
reference:
- tests/ci-pr-mergeability.test.cjs's GATED['test.yml'] safety-critical
  array (jobs that must needs: the mergeability preflight) had test-full
  but was missing test-conformance entirely -- Phase 2 never added it.
  Verified the real workflow wiring was already correct (test-conformance
  does have needs: [changes, preflight]); this was a test-coverage gap,
  not a live defect. Fixed by swapping the array entry.
- docs/TESTING-SUITES.md's "## CI matrix" section was substantially stale
  independent of this phase (predating even #2952's coverage-gate split).
  Rewritten against the real, current job topology, verified directly
  against test.yml rather than trusted from memory.

An isolated code-review pass found and fixed two minor inaccuracies in the
rewritten docs table (two jobs' "Gated on" column didn't match their real
if: condition exactly). An isolated security-review pass found no
qualifying findings -- every compute-provisioning job already carries
needs: preflight directly, unaffected by this deletion.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(ci): isolate 7 more heavy test files from chunk-weight packing

`next`'s own push-triggered Tests run failed: `conformance test
(windows-latest, 24, shard 2/3)` chunk 3/6 was killed after 600019ms.
Root cause: state.test.cjs (weight 21.35, measured) was packed alongside
companions by run-tests.cjs's LPT chunk packer, the same failure mode
that previously hit codex-config.test.cjs (weight 17.87) twice and got a
dedicated fix (ISOLATED_HEAVY_FILES, #4497) -- but state.test.cjs was
never added to that set.

This is a direct, unintended consequence of epic #4589 Phase 2: the new
platform-conformance-tier job packs only ~546 files per shard (vs. the
~950-file full suite the packer used to balance against), so the same
absolute-weight outlier now represents a larger share of a smaller, more
homogeneous pool -- the LPT packer has fewer light files to pad around
it with. This was a real, foreseeable side effect of shrinking the
packing pool that nobody checked for when Phase 2 shipped.

A first attempt at this fix hand-picked 4 candidates by eyeballing a
truncated weight list and missed 3 heavier ones -- caught by an isolated
code-review pass (blocker: emitted-attribution.test.cjs at 66.2% of the
Windows chunk budget, install-minimal-hooks.test.cjs at 61.1%,
install.test.cjs at 47.1%, all above codex-config.test.cjs's own
44.7% -- the ratio that already proved dangerous twice). Corrected by
systematically computing weight/budget for every unit-suite file and
isolating everything at or above that same ratio: 7 files total, plus
the pre-existing codex-config.test.cjs (8 total).

Added a durable regression test (tests/run-tests-harness.test.cjs) that
re-derives this exact computation from the live tests/test-timings.json
on every run, so a future heavy file crossing this threshold fails the
test instead of silently reintroducing this failure -- not just a
one-time manual sweep.

Verified end-to-end: simulated the real 3-way windows shard split of the
actual conformance-tier file list with the real packing functions. Max
packable-chunk weight across all 3 shards is now 27.04 / 24.10 / 23.91
(shard 2 is the exact shard that failed on next), comfortably under the
40 budget -- versus 40+ and a 600s kill before this fix.

A second isolated code-review + security-review pass on the corrected
diff found nothing further.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-10 12:46:04 -04:00
Tom Boucher
bcd99696d3 chore(#4591): add platform-conformance-tier classifier + gate CI on it (#4598) 2026-09-10 08:36:13 -04:00
Tom Boucher
2cefa5a5ac enhance(#4139): Phase 8 — the toggle becomes discoverable, and the ledger closes (#4587)
* enhance(#4139): Phase 8 — the toggle becomes discoverable, and the ledger closes

ADR-4139's final phase. workflow.compact_content already defaulted to false
(Phase 1's buildNewProjectConfig hardcoded default), but nothing surfaced it:
/gsd-new-project never asked, and /gsd-settings/config had no toggle path for
an already-initialized project — config-set/config-get were the only route.

new-project.md gains a fourth question in the existing Round 2 AskUserQuestion
array (grouped with the other general-workflow-behavior toggles, not the
per-agent capability questions above it) and threads compact_content into the
config-new-project CLI JSON literal. settings.md mirrors the exact pattern
every other non-capability workflow.* key already follows: read_current bullet,
question block, update_config write, the safe-merge non-capability-keys list,
save_as_defaults, and the confirm summary table — seven edits, zero new
src/*.cts code, since Phase 1's merge logic is a generic passthrough. Its
success_criteria question-count ("24 settings") is bumped to 25 to match the
now-25-entry main AskUserQuestion batch.

settings-advanced.md deliberately does NOT get a duplicate question: no other
boolean toggle in this repo is asked in both settings.md and
settings-advanced.md, and there's no reason to start with this one.

docs/CONFIGURATION.md, docs/USER-GUIDE.md, and a new docs/features/4139-compact-
content.md fragment (regenerated into docs/FEATURES.md) document the toggle.

ADR-4139 itself: Status flips Proposed -> Accepted, the acceptance-criteria
section becomes a guard ledger — a 13-row table covering all 12 of #4139's
original checkboxes plus the shipped-content guard criterion, each with real
evidence (the merged PR that satisfied it, fetched via `gh issue view
--json closedByPullRequestsReferences` rather than asserted from phase
numbers) — and both "Open questions for the implementation phases" are
resolved rather than left dangling: discuss-phase was never converted to
spine+detail shape (verified: no detail/ subdir exists) — a genuine gap, not a
reasoned decline; the disjointness check is confirmed line-based by reading
compact-content-split.cjs's normalizeNonTrivialLines directly.

Orthogonal review (isolated Standards/Spec code-review + security-review
sub-agents) found and this fixes two real defects: the changeset fragment's
body didn't match CONTRIBUTING.md's single em-dash-sentence format (was
multi-sentence prose naming implementation file paths); and settings.md's own
success_criteria still said "24 settings" after the new question pushed the
main batch to 25. Also fixed, found by the Spec pass while confirming
commands/gsd/settings.md correctly needed no sync edit: that file and its
skills/gsd-settings/SKILL.md twin both still described "Interactive 5-question
prompt (model, research, plan_check, verifier, branching)", stale since long
before this phase (the batch has had far more than 5 questions for a while) —
replaced with a description that names the current set without hardcoding a
count that will drift again.

gsd-test (real run, sha 1da78fe2) caught a third real regression the local
sweep missed: new-project.md is a registered spine+detail split for Phase 4's
token-reduction benchmark (scripts/benchmark-compact-content.cjs), and the new
question's +167 tokens drifted the committed baseline
(tests/fixtures/compact-content-benchmark-baseline.json). The benchmark itself
is designed never to fail CI on drift, but the test asserting the COMMITTED
baseline is currently non-drifted correctly caught it. Regenerated via
`node scripts/benchmark-compact-content.cjs --write`; re-verified --check now
reports "up to date" and the test file passes 27/27.

Closes #4408.
Closes #4139.

Emitted-Drift-Ack-Growth: new-project.md — new 4th Round-2 AskUserQuestion entry (Compact Content, #4139) plus the config-new-project CLI JSON field and explanatory sentence; a new opt-in toggle needs new prose.
Emitted-Drift-Ack-Growth: settings.md — new workflow.compact_content read_current bullet, question block, update_config write, safe-merge key, save_as_defaults field, and confirm summary row (the same seven-edit pattern every other non-capability workflow.* toggle already follows), plus the 24->25 success_criteria count fix found in review.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#4408): backfill changeset PR number

pr:0 -> pr:4587 now that gh pr create has returned the real number.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-10 00:04:51 -04:00
Tom Boucher
9770258558 chore(#4590): add no-rendered-text-length-assert ESLint rule (#4595)
* test(#4590): add no-rendered-text-length-assert ESLint rule

Enforces ADR-456's typed-surface mandate for one specific bug shape: a test
assertion whose pass/fail depends on the length/substring content of a
template literal that interpolates an OS-derived path (os.tmpdir(),
os.homedir(), path.join/resolve/..., or a PATH_RETURNING_FNS resolver).
Because macOS's default tmpdir prefix is longer than Linux's, such an
assertion can pass on one runner and fail on another -- the defect class
behind #4421's incident (git show 4e75b836e9), already fixed there by
pinning to a typed field per ADR-456 Sec(c) before this rule existed to
catch a recurrence.

Two repo-wide sweeps against the real tests/ tree narrowed the rule to a
sound scope: an initial design that traced call arguments (to approximate
the historical incident's cross-file render-function shape) produced false
positives on ordinary fs.readFileSync(path.join(...)) + assert.match
patterns; a second design that matched any bare direct path-returning call
produced 45 false positives on path suffix/prefix/non-emptiness checks. The
shipped rule matches only a path-returning expression interpolated into a
template literal, directly or via one identifier hop -- disclosed in the
rule's own "Known boundaries" as not covering the literal cross-file
incident shape, which would require tracing into a callee's body.

Phase 1 of epic #4589 (CI test-matrix Linux-primary migration) -- Phase 2's
safety argument depends on this class of OS-dependent test assertion being
enforced going forward, not merely fixed once.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4590): address code-review findings on no-rendered-text-length-assert

Reletter the "Known boundaries" doc-comment list (a)-(e), fixing a gap left
by an earlier edit pass and every stale cross-reference to it. Collapse
isDirectPathTaint/isTaintedInterpolation's duplicated TemplateLiteral-walk
into one recursive relationship (isTaintedInterpolation now delegates a
nested-template-literal case back to isDirectPathTaint instead of
re-implementing the .some() traversal) -- behavior unchanged, confirmed by
re-running the repo-wide sweep (still zero false positives).

Found by the Standards-axis /code-review pass on this PR.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-09 21:55:51 -04:00
Tom Boucher
385ed619f1 fix(#4487): stamp broken-windows ledger entries with the resolved milestone (#4583)
* enhance(#4487): stamp windows-ledger entries with the resolved milestone

Broken-windows ledger entries (`.planning/WINDOWS.md`) carry `phase` as
a bare number. Phase numbers are unique only within one active phases/
directory -- `milestone complete` archives phases and frees their
numbers for reuse, so two milestones routinely produce entries sharing
the same phase value with nothing distinguishing them. Since
`/gsd-ship` blocks while any entry is open, an already-archived
milestone's open entries could silently block shipping the CURRENT
milestone, with no supported way to attribute which entry belonged to
which milestone short of manually cross-referencing MILESTONES.md
timestamps against decision IDs that happened to appear in description
prose.

Added an optional `milestone: string | null` field to WindowEntry,
stamped by `windows append` (cmdWindowsAppend, which already does file
I/O) from the workstream's resolved milestone version. Reused the
existing `readCurrentMilestoneVersion` (workstream-inventory.cts --
STATE.md `milestone:` frontmatter first, ROADMAP.md in-progress marker
as fallback) rather than writing a parallel implementation: exported it
via that module's existing `export = {...}` CJS-interop convention
(matching the `import ... = require(...)` pattern already used in
workstream.cts/init.cts). appendWindow itself stays pure -- it accepts
milestone as an optional input field and passes it through; only the
CLI-facing cmdWindowsAppend resolves it from disk.

Backward compatible by construction: validateEntryShape does NOT add
`milestone` to its required fields, so an existing ledger entry with no
milestone key at all parses without error and reads back as null --
exactly "recorded before this change," no migration needed. The
rendered markdown table is deliberately left unchanged (the issue's own
words: "the JSON is the source of truth"); adding a table column would
be a separate, larger change than adding an optional JSON field.

Two smaller gaps the issue itself flags as separable ("happy to split
them out") are explicitly NOT addressed here: no verb to amend an
entry's description, and the table/JSON drift-repair advice that can
destroy table-only edits on a parse failure.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4487): preserve absent-vs-null milestone through parse/render roundtrip

validateEntryShape stamped an explicit `milestone: null` onto every
entry lacking the key, so a pre-#4487 ledger entry gained permanent
JSON churn ("milestone": null) the first time ANY entry in the ledger
was touched -- breaking the pure parse/render roundtrip-identity
property test (render(parse(render(ledger))) must equal render(ledger))
and, in real usage, contaminating unrelated entries' diffs on every
append/waive/fixed of an old ledger.

Fixed by distinguishing "key genuinely absent" (undefined -- JSON.
stringify drops it, matching pre-#4487 behavior exactly) from "recorded
but unresolvable" (explicit null, the real signal appendWindow stamps
on brand-new entries). WindowEntry.milestone is now optional
(`milestone?: string | null`) so returning undefined type-checks.

Updated tests/broken-windows.test.cjs's roundtrip property generator to
exercise all three states (absent/null/string) -- its prior silence on
this field is exactly what let the regression through. Also corrected
the earlier backward-compatibility test's assertion: a pre-#4487 entry
reads as milestone: undefined, not null, and re-rendering it must not
introduce a milestone key at all.

Also ran npm run regen:derived: docs/features/broken-windows-ledger.md
(edited in an earlier commit) had never been propagated to its
generated docs/FEATURES.md projection, which is what was independently
failing tests/features-index-gate.test.cjs and, as a side effect of
staleness, tripping tests/fragment-single-edit-propagation.install.
test.cjs's second-source-surface check.

Manually verified via the compiled lib (500 fast-check iterations plus
direct legacy/new-entry roundtrip checks) before wiring the test file,
since this repo blocks local node --test.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4487): materialize milestone via conditional spread, not undefined assignment

An object literal property set to `milestone: undefined` is still an
OWN property -- `'milestone' in entry` reads true regardless of the
assigned value, only JSON.stringify treats undefined specially. My
prior commit's own new backward-compat test asserted `'milestone' in
entry === false` for a pre-#4487 entry and failed on exactly this.
Switched to conditionally spreading the key in only when the source
object actually had it, so a genuinely absent milestone is not
materialized at all -- matching both the `in` check and JSON
serialization. Re-verified via the compiled lib (500 fast-check
roundtrip iterations, plus the specific in/undefined/JSON assertions
the failing test makes) before re-running gsd-test.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* docs(#4487): backfill changeset pr number to 4583

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-09 15:37:50 -04:00
Tom Boucher
37b965c0d1 enhance(#4139): Phase 7 — the agent-skill seam picks the payload in code (#4553)
* enhance(#4139): Phase 7 — the agent-skill seam picks the payload in code

ADR-4139 stream 2. The non-Claude `#2454` persona fallback in cmdAgentSkills
(src/init.cts) now selects between a canonical agents/<name>.md and a
token-minimized agents/<name>.compact.md sibling based on
workflow.compact_content, resolved in code (a real function call with a real
exit code) rather than a prose config-get gate — the same precedent stream 1's
spine/detail split established for a load-bearing seam, applied here because
this seam already runs through TypeScript instead of an eager @-include.

A missing compact sibling falls back to the canonical persona and discloses
the fallback in the served payload itself (a leading HTML-comment provenance
line), so the Done-when contract — compact when on, canonical when off, never
silent or empty — holds even for an agent nobody has compacted yet.

Authored a .compact.md sibling for all 35 shipped agents (agents/gsd-*.md),
each an independent, complete rewrite (not an extraction — nothing is "moved"
the way spine/detail moves text) that preserves frontmatter, every @-include,
every output-format contract, and every guardrail verbatim while cutting
restatement and verbose framing. Verified mechanically: every pair registers
(a canonical sibling exists), every compact file is strictly smaller, and the
full @-include set matches canonical's — including which references are
standalone eager-load lines versus inline prose mentions, since demoting one
to inline changes what the host actually substitutes.

Traced the install path before writing any code (.gsd/phase/.../40-design.md):
stageAgentsForRuntimeWithConverter glob-copies every agents/*.md file with no
stem filtering under the default full profile, so the new .compact.md files
install for free with zero installer changes — matching issue #4407's stated
scope. A tiered agent profile that doesn't stage a compact sibling degrades
through the same fallback-with-provenance path already required for an
unauthored one, so no installer change is needed there either.

Extends tests/helpers/compact-content-variant.cjs with an AGENTS_ROOT export
(deliberately not folded into DEFAULT_VARIANT_ROOTS, since agent variants are
reached by a generic code construction rather than a literal path in prose,
and checkReachability's markdown-search shape has nothing to find there).
Reachability is instead proven behaviorally: tests/agent-skills.test.cjs's new
"#4407 compact payload selection" describe block spawns gsd_run agent-skills
against real compact/canonical fixture pairs and asserts on the served
payload, which can only pass if the seam genuinely wires through.

Fixed a pre-existing test whose agents/*.md glob incidentally matched the new
.compact.md siblings (tests/agent-skills.test.cjs's Skill-frontmatter drift
guard) and added the 35 new agents/*.compact.md entries to docs/INVENTORY.md's
roster, both real, unrelated-to-content defects the new files' mere existence
surfaced.

Regenerated: install-tree fixtures (19 runtimes now ship 35 more agent files
under the full profile), INVENTORY-MANIFEST.json, and the variant-swap token
benchmark baseline (npm run benchmark:compact-content-variants --write).

Closes #4407.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4407): apply orthogonal review findings from the compact-payload seam

Standards axis of /code-review: extracted readNonEmptyFileOrNull(filePath)
to collapse the duplicated read-and-empty-check shape between the compact
and canonical branches in cmdAgentSkills, and updated the adjacent comment
enumerating flat JSON extras to name agent_payload_variant alongside
source/degraded (added by the prior commit, comment left stale).

Security review and the Spec axis found no defects requiring a code change;
their non-blocking observations (a pre-existing, unmodified path-construction
pattern; the reasoned, documented substitution of a behavioral test for the
literal reachability check) are recorded in
.gsd/phase/enhance-4407-agent-skill-seam/60-review.json.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4407): repo-wide roster/cap fixes surfaced by shipping .compact.md agents

Root-caused via a real gsd-test run (93 failures) rather than guessing which
tests glob agents/ naively. Two classes of defect, both genuine:

1. Identity-roster confusion (11 files/areas): many tests and one production
   script derive "the set of GSD agents" from `readdirSync(agentsDir).filter(f
   => f.endsWith('.md'))`, which incidentally matched the new .compact.md
   variant siblings too — a compact file is a rendering of an EXISTING agent
   identity, not a new one. Fixed at the shared root
   (tests/helpers/agent-roster.cjs's listAgentFiles, which several tests
   already consolidated on) and at each independent glob that didn't use it:
   agent-size-budget.test.cjs (tier-cap lookup now strips the .compact suffix
   before checking XL/LARGE membership, so a compact file inherits its
   canonical sibling's tier instead of silently falling through to DEFAULT),
   agent-skills-bootstrap.test.cjs, check-contract-drift.test.cjs (the actual
   script, not just its test), codex-config.test.cjs (confirmed directly
   against generateCodexAgentToml that a compact role's derived sandbox_mode
   is byte-identical to its canonical sibling's before excluding it — not
   assumed), and copilot-install.test.cjs (two counts that legitimately DO
   need both files — an installed-file count and a full-conversion smoke test
   — fixed to expect 70, not stay pinned to 35).

   no-bare-gsd-tools-command-position.test.cjs needed the opposite kind of fix:
   two compact files reproduce descriptive prose already allowlisted at their
   canonical file's line number; added matching entries at the compact files'
   own line numbers rather than excluding them from the scan (a genuine bare
   gsd-tools command-position bug in a compact file would be as real a defect
   as in canonical).

2. A hard, non-ackable cap (found via emitted-attribution.test.cjs's real-tree
   run): six agents' compact renditions (gsd-debugger, gsd-executor,
   gsd-phase-researcher, gsd-plan-checker, gsd-planner, gsd-verifier) exceed
   the 32,768-byte NEW_FILE_CAP (ADR-1610) even after aggressive compaction —
   confirmed structural, not a compaction-quality gap: each is dominated by
   content this phase's own rules require verbatim (the ~2.6 KB gsd_run
   bootstrap preamble runtime-launcher-parity.test.cjs requires inlined in
   every agent that calls gsd_run, output-format contracts, guardrails).
   ADR-4139's prescribed remedy (spine + lazily-read parts) has no landing
   spot in cmdAgentSkills's single-file synchronous read. Removed these 6
   compact files rather than ship an over-cap file or invent a multi-part
   read mechanism out of scope for this phase; recorded by name with the
   reason in .gsd/phase/enhance-4407-agent-skill-seam/40-design.md and
   50-test-matrix.md, per #4407's own "or explicitly recorded as not worth
   covering" allowance. Their canonical personas are served correctly today
   via the fallback-with-disclosed-provenance path this phase's own Done-when
   #2 already requires — 29 of 35 agents now have a compact variant.

Also fixes an unrelated, genuinely pre-existing defect this gsd-test run
surfaced: gsd-core/workflows/execute-plan.md sat 21 bytes over its own
DEFAULT-tier hard cap (40,960 bytes) at the branch point, before any change in
this PR touched it — confirmed via `git show <merge-base>:...execute-plan.md
| wc -c`. Per CLAUDE.md's no-deferral rule, fixed inline rather than filed:
two meaning-preserving trims in the <success_criteria> block (a repeated
parenthetical replaced with a same-exception reference; one redundant
qualifier dropped) bring it to 40,940 bytes.

Regenerated install-tree fixtures, INVENTORY-MANIFEST.json, and the variant
benchmark baseline to reflect the 6 removed files. Docs/INVENTORY.md's 6
now-orphaned roster rows removed alongside them.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#4407): make .compact.md-aware roster checks resilient to partial coverage

Round 2 of the gsd-test-driven roster fixes: two checks assumed every agent
has a compact sibling (true for 29 of 35 after the NEW_FILE_CAP exception),
breaking once 6 stems legitimately have none.

- tests/agent-classification-parity.test.cjs: the INVENTORY.md parser was
  picking up the "### Compact Payload Variants" subsection's rows as
  phantom/uncounted entries in the primary/advanced/inventory-only
  classification this test validates — a compact row documents an existing
  agent's alternate rendition and never gets its own AGENTS.md heading, so it
  was never meant to participate in that classification. Excluded at the
  parser, not per-assertion.
- tests/copilot-install.test.cjs: the derived expected-file-list generator
  assumed every listAgentFiles() stem has a .compact.md source sibling;
  checks disk per stem now instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* docs(#4407): backfill changeset PR number

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-09 12:38:59 -04:00
Tom Boucher
5823d2ec7a docs(#4484): correct native-plugin-install's install-time-config parity claim (#4579)
* docs(#4484): correct native-plugin-install's install-time-config parity claim

The doc claimed the plugin path and the npm installer "differ in
namespace and lifecycle only." False: the native plugin path
(claude plugin install, marketplace discovery, and the skills-dir
zero-friction load) materializes the repository tree directly and never
runs GSD's install engine, so install-time config baked into generated
artifact files at install time never applies there -- confirmed for
agent_tools (#4238/#4032, reproduced live in #4484: 35/35 files granted
via npm install, 0/35 via plugin install, even after
`claude plugin update`). model_overrides is the same architectural class
(install-time-only logic on the npm-install call tree, per
src/install-model-override-resolver.cts) but hedged, not claimed
confirmed, matching the issue's own hedging.

Reporter explicitly frames this as a docs-only fix: the code behavior
(zero install step on the plugin path) is presumably intentional design;
the bug is the doc's incorrect parity claim, not the missing
functionality. No code changed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* docs(#4484): backfill changeset PR number

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-09 10:57:28 -04:00
Norman Yee
42c02a00c0 enhance(#3418): report real codebase drift instead of the whole repository (#4124)
* fix(#3418): write the codebase-drift baseline from code instead of agent prose

writeMappedCommit shipped correct and callerless, so no full map-codebase run ever wrote last_mapped_commit. The gate then read null and diffed HEAD against the empty tree, reporting every tracked file as newly added on every run.

Adds the stamp-codebase-map leaf verb and calls it from the map-codebase workflow and the execute-phase auto-remap path, replacing the prose instruction that asked the mapper agent to stamp its own output. An agent that concludes its work is already done skips a prose step silently, which is the failure the stamp exists to detect.

The gate now reports an absent or unresolvable baseline as skipped, with reason no-mapped-commit or unresolvable-mapped-commit, rather than as whole-repo drift. Files under .planning/ are excluded from the diff so the map's own commit does not read as seven new directories on the next run.

Emitted-Drift-Ack-Growth: map-codebase.md — adds the stamp_codebase_map step and its rationale, new workflow content this change requires

* test(#3418): cover the stamp writer and the absent-baseline gate

* docs(#3418): document how the drift baseline is written and skipped

* docs(#3418): note that a manual stamp reflows the map's whitespace

writeMappedCommit writes through platformWriteSync, which normalizes markdown whitespace on .md targets. Run in its workflow position the stamp lands on documents the mapper just wrote, so the normalization is folded into the same commit, but a hand-run stamp over an already-committed map reflows that map as a side effect. Reported on the issue thread.

* chore(#3418): add changeset fragment

Typed Changed to match the enhancement route the linked issue's label sets. The docs-required lint is satisfied by the ARCHITECTURE.md update already in this branch.

* fix(#3418): anchor the planning-artifact filter to the repo root

git diff --name-status prints repo-root-relative paths whatever the cwd, so computing the exclusion prefix against cwd yielded ".planning/" while git printed "sub/.planning/" and the filter silently matched nothing from a subdirectory.

* fix(#3418): derive the planning prefix from git, not from path arithmetic

Anchoring the exclusion prefix with path.relative() against `rev-parse --show-toplevel` broke on Windows, where os.tmpdir() hands back the 8.3 short form and git resolves the long one, so relative() produced a "../.." chain that matched nothing. `rev-parse --show-prefix` gives the cwd's root-relative prefix from the same producer as the diff paths, so the two sides cannot disagree.

* fix(#3418): take the planning lock around the codebase-map stamp

Stamping seven documents is seven frontmatter read-modify-writes, and two stampers can run at once: the full map-codebase run and the execute-phase auto-remap. Wrap the write loop in withPlanningLock, the same lock the other .planning/ writers take, so a concurrent pair cannot lose an update.

Also corrects the path-arithmetic comment, which read as if the Windows short-path hazard applied to the .planning half of the prefix. It applies to the rejected --show-toplevel alternative; both sides of the surviving relative() call are the same cwd string.

* fix(#3418): read HEAD and the map file list under the planning lock

The stamp resolved HEAD and listed the present codebase-map documents before it acquired the planning lock, so a stamper that then waited on the lock could write its now-stale sha over a newer one, or recreate a document deleted while it waited as a frontmatter-only stub. Both reads now happen inside the lock, matching the read-and-write-in-one-lock pattern config.cts and phase.cts already use. An empty --files value is refused as well instead of silently widening the stamp to all seven documents.

* fix(#3418): narrow the map stamp to the documents an update run refreshed

An "Update - only update specific documents" run reached the new stamp step with no --files narrowing, so the six documents the user did not select were stamped at HEAD and read as freshly mapped. The selection now threads through to --files, the same way the auto-remap path already does.

A bare --files (an unquoted empty shell variable drops the token) parsed to null, indistinguishable from an absent flag, so it skipped the empty-filter refusal and stamped all seven. Presence is now read off argv.

* fix(#3418): require the drift baseline to resolve to a commit, not any object

`git cat-file -t` exits 0 for a tree or blob sha and for a ref name, and `git diff <tree> HEAD` is valid, so an exit-code-only probe accepted a baseline that is not a commit and reported the resulting diff as real drift. Check the reported type instead of the exit code alone, which routes every non-commit stamp to the same `unresolvable-mapped-commit` skip.

---------

Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-09-09 05:08:20 +00:00