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Author SHA1 Message Date
0xdhx
c61dd49d95 enhance(#2255): blocking catastrophic-shrink guard for curated .planning/ writes (#2301)
* feat(#2255): blocking catastrophic-shrink guard for .planning writes

Adds hooks/gsd-write-guard.js, a PreToolUse hook that hard-blocks
(decision: 'block', exit 2) a whole-file Write collapsing a curated
.planning/ artifact (ROADMAP.md, .planning/milestones/*-ROADMAP.md,
STATE.md) below 40% of its on-disk line count. Files under 40 lines
are exempt; GSD_ALLOW_PLANNING_SHRINK=1 (named in the block message)
bypasses for legitimate milestone resets.

Fix 3 of #973 — the only defense independent of per-agent tool config.
Registered on the Claude plugin surface (hooks.json), settings-json
runtimes (runtime-hooks-surface.cts, self-contained pattern), Kimi
spec, and the OpenCode/Kilo plugin buses. Golden install fixtures and
INVENTORY regenerated; regression tests negative-controlled (16/16
RED with the hook absent, 16/16 GREEN with it present).

* chore(#2255): backfill changeset pr number to 2301

* enhance(#2255): address review — fail-closed reads, typed block output, registration, property test

Review fixes for trek-e's CHANGES_REQUESTED on PR #2301:

- Blocker 2: register gsd-write-guard.js in BUNDLED_GSD_HOOK_FILES
  (no-shipping-drift test).
- Blocker 3: update the always-on hook enumerations in ADR-766 and
  CONTEXT.md from six to seven.
- Major 4: fail CLOSED on non-ENOENT read errors — only a missing file
  (new-file Write) passes; EACCES/EISDIR/ELOOP/etc now block, with a
  typed readError field and the override still honored. Tested, with a
  negative control against the pre-fix hook.
- Major 5: fast-check property test for the SHRINK_RATIO/FLOOR_LINES
  budget contract (blocked ⟺ newLines < oldLines*SHRINK_RATIO above the
  floor; sub-floor always exempt), boundary examples pinned.
- Major 6: block output now carries typed oldLines/newLines/
  overrideEnvVar fields; tests assert on those instead of regexing the
  free-form reason string.
- Minor: CURATED_PATTERNS are case-insensitive (case-insensitive-FS
  bypass on macOS/Windows); limit+1 boundary tests added for both the
  floor and the ratio.

* enhance(#2255): engage the write guard on Kimi's native payload shape

The guard shipped with Claude-vocabulary checks (tool_name 'Write',
tool_input.file_path), which #2304 showed leaves a guard dormant on
Kimi: the [[hooks]] matcher is registered pre-translated but kimi-cli
forwards its native payload verbatim — tool_name 'WriteFile' (bare or
module-qualified) and tool_input.path per its tool schemas
(src/kimi_cli/tools/file/write.py). The guard matched, saw an unknown
name, and exited 0.

Apply the same per-guard normalization PR #2326 gives the three
sibling guards (name + field mapping, inlined — hook scripts stage as
standalone files), and write the block reason to stderr as well as
stdout JSON: Kimi feeds stderr, not stdout, back to the model on
exit 2, so a stdout-only reason blocks without telling the model why
or naming the documented override.

Regression tests pipe Kimi-shaped payloads (engage, qualified-name,
stderr-reason) plus exemption pins (StrReplaceFile stays out of scope
by design; non-curated paths pass) — verified red against the pre-fix
guard, green after.

* enhance(#2255): rebase onto next; regenerate golden-parity fixtures

* enhance(#2255): wire the escape hatch into complete-milestone's reorganize step

Review Blocker 1: the guard hard-blocked /gsd:complete-milestone's ROADMAP
reorganize — the tree's only legitimate milestone reset and the exact caller
GSD_ALLOW_PLANNING_SHRINK was built for. The reorganize step now performs the
rewrite through a shell write with the hatch set on the command (a hook
inherits the runtime env, so a bare Write cannot carry a per-step override),
and a binding test derives the env var name from the guard's typed output and
asserts (a) the workflow step sets it and (b) the guard passes the identical
catastrophic payload under it — so the next complete-milestone.md edit cannot
silently re-break the wiring.

* enhance(#2255): drop dead Edit-class mapping from normalizeKimiPayload

Review Major 1: StrReplaceFile -> 'Edit' and the old_string/new_string
reconstruction were unreachable-by-effect — the guard exits 0 for any
tool_name !== 'Write', so nothing ever read the fields they set, leaving
guaranteed-surviving mutants against the Stryker bar. The map now carries
only WriteFile -> 'Write'; the StrReplaceFile exemption test message states
the fall-through it actually exercises.

* enhance(#2255): review minors — American spellings; writeSync before exit(2)

Minor 1: normalised/normalise -> American house style. Minor 2: the two
block paths wrote stdout+stderr via async pipe writes then exit(2) —
async-on-Windows, unflushed at exit; fs.writeSync(1/2, ...) makes the block
payload durable.

* enhance(#2255): assert stderr equals the typed reason, not raw prose

Minor 3: the last raw-text match in the suite pinned override-name prose on
stderr. The contract is "stderr carries the reason Kimi feeds back" — now
asserted as stderr non-empty and byte-equal to the parsed stdout.reason.

* enhance(#2255): bind the write-guard's Kimi normalization into the parity test

Review Major 2: the guard's normalizeKimiPayload is a 4th inlined copy with
nothing binding it. This extends PR #2326's kimi-guard-normalization-parity
test (same path and helpers, authored as a superset so either merge order
resolves cleanly): sibling byte-parity is existence-gated zero-or-all —
trivially green until #2326 lands, full-strength after — and the write-guard
copy is bound semantically (map is the value-inverse of convertKimiToolName;
the Kimi name for Write must map, or the guard is dormant on Kimi; the
path -> file_path half must be present). Byte-parity is deliberately not
asserted for this copy: it legitimately omits the Edit-class mapping
(Major 1 — dead code in a Write-only guard).

* enhance(#2255): refresh golden-parity fixtures for revised guard + workflow

* chore(#2255): regenerate golden fixtures after rebase onto next

The committed fixture hashes were generated against a tree predating
next's latest 11 commits, which independently modified the same
install-parity surface. Rebased onto next and regenerated with
`npm run gen:golden`.

Verified: against upstream/next the regenerated fixtures differ by
exactly this PR's own entries -- hooks/gsd-write-guard.js (new),
hooks/managed-hooks-registry.cjs, plugins/gsd-core.js, and
gsd-core/workflows/complete-milestone.md. No unrelated drift.

* fix(#2255): regenerate workflow size baseline for complete-milestone

`complete-milestone.md` grew 31071 -> 32061 (+990) when the round-2
review fix bound GSD_ALLOW_PLANNING_SHRINK=1 into the reorganize step,
but tests/workflow-size-baseline.json was never regenerated. The
per-file workflow baseline test (issue #1074) failed on
ubuntu-latest/22 and both macOS shard 1/3 jobs.

The growth is justified: it is the escape-hatch binding requested in
review round 2 (the guard must not hard-block the tree's only
legitimate milestone reset), not incidental bloat.

Regenerated via `npm run size:baseline`; the diff is exactly the one
entry.

* chore(#2255): regenerate golden fixtures and size baseline after rebase onto next

* enhance(#2255): bind the shrink escape hatch mechanically — single-use sentinel the guard consumes

Round-5 M1: the per-step `GSD_ALLOW_PLANNING_SHRINK=1 tee` prefix was inert
(no PreToolUse hook exists on Bash in this family; the write succeeded by
dodging the guard, not by the override firing) and the protection was prose.
The hatch is now a transport code consults: complete-milestone's reorganize
step arms `.planning/.gsd-allow-shrink` with the target's path, keeps the
Write tool as the sanctioned path, and the guard — at the block point only —
verifies the sentinel is fresh (15 min) and names the pending target, then
CONSUMES it and allows that one write. Path-bound + single-use + freshness
keep it from becoming a standing unlock. The env var remains as the
interactive transport, where it can actually reach the hook.

Regression tests written first (negative control: 3 failed pre-fix): the
armed-sentinel Write passes and consumes; stale does not exempt; a token for
a different file neither exempts nor is consumed; the binding test now takes
the sentinel name from the guard's typed output (overrideSentinel), asserts
the step arms it, and asserts the step no longer routes the rewrite around
Write via a shell pipe.

Also in this commit, same file:
- m2: block emission is exception-safe — emitBlock() wraps both writeSync
  sites in their own try/catch that still exits 2, so an EPIPE can no longer
  convert fail-closed into the outer catch's fail-open.
- Header discloses the two reviewed design limits (cumulative sequential
  shrink; lexical match vs symlinked paths) per round-5 scoping.

* docs(#2255): document the sentinel transport across guard surfaces; changeset ends with the (#2255) parenthetical (m4)

USER-GUIDE bullet, INVENTORY row (en + ja/ko/pt/zh), the
runtime-hooks-surface registration comment, and the changeset now describe
both hatches — the single-use sentinel for workflow steps and the env var
for interactive use — instead of implying a per-step env can reach a hook.
The changeset's trailing `Resolves #2255.` prose becomes the `(#2255)`
parenthetical the repo's fragments use (round-5 m4).

* chore(#2255): regenerate derived families on the rebased tree (full sweep)

Full generator sweep after rebasing onto next @ the body-parser-patched
lockfile: build, gen-inventory-manifest, gen:golden, size:baseline. Every
regen delta verified to be either a PR-owned entry (gsd-write-guard.js,
complete-milestone.md, INVENTORY/USER-GUIDE) or exact convergence to next's
committed value for entries our arbitrary-side conflict resolution had left
stale (all 18 runtime fixtures checked mechanically).

* test(#2255): use helpers.cleanup for sentinel teardown, not raw fs.rmSync

The repo's local/no-raw-rmsync-in-tests rule exists for the Windows-EBUSY
retry budget; the sentinel disarm now rides it like every other teardown.

* chore(#2255): regenerate derived families after rebase onto next

Full sweep on the rebased tree (build -> gen-inventory-manifest ->
gen:golden -> size:baseline). Every delta is either a PR-owned entry
(hooks/gsd-write-guard.js, its registration surfaces
hooks/managed-hooks-registry.cjs and the two plugin buses,
gsd-core/workflows/complete-milestone.md) or exact convergence to
next's committed value across all 18 runtime fixtures.

* chore(#2255): regenerate derived families after rebase onto next @ a5180d96

Rebase onto current `next` (a5180d96) resolved 12 conflicting
golden-install-parity fixtures; all regenerated via the full generator
sweep (build, gen:golden, size:baseline) rather than a single generator.

`lint:generated-sync` reports every generated artifact in sync. All 45
differing fixture keys and the single workflow-size-baseline entry map
to files this PR actually touches; no foreign drift.

* fix(#2255): remove the stale unguarded reorganize_roadmap step (round-8 blocker)

complete-milestone.md carried a second ROADMAP-collapsing step,
`reorganize_roadmap`, distinct from the sentinel-armed
`reorganize_roadmap_and_delete_originals` this PR wired. It is a vestige
of the pre-archive-then-reorganize design: it sits BEFORE
archive_milestone, so executing it as written would collapse ROADMAP.md
before the archive snapshots the full phase detail — and its Write is
exactly the shape gsd-write-guard hard-blocks, with no hatch armed. The
file's own success criteria describe only one reorganize outcome
(Backlog-preserving, overwrite-in-place — the later step's properties),
and archive_milestone points forward to "the reorganize step".

Removed rather than wired, per the round-8 review's confirm-and-remove
option. A new binding test asserts the sentinel-armed step is the ONLY
reorganize step in the workflow, so an unguarded collapse step cannot be
silently reintroduced (negative-controlled: fails against the pre-fix
tree). Golden-parity fixtures and the size baseline regenerate for the
shrunk file; every changed fixture key is complete-milestone.md's own.

* test(#2255): document why the read-error injection is a path collision, not an fs monkeypatch

Round-8 nit: the non-ENOENT tests inject via a directory-at-target-path
collision instead of the repo's fs-method monkeypatch pattern. That is
deliberate, not drift — runHook exercises the hook as a spawnSync child
process, so an in-process fs.readFileSync patch (the pattern the cited
siblings use on require'd, in-process code) can never reach the code
under test. Record the reasoning at the injection site.

* chore(#2255): regenerate derived families after rebase onto next @ 0d08c320

Rebase onto current next (0d08c320) for the CONFLICTING/DIRTY state. All 32
conflicts were generated artifacts (19 golden-install-parity, 12 install-tree,
workflow-size-baseline); resolved arbitrarily and regenerated via a full
generator sweep (build, gen:golden, size:baseline, gen-inventory-manifest)
rather than hand-merged. No source conflicts.

Regen diff verified against the PR's changed-file set: 7 distinct differing
keys, all PR-owned (gsd-write-guard.js, managed-hooks-registry.cjs,
plugins/gsd-core.js, complete-milestone.md, and their .kimi mirrors).
lint:generated-sync clean.

* chore(#2255): regenerate derived families after rebase onto next @ 9138271b

Conflict set was 20 paths, every one a generated artifact, zero source
conflicts — resolved arbitrarily during the replay and regenerated here,
per the maintainer's round-9 recipe (never hand-merged).

Generator sweep (not just gen:golden): npm run build, gen:golden,
size:baseline, gen-inventory-manifest, gen:registry. INVENTORY-MANIFEST
came back byte-identical, so the merged value was already correct.

Regen diff verified == PR-touched entries: every differing leaf key
attributes to a file this PR changes (complete-milestone.md, the guard,
managed-hooks-registry.cjs, both plugin buses) — derived from the
changed-file set, not a feature-name filter.

* fix(#2255): port the #2595 Kimi-payload hardening the base landed for the sibling guards

Self-found via the round-10 base sweep: a8b40fa5 (#2547/PR #2595) hardened
gsd-prompt/read/worktree-path-guard's normalizeKimiPayload after this PR was
authored, and this guard carried all three pre-fix shapes:

- `path` now wins outright over a model-supplied `file_path` — kimi-cli's
  WriteFile schema carries no `file_path`, so a payload pairing a curated
  `path` with a spurious `file_path: ""` had the guard reading '' and
  exiting 0 while kimi-cli wrote to `path` (one-key bypass, no crash needed).
- null/primitive payloads pass through deliberately instead of throwing into
  the fail-open catch.
- the `file_path` read is typed (`typeof === 'string'`), closing the
  crash-to-allow on `[]`/`{}` — this is what the base-added
  kimi-guard-typed-payload-reads scan flags.

Negative-controlled: the shadowing payload exits 0 against the pre-fix guard
and 2 against this one.

* fix(#2255): round 9 Major 2 — stop printing the sentinel recipe in the agent-facing denial

The block message ended by telling the blocked agent exactly how to arm the
single-use sentinel — handing the #973 actor a mechanical self-authorization
in the moment it is blocked. The recipe is gone from the prose; the
corrective advice and the env override's name stay (the latter is a #2255
acceptance criterion, and a per-step env prefix cannot reach a hook anyway),
and the typed overrideSentinel field stays for the binding tests. The hatch
remains documented in USER-GUIDE.md and complete-milestone.md, where humans
and the workflow engine read.

* fix(#2255): round 9 Minors 1-2 — realpath-resolve the target before the curated match; disclose the /i Linux cost

Minor 1: a Write to a non-curated path that symlinks into a curated file was
not matched while writeFileSync followed the link — the target is now
realpath-resolved before the curated match (ENOENT keeps the lexical
resolution so new-file Writes still pass; any other realpath error falls
through to the read, which fails closed). Negative-controlled: the symlink
payload exits 0 against the pre-fix guard, 2 against this one. Test skips on
win32, where symlink creation needs privilege.

Minor 2: the header's design-limits block now names the unconditional /i
cost on case-sensitive Linux (a genuinely distinct .planning/roadmap.md is
also treated as curated) next to the stateless limit, and drops the closed
symlink limit.

* test(#2255): round 9 Minors 3-4 — CRLF counting pin + a passing Write leaves a fresh sentinel unburned

Minor 3: countLines' split('\n') is CRLF-safe for a count (the \r rides
along), confirmed by trace in the review — this pins it against this repo's
recurring CRLF regressions, on both sides of the compare and at the 40%
boundary.

Minor 4: consumeSentinelFor runs only after the ratio check would block, so
a within-tolerance Write never burns the workflow's token — true by
construction, previously un-asserted.

* fix(#2255): round 9 Major 3 — correct the stale env-var line in archive_milestone's summary

complete-milestone.md's "After archival" bullet still said the reorganize
happens "under GSD_ALLOW_PLANNING_SHRINK=1" — the wording from the round-2
design this PR's own history rejected in round 5 (a per-step env var cannot
reach a hook; setting it in a Bash step silently does nothing). It now points
at the sentinel mechanics the reorganize step actually documents, matching
that step and USER-GUIDE.md.

* docs(#2255): round 9 Major 1 — user-facing docs state the stateless per-Write limit

The changeset and USER-GUIDE described the guard as covering "catastrophically
shrinks" with no caveat, while the stateless design was disclosed only in the
hook header — an operator reading the shipped docs would conclude iterative
erosion is covered. Both surfaces now state the per-Write comparison and the
erosion non-goal explicitly, in line with what the guard does.

* fix(#2255): round 10 Blocker 1 — arm the hatch in the roadmapper's curated writes

gsd-roadmapper Step 7 Writes both .planning/ROADMAP.md and .planning/STATE.md
wholesale, and /gsd:new-milestone spawns it against the OUTGOING milestone's
files. new-milestone's `phases.clear` archives phase DIRECTORIES, never
ROADMAP.md, so nothing compacts it first, and no ordering rule forces
/gsd:complete-milestone to run before /gsd:new-milestone.

Measured against the shipped hook at the #973 file size (292 lines): a new
4-phase roadmap lands at 18.2% and an 8-phase one at 31.8% — both blocked; only
a 12-phase replacement (45.5%) clears. So the collapse is reachable on a
first-party flow, which is the failure mode #2255 para 4 says the guard must not
have.

Arms the single-use sentinel immediately before each Write, one per target
(the token is path-bound and single-use, so one arming cannot cover both), and
gates each arming on `[ -f ]` so the /gsd:new-project path — where the guard
already exempts via ENOENT — strands no unconsumed token.

Binding test derives the sentinel name from the guard's own typed output, so a
rename on either side fails the suite instead of silently unwiring the hatch.
Negative-controlled: 2 assertions fail against the pre-fix roadmapper.

* docs(#2255): round 10 Major 2 — scope the claim to the guarantee that ships

The sentinel is a plain file, so an agent that would reason past an advisory
can arm one with a single Bash call it is already permitted to make. The
"only defense independent of per-agent tool config" framing outran that, and
the changeset was on its way into CHANGELOG.md.

Retitles the claim on all three surfaces (changeset, guard header, USER-GUIDE)
to what the guard actually delivers: it blocks accidental and single-shot
collapse and is not a defense against a determined agent; what it converts is
"ignore a sentence" into "take one deliberate, path-bound, single-use,
auditable action".

Pinned by test on the DURABLE surfaces only — the guard header and USER-GUIDE.
The changeset fragment is deliberately not pinned: it is consumed at release,
so a test reading it would start failing the moment the release lands. The
bound-statement assertion normalizes comment markers and whitespace first, so
it pins the claim rather than the paragraph's line wrapping.

Negative-controlled: both assertions fail against the pre-fix surfaces.

* test(#2255): acknowledge the roadmapper growth from the round 10 Blocker 1 wiring

The emitted-attribution gate (#2719/#2767) flags gsd-roadmapper.md growing 1130
bytes without an acknowledgment. The growth is the Blocker 1 sentinel wiring
plus the rationale a future editor needs to keep it, so it gets an ack fragment
rather than a silencing regen — the gate's own message is explicit that there is
nothing left to regenerate.

Fragment is PR-scoped (2301-…) per the gate's naming instruction, and uses the
plain-string reason form the shipped fragments use.

Verified against the TRUE upstream tip, not the fork's origin/next: a stale
origin made this same gate report unrelated phantom drift (1 emitted path + 6
grown files + 5 stale acks) that vanishes when GSD_EMITTED_BASE is pinned.

* test(#2255): renumber the roadmapper PROSE_ALLOWLIST pin after the Step 7 wiring

CI red on shard 2/3, all four platforms. The #2751 gate keys PROSE_ALLOWLIST on
{file, line}; the Blocker 1 wiring added 18 lines above the allowlisted
parenthetical in agents/gsd-roadmapper.md, moving it 624 -> 642. Both halves of
the gate then fired: the moved line reads as a new offender, and the stale
entry no longer matches anything.

Line content at 642 is byte-identical to what the entry describes — a
descriptive "e.g." naming SDK queries a user could run — so this is a
renumber, not a re-classification.

Swept the defect class rather than the instance: agents/gsd-roadmapper.md is
the only line-pinned reference to any file this round changed.

Negative-controlled: both assertions fail against the un-renumbered allowlist.

---------

Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
2026-08-01 21:19:49 -04:00
Tom Boucher
97e9fd50bd fix(#2752): make tool_input.path authoritative over model-controlled file_path in gsd-phase-boundary.sh (#2860)
* test(#2752): path is authoritative over model-controlled file_path in phase-boundary hook

Rewrite the #2304 precedence test (which pinned the buggy file_path-wins
behavior with an impossible no-tool_name {file_path,path} payload) to assert
the correct precedence with realistic Kimi-shaped payloads: a real .planning/
write with a decoy file_path must still fire the reminder (suppression repro),
and a write elsewhere with a decoy .planning/ file_path must NOT fabricate one
(fabrication repro). Update the parity vocabulary alarm to the new expression.

* fix(#2752): make tool_input.path authoritative over model-controlled file_path in gsd-phase-boundary.sh

The hook consulted file_path first, path second. kimi-cli executes on path and
sends path only; file_path on a Kimi payload is always model-supplied. So a
model-supplied decoy file_path could suppress the reminder for a real .planning/
write or fabricate one for a file never touched. Flip the precedence so path is
authoritative and file_path is the fallback (Claude Code emits file_path and no
path, so the fallback must remain). Mirrors the #2595 JS-guard fix.

* chore(#2752): changeset fragment

* chore(#2752): clarify comment/changeset — JS guards use upstream normalization, shell hook applies precedence directly (review minor 1)

* chore(#2752): backfill changeset PR number (2860)

---------

Co-authored-by: Test <test@example.com>
2026-07-30 12:32:00 -04:00
Tom Boucher
7e905aa137 feat(#2505): Phase 0 — Kimi PreToolUse guard vocabulary normalization (precondition; carries PR #2326 forward) (#2518)
* fix(#2304): normalize Kimi tool vocabulary in PreToolUse guard payload checks

The Kimi [[hooks]] registrations translate the matcher to Kimi's tool
vocabulary (WriteFile|StrReplaceFile) but the guard scripts early-exit
unless the payload's tool_name is a Claude name (Write/Edit/MultiEdit),
so every guard was dormant on Kimi: the matcher fired, the script saw
WriteFile, and exit(0)'d.

Normalize the payload's tool_name at the top of each guard
(WriteFile -> Write, StrReplaceFile -> Edit; bare or module-qualified
kimi_cli.tools.file:* forms) before the check. Inlined per guard rather
than a hooks/lib/ helper because hook scripts are staged as standalone
files on every hook surface, and a sibling require is a staging
dependency that can fail silently.

Regression tests pipe Kimi-vocabulary payloads at each guard and assert
it engages (typed fields: exit status, decision, hookSpecificOutput) —
verified red against the pre-fix scripts, green after.

* fix(#2304): normalize Kimi tool_input fields and route block reasons to stderr

Cross-AI review of the initial fix, verified against kimi-cli source,
found the tool_name normalization alone leaves the guards dormant on a
real Kimi runtime: kimi-cli forwards tool_input verbatim
(src/kimi_cli/hooks/events.py), and its tool schemas
(src/kimi_cli/tools/file/{write,replace}.py) use path/content and
edit.old/edit.new (single Edit or list) — not Claude's
file_path/old_string/new_string. The guards read file_path, got '',
and exited 0 past the now-open tool_name gate.

Extend the per-guard normalization to the payload fields
(path -> file_path, edit -> old_string/new_string with list flattening),
and write the worktree guard's block reason to stderr as well as the
stdout JSON — Kimi feeds stderr, not stdout, back to the model on
exit 2 (docs/en/customization/hooks.md exit-code table).

Regression tests rewritten to Kimi's actual payload shapes (plus an
edit-list case and a stderr-reason assertion) — verified red against
the name-only fix, green after.

* fix(#2304): join all edit[] entries into old_string, matching new_string

Review nit on #2326: old_string took only edits[0].old while new_string
joined the whole list. Symmetric join removes the latent trap for any
future consumer sizing before/after content (e.g. the #2255 write guard).

* fix(#2304): normalize Kimi ReadFile vocabulary in read-injection scanner

Review Major 2 on #2326: gsd-read-injection-scanner.js had the identical
dormancy — its Kimi matcher fires on 'ReadFile' but the SCANNED_TOOLS
check only knew 'Read', so injected content in read files was never
flagged on Kimi installs.

Folds the same inlined normalization block into the scanner and extends
the shared KIMI_TOOL_NAMES map with ReadFile:'Read' in all four copies so
they stay byte-identical. Harmless in the three write guards: a
normalized 'Read' falls out of their Write/Edit allowlist exactly as the
unmapped name did. Field mapping verified against kimi-cli upstream
(src/kimi_cli/tools/file/read.py Params.path); the existing
path->file_path copy covers the scanner's file_path read.

* test(#2304): parity test binding the four inlined Kimi normalization copies

Review Major 1 on #2326: KIMI_TOOL_NAMES + normalizeKimiPayload is
deliberately inlined in four hook scripts (staging-dependency rationale,
unchanged), with the inverse table in bin/install.js — five
hand-maintained surfaces and nothing binding them.

Static binding, zero runtime coupling:
- the four inlined blocks must be byte-identical;
- each guard-map entry must be the value-inverse of
  convertKimiToolName() for its Claude name;
- every guard-relevant Claude tool (Write/Edit/MultiEdit/Read) must have
  a reverse entry — a vocabulary rename or extension that updates the
  installer without updating the guards now fails in CI instead of
  leaving a guard silently dormant (the #2304 recurrence door).

Negative-controlled: diverging one copy or dropping a map entry fails
the suite against the fixed code.

* test(#2304): regenerate golden parity fixtures for guard hook changes

CI red on #2326: all 10 golden-parity failures were the staged guard
hooks drifting from their fixtures. Regenerated with npm run gen:golden
(after npm run build) under throwaway HOME/CLAUDE_CONFIG_DIR; diff
verified to change exactly the four PR-touched guard entries per
surface, nothing else.

* test(#2304): regression tests for Kimi ReadFile engaging the scanner

Mirrors the per-guard Kimi vocabulary tests the PR added for the three
write guards: bare and module-qualified ReadFile produce the advisory,
path exclusions still apply post-normalization, unknown Kimi names stay
fail-open. Negative-controlled against the pre-fold scanner (the two
positive cases fail there; exclusion/fall-through correctly pass on
both sides).

* fix(#2304): normalize Kimi Shell vocabulary in workflow guard

Withdraws the disclosed out-of-scope split: verification showed the
Bash->Shell case needs NO different mapping — kimi-cli's Shell.Params
names its field `command` (src/kimi_cli/tools/shell/__init__.py), same
as Claude's Bash — and the guard's write branch (Write/Edit/MultiEdit
allowlist) was ALSO dormant on Kimi under its Shell|WriteFile|
StrReplaceFile matcher. Same defect class as the other four hooks.

Folds the identical inlined block into gsd-workflow-guard.js and
extends the shared map with Shell:'Bash' in all five copies (harmless
outside the workflow guard: a normalized Bash falls out of the other
guards' checks as before). Parity test now binds five copies and adds
Bash to the dormancy alarm. New workflow-guard test file exercises the
observable block (force-add on a worktree-agent branch): Shell bare and
module-qualified block with WORKTREE_AGENT_FORCE_ADD_FORBIDDEN, benign
Shell passes, Claude Bash unchanged — negative-controlled against the
pre-fold guard (the two Kimi cases fail there). Golden parity fixtures
regenerated; diff verified to change exactly the five guard entries per
surface.

* fix(#2304): map Kimi tool_output and route workflow-guard block to stderr

Third-party review (cross-AI verifier) caught two gaps in the revision:

1. Kimi PostToolUse events carry `tool_output`, not `tool_response`
   (kimi-cli src/kimi_cli/hooks/events.py post_tool_use()), so the
   read-injection scanner — which reads data.tool_response — was STILL
   dormant on real Kimi payloads; the earlier tests passed because they
   sent Claude-shaped payloads. The shared normalization block now maps
   tool_output -> tool_response (inert in PreToolUse guards, where the
   field is absent), and the scanner's Kimi tests send the real shape.

2. The workflow guard's force-add block wrote its reason to stdout only.
   Kimi's exit-2 protocol feeds stderr back to the model — the exact
   fix this PR already applied to the other blocking guard — so the
   newly-awakened block would have been a silent denial. Reason now
   also routed to stderr, asserted in the test.

Also: the scanner's "unknown name" test now uses a genuinely unmapped
name (FetchURL) — Shell stopped qualifying when it entered the map —
and the workflow guard's write branch (WriteFile advisory,
StrReplaceFile .planning pass) gains behavioral coverage. All five
copies stay byte-identical (parity test green); golden fixtures
regenerated, diff verified to the five guard entries per surface.
Negative-controlled: 3 new assertions fail against the pre-fix hooks.

* docs(#2304): update changeset to cover the full five-guard fix

Review round 2 (2026-07-18) flagged the changeset as stale: it was
written for the first commit and still described only the three guards
named in the issue. The shipped diff grew to five guards plus two
payload dimensions the original body never mentioned. The body now
names gsd-read-injection-scanner and gsd-workflow-guard, the ReadFile
and Shell vocabulary entries, the tool_output -> tool_response mapping,
and the workflow guard's stderr block-reason routing.

* test(#2304): regenerate kilo golden fixture after #2305 landed on next

The branch's fixture sweep predates 50efae13 (fix(#2305), PR #2327),
which made Kilo ship the five shared guard hooks. Rebased onto next and
re-ran the full generator sweep (gen:golden, size:baseline, and the
four registry/contract generators); the only delta across all of them
is kilo.json's five guard-hook hashes, matching this PR's hook edits.

* fix(#2304): fold Kimi normalization into the two shell hooks

The 2026-07-19 review found the last two guards with the #2304 dormancy:

- hooks/gsd-graphify-update.sh gated on tool_name == "Bash" but is
  registered on Kimi with matcher 'Shell' — Gate 1 never matched and the
  auto-rebuild was silently dormant. kimi-cli's Shell.Params names its
  field `command` (src/kimi_cli/tools/shell/__init__.py), same as Claude
  Bash, so only the name needs mapping: strip the module-path prefix,
  map Shell -> Bash.
- hooks/gsd-phase-boundary.sh read only tool_input.file_path, but Kimi's
  file tools name the field `path` (src/kimi_cli/tools/file/write.py +
  replace.py) — the hook read '' and .planning/ writes went undetected.
  Falls back to tool_input.path when file_path is absent, mirroring
  normalizeKimiPayload's precedence in the JS guards.

The normalization is reimplemented in shell — a byte-identity assertion
cannot span the JS<->shell boundary, so the parity test gains a
shell-guard vocabulary block that pins both scripts' mapping facts to
convertKimiToolName's live vocabulary instead of faking a byte binding.
Behavior is covered by negative-controlled tests beside each hook's
existing suite (verified red against the pre-fix scripts): Kimi Shell
dispatch (bare + module-qualified) with a WriteFile negative control in
graphify-auto-update.slow.test.cjs, and Kimi path detection, file_path
precedence, and a non-.planning negative control in hooks-opt-in.test.cjs.

Changeset updated to name all seven guards; golden install-parity
fixtures regenerated (diff is exactly the two hook entries per runtime;
size baselines unchanged).

* fix(#2304): use a Map for KIMI_TOOL_NAMES so prototype keys cannot pass the guard fall-through

A bare bracket lookup on an object literal resolves 'constructor',
'__proto__', 'toString', 'valueOf' and 'hasOwnProperty' through
Object.prototype to truthy functions/objects, so `if (!mapped)` failed
to short-circuit and data.tool_name was assigned a non-string. Map.get
returns undefined for those keys — the same shape the repo already uses
in canonicalizeRuntimeName (src/runtime-name-policy.cts). Applied
identically to all five inlined copies (review M1, PR #2326).

No new bypass class: unrecognized strings already fail open by design;
this fixes the lookup being wrong, not the posture.

* test(#2304): enumerate normalized guards by scanning hooks/, not a hardcoded list

The parity test's file list was a literal five-entry array — a sixth guard
with its own copy-pasted normalization block would be silently uncovered,
the exact divergence mode the test exists to prevent (review M2). Now the
list is a scan of hooks/*.js for the KIMI_TOOL_NAMES marker, with a floor
assertion so a scan that finds nothing fails instead of passing vacuously.
Also parses the Map declaration introduced by the M1 fix, and carries the
allow-test-rule annotation documenting the source-text scanning (review m4).

* test(#2304): parse hook JSON output instead of substring-matching raw stdout

workflow-guard.test.cjs asserted on unparsed stdout while read-guard.test.cjs
in the same PR parses the JSON envelope first — match the better pattern at
all four assertion sites (review m5).

* test(#2304): regenerate golden parity fixtures after Map conversion in the five guards

* docs(#2304): reset changeset pr:0 placeholder for Phase 0 PR (#2507)

The closed PR #2326's changeset carried pr:2326. Phase 0 of epic #2505
re-lands this fix on a fresh branch; the pr: field will be backfilled
to the real Phase 0 PR number immediately after gh pr create returns.

* docs(changeset): backfill PR #2518 for Phase 0 (#2507)

---------

Co-authored-by: 0xdhx <darkhawkx@gmail.com>
2026-07-21 23:42:02 -04:00