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Author SHA1 Message Date
Tom Boucher
0408276791 chore(#2797): federate reviewer config keys off the central schema (#2841)
* chore(#2797): federate reviewer config keys off the central schema

Phase 4 of epic #2782 (ADR-2782 D9, config half). Runs AFTER 5a per the
ADR's swap amendment: a federated config slice lives inside a
capabilities/<id>/capability.json, and three of the five key families had
no capability directory until 5a created them.

Four key families move to the lanes that use them; the central-schema
removal and the federated addition land in this one commit because the
exclusivity invariant fails the build on a key present in both.
review.max_prompt_tokens, review.default_reviewers and
review.reviewer_instances describe policy ACROSS lanes and stay central.

Two things the issue did not name, both found while building it:

1. THE EXCLUSIVITY GATE WAS BLIND TO PATTERNS. It compared federated keys
   against manifest.validKeys only, and two of the four families
   (review.models.<slug>, review.max_prompt_tokens_per_reviewer.<slug>)
   were pattern-backed. That is not cosmetic: isCentralConfigKey consults
   those patterns and mergeFederatedConfig skips every key for which it
   returns true, so declaring a slice while the pattern survived would
   have shipped an INERT slice behind a green gate — the exact
   half-migrated shape the invariant exists to prevent. The gate now
   loads the patterns from the same manifest the runtime reads.

2. AN UNSET PER-LANE BUDGET NOW RESOLVES TO 0, NOT NOT-FOUND, because a
   federated key always resolves to its declared default. The three
   fallback guards in review.md checked only empty-or-"null", so a user
   who set the GLOBAL review.max_prompt_tokens would have silently lost
   trimming on the HTTP lanes. The guards now treat 0 as unset.

D9 says review.models.<slug> is owned by "the lane whose slug it names".
That is false for one lane: the shipped key is review.models.agy while
the slug is antigravity. Ownership follows the lane; the key name is
preserved, because renaming would break every config that sets it.

Existing tests updated rather than left asserting the old world:
config-get on a cleared federated key yields empty instead of
not-found (what #2046 actually protects — never persisting the literal
"null" — is unchanged and still asserted); the config-schema dynamic
pattern representative moves to reviewer_instances; the
prototype-pollution guard case moves to a surviving dynamic prefix so
alert #26 keeps its coverage, with a new case asserting the old key is
now rejected earlier; and Phase 2's harvest-widening inertness assertion
becomes an ownership assertion, since Phase 4 is what consumes it.

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

* fix(#2797): use a -1 sentinel so an explicit per-lane budget of 0 survives

A federated config key always resolves to its declared default, so an
unset per-lane prompt budget needed a value the workflow could treat as
'not configured'. The first cut used 0 — which is wrong: 0 is already a
LEGITIMATE per-lane budget meaning 'do not trim this lane' (the
early-return guard in prepare_trimmed_prompt_for_reviewer). Treating it
as unset would have silently switched a user who deliberately disabled
trimming for one lane onto the global budget.

The sentinel is now -1, which is not a valid token budget, so all three
states stay distinguishable: unset falls back to global, an explicit 0
disables trimming for that lane, and an explicit N is used. Locked by
three CLI round-trip tests.

Surfaced by the isolated security reviewer before it crashed mid-run;
verified independently against the shipped trim guard rather than taken
on trust.

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

* fix(#2797): update central-registration assertions and stay under the review.md cap

The remote runner caught both; my local sweep missed the files.

1. tests/plan-review-convergence.test.cjs asserted the three local-server
   host keys are in VALID_CONFIG_KEYS. They are federated to their lane
   capabilities now, and the exclusivity invariant forbids a key living
   in both places. What #2306-local actually protects is that config-set
   ACCEPTS them, so that is what is asserted — via isValidConfigKey, the
   predicate config-set itself uses, which spans central and federated.
   A second assertion pins federated ownership, so a silent reversion
   back to the central schema fails too.

2. review.md exceeded the LARGE tier hard cap (62583 > 61440). That cap
   is a red line, not a budget to raise. The three per-lane budget guard
   comments were near-identical; condensed to one terse line each. 61371
   bytes, 69 to spare. Real extraction to workflows/review/modes/ is
   Phase 5b/6 work.

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

* fix(#2797): fail closed on a broken config-schema manifest; reconcile stale docs

Isolated security review findings.

MAJOR — loadCentralConfigPatterns failed OPEN. It swallowed a JSON parse
error and returned [], while its sibling loadCentralConfigKeys, reading
the SAME file, writes to stderr and throws ExitError(1) on that identical
failure class. Fail-open here defeats the gate this function exists to
feed: with zero patterns, validateCrossCapability's pattern-collision
check silently passes and an inert federated slice ships green. It was
masked in the one production call site only because loadCentralConfigKeys
runs first against the same path — a coincidence of ordering, not a
guarantee, and this function is exported and called standalone. The two
now share a contract: ENOENT is the legitimate absent case, anything else
throws loudly. A single unparseable PATTERN is still skipped, which
degrades to "checked less" rather than blocking every build. The branch
had zero coverage; it now has two tests (malformed JSON, EISDIR).

MINOR — docs/CONFIGURATION.md still listed review.models.qwen and
review.models.cursor as settable, ~770 lines below this PR's own new
Ownership section. Those lanes take no model flag, so they declare no
model key and config-set now rejects them. Rows removed; the missing
review.models.agy row added; the per-reviewer budget row corrected to
name only the lanes that own a budget key, and to document that a
per-lane 0 disables trimming for that lane.

Also fixes a shadowed "raw" binding introduced by the fail-closed change,
which made the generator unrequirable — caught immediately by its own
--check.

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

* chore(#2797): backfill changeset pr number to 2841

* fix(#2452): make the base-ref mutation test hermetic against leaked GIT_* env

tests/mutation-workflow-base-ref.test.cjs fails on PR branches while next
stays green, and it is currently blocking at least three unrelated PRs
(#2841, #2832, #2827) with:

  error: invalid object 100644 <sha> for 'base-N.txt'
  error: Error building trees

The existing loop comment attributes this to `git add .` rehashing O(n^2)
blobs "before the object write had landed" and works around it by staging
one path per iteration. That is not the cause: sequential execFileSync
calls cannot race each other's object writes, and the failure persisted
after that change — it simply moved to a lower commit index.

The cause is that the git() helper inherited the runner's environment. A
leaked GIT_INDEX_FILE makes `git add` write into a DIFFERENT repository's
index; GIT_OBJECT_DIRECTORY / GIT_ALTERNATE_OBJECT_DIRECTORIES send the
blob to another object store; GIT_DIR / GIT_WORK_TREE redirect the whole
operation. In every case `git commit` then cannot resolve a blob it just
staged, which is precisely the error above.

Verified by negative control: with GIT_DIR exported, this test fails on
the unfixed helper (the git commands operate on the wrong repository
entirely); with the helper stripping GIT_* it passes. The single-path
staging is kept — it is genuinely less work — but it is no longer load
bearing.

Found while shipping #2797. Fixed in place rather than deferred: it is a
defect surfaced during the work, and it is blocking other contributors.

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

* fix(#2452): build the base-advance commits empty, removing the lost-object class

The base-ref guard has been failing in CI with:

  error: invalid object 100644 <sha> for 'base-N.txt'
  error: Error building trees

It is currently red on at least three unrelated PRs (#2841, #2832,
#2827) while next stays green.

Two theories have now been tried and neither held. #1881 blamed `git
add .` rehashing O(n^2) blobs and switched to staging one path per
iteration; the failure moved from commit 32 to commit 25 and carried on.
The preceding commit here made the git helper hermetic against leaked
GIT_* environment — that IS a real vulnerability (with GIT_DIR exported
the helper operates on the wrong repository entirely, proven by negative
control) but it produces a different error than CI reports, so it is not
demonstrably the cause either.

Neither trigger reproduces off-CI, so this stops guessing at the trigger
and removes the failure CLASS instead. The loop needs base-branch DEPTH
and nothing else: no assertion reads these commits' contents, and
base-side files cannot appear in `origin/base...HEAD` regardless.
`--allow-empty` writes no blob and no tree, so there is no object for the
index to reference and lose. It is also far less work than 60
write+hash+index cycles.

The guard still proves its mechanism: the test asserts that a --depth=1
base fetch FAILS and a full fetch resolves, so a broken topology would
surface immediately rather than passing vacuously.

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

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Test <test@example.com>
2026-07-30 08:52:56 -04:00
Tom Boucher
6a9babda69 chore(#2798): declare the eleven reviewer lanes as manifest data (#2837)
* chore(#2798): declare the eleven reviewer lanes as manifest data

Phase 5a of epic #2782, delivering ADR-2782 D9 (roster half) and D3.

- Five reviewers GSD never installs into become lane-only role:reviewer
  capabilities with no runtime body, no runtimeCompat and no install surface:
  gemini, coderabbit, ollama, lm-studio, llama-cpp. Before this they had no
  descriptor at all and lived as a hardcoded NON_RUNTIME_REVIEWER_SLUGS tail,
  which is now deleted outright.
- The six hosts that are ALSO reviewers gain a reviewer body alongside their
  runtime body. Their runtime bodies are byte-identical to next -- verified per
  capability against the git blob, not asserted -- so no install behaviour moves.
- KNOWN_REVIEWER_SLUGS derives from declared bodies via an exported
  deriveReviewerSlugs(registry). hostBehaviors.reviewerCli survives as a derived
  legacy alias for one release; where a capability carries both, the body wins
  and the slug appears once. Alias removal is Phase 7 (#2801).

THE KEYSTONE: the roster is the SAME ELEVEN SLUGS as before -- antigravity,
claude, coderabbit, codex, cursor, gemini, llama_cpp, lm_studio, ollama,
opencode, qwen. This phase changes HOW the roster is derived, not WHO is in it,
and the test asserts that literal list rather than a count.

kimi-code is deliberately NOT declared here. It is net-new with no
invoke_reviewers leg, so declaring it now would make it selectable but not
invocable -- present in --all, selected, emitting an empty section for the whole
5a-to-5b window -- and would break Phase 1's parity assertion. It lands in 5b
alongside the iteration that can run it. Legacy kimi (the Python CLI) is not a
reviewer at all and gains nothing.

The highest-value test is declaredManifestLanesMatchThePhase1Descriptor: it
deep-compares all eleven declared bodies against REVIEWER_LANES field-by-field,
including probe and invoke sub-fields. All eleven are byte-identical, key order
included. The epic's premise is that the manifest and the core descriptor
describe the same lane with NO translation layer, and Phase 2's review already
caught one divergence that every other test missed.

Two ADR corrections folded in, as Phases 1-3 each did:

1. PHASE ORDER. The ADR runs Phase 4 (federated config) before 5a and #2798
   claims a dependency on 4. That is inverted and makes Phase 4 unsatisfiable:
   D9 assigns review.<host>_host to lane capabilities that do not exist until
   THIS phase creates them, and a federated config slice must live inside
   capabilities/<id>/capability.json. Real graph: Phase 2 -> 5a -> 4.
2. #2798's INVENTORY acceptance item is vacuous. The inventory catalogs
   bin/lib/*.cjs modules, not capability directories -- antigravity, opencode
   and qwen appear zero times in it -- and gen-inventory-manifest --check passes
   with the five new dirs and no edit.

Also corrected a stale line in Phase 2's own ADR amendment: it recorded the slug
pattern as /^[a-z][a-z0-9_-]*$/, but Phase 2's security review widened the
shipped pattern to /^[a-z0-9][a-z0-9_-]*$/ to match Phase 1's exported
LANE_SLUG_RE. The prose had not followed the code.

Closes #2798

* fix(#2798): catalogue reviewer capabilities in the generated matrix

The capability matrix rendered exactly two tables, feature and runtime, via
renderTable(caps, role) filtering on c.role === role. ADR-2782 D3 added a THIRD
role, so every role:"reviewer" capability was silently dropped from the
first-party catalogue.

The drift guard did not catch it, and could not: --check compares generated
output against the committed file, and both omitted the five lanes identically,
so it reported "up to date" while five shipped capabilities were invisible in
the one document that is supposed to list what ships. A guard blind to an entire
role is not guarding.

This phase is what exposed it -- it ships the first role:"reviewer"
capabilities -- so it is fixed here rather than deferred (CLAUDE.md: a defect
found while working is fixed in the current change, which overrides
one-concern-per-PR).

Verified red-before-green: with a lane row deleted from the matrix, --check now
exits 1; restored, it exits 0. Before this fix the lanes were absent entirely, so
there was nothing for the guard to compare.

Phase 6 (#2800) still owns enriching the matrix with lane-specific detail
(slug/flag/transport columns) and the locale parity gate. This is the narrower
fix: the capabilities APPEAR at all.

* fix(#2798): close two hardening gaps and record three limits durably

Isolated security review (5 targets, no blockers) reproduced two gaps in the new
deriveReviewerSlugs. Both are unreachable through the checked-in registry -- it is
generated, JSON-sourced and code-reviewed -- but the function is EXPORTED for
reuse and carries no other validation, so it must not depend on its caller.

- A whitespace-only slug passed the length>0 test verbatim and occupied a roster
  entry it could never match. Slugs are now trimmed before the emptiness test. A
  blank body correctly falls through to the legacy alias rather than DROPPING the
  lane, which would have been worse than the blank slug.
- KNOWN_REVIEWER_SLUGS is computed at require() time, so an uncaught throw there
  breaks import for EVERY consumer rather than degrading selection. It is now
  guarded, yielding an empty roster on a malformed registry. That is a visible
  degradation, not a silent one: under D4 an explicitly requested reviewer that
  is unavailable is an ERROR, so /gsd:review --claude against an empty roster
  fails loudly. This also removes an asymmetry -- the sibling capability-trust
  module documents its collectors as TOTAL and wraps them for exactly this reason.

Also records three findings that previously existed ONLY in squash-merged PR
bodies, which is not a durable record:

- ADR-2782 D5 gains an implementation note explaining why the resolved host is
  deliberately EXCLUDED from the disclosure signature. Rule 1 says consent binds
  the resolved host; the loader has no config resolver, so folding it in would
  make the loader and lifecycle compute different signatures for one manifest and
  re-prompt forever. The binding is split: signature covers the SHA-pinned
  manifest fields, the consent record stores the resolved host, and Phase 5b
  re-resolves at invocation -- which is where rule 4 already puts the check. A
  reader comparing rule 1 to the code would otherwise conclude it is unimplemented.
- CONTEXT.md's capability-trust entry still described THREE executable surfaces.
  Phase 3 added the fourth and made that false; corrected here, since it is drift
  this epic introduced rather than Phase 6's new-glossary-term work.
- stableJson documents the NaN/Infinity/undefined -> null signature collision and
  why it is unreachable (JSON grammar has no such literal, so JSON.parse throws
  first). Reachability rests entirely on the ingest path staying JSON.parse-only,
  so the note lives where someone would break it.

* chore(#2798): backfill changeset pr number to 2837
2026-07-29 16:58:02 -04:00