5 Commits

Author	SHA1	Message	Date
Tom Boucher	fa41bfec5c	enhance(#3942): the emitted-drift ack is PR-lifetime data — move it to a commit trailer (#3954) ... * test(#3942): failing-first suite for the emitted-drift ack commit trailer Binds 37 input classes from the phase test matrix to the behavior ADR-3942 specifies, before any of it exists. Stubs return benign empty values rather than throwing, deliberately: several rows assert that something DOES throw (cap overflow, uncomputable commit range), and a throwing stub would turn those green for the wrong reason and destroy the red. The two rows that carry the design's load: - merge-base semantics. The range is $(git merge-base base HEAD)..HEAD, not base..HEAD, because changedPaths comes from `git diff base...HEAD` (three dot). Two-dot would let the ack set and the change set disagree about which commits are this PR's. The fixture forks a topic branch, puts a trailer on each side, and asserts only the topic-side trailer is in range. - fail-closed on an uncomputable range. With fragments a depth-1 checkout passes VACUOUSLY, every fragment reading as brand-new. With trailers the range cannot be computed at all, and returning an empty set would silently disarm the gate, so it must throw. The fixture builds a genuine shallow clone rather than simulating one. Also covers the self-inflicted case: this change's own documentation quotes the trailer syntax, so an example landing at the end of a commit message would arm a live acknowledgment keyed on the literal placeholder text. Keys carrying angle brackets or whitespace are rejected. Authored per the phase artifacts 40-design.md and 50-test-matrix.md. Not yet run on the remote runner — this commit exists to be tested. Refs #3942 * chore(#3942): move the emitted-drift ack to a commit trailer Implements ADR-3942, superseding ADR-2719 section 3 and its #2789 amendment. Sections 1, 2 and 4-7 are retained: the conservation law is unchanged, only the storage of its escape hatch moved off the working tree. An acknowledgment explains one PR's ripple, and the moment that PR merges the ripple is in the base, so it can never clear anything again. It was stored in permanent shared state anyway, and every consequence of that mismatch had to be built and then maintained. The chain is #2789 -> #2914 -> #3078 -> #3842 -> #3823 -> #3875, each fix generating the next defect, ending in a scheduled sweeper whose own first PR could not merge itself. Added parseAckTrailers + renderAckTrailer (pure) and readAckTrailers (IO shell), reading Emitted-Drift-Ack-Hash: / Emitted-Drift-Ack-Growth: trailers over the merge-base range. tests/emitted-ack-trailer.test.cjs, 37 cases, written failing-first and confirmed red before any of this existed. Changed diffEmitted takes two structurally distinct key-space maps instead of one shared paths map. That closes a latent defect: the spaces were separated by convention only, so a growth key satisfied a hash lookup by naming coincidence. staleAcks now reports which space a key was declared in. REMEDIATION teaches the trailer, per space, with its example rendered through renderAckTrailer so the taught grammar cannot drift from what the parser accepts. Removed the sweep workflow, the guard-no-ack-on-next job, the standalone linter and its lint:ci entry, the fragment directory and its three spent fragments, the legacy single-file union, and the baseAck/spentAcks mechanism -- spentness is now structural, not computed. Two range properties carry the design and are pinned by tests rather than asserted: the range is merge-base scoped, matching git diff base...HEAD, so an already-merged trailer is out of range by construction; and an uncomputable range throws instead of reading as zero acknowledgments, which is the inverse of the fragment guard's vacuous pass. Three deliberate observable changes, each disclosed in the changeset: the unread runtime field is gone, the legacy file is no longer read, and cross-space excusal no longer works. Ten open PRs carry fragments and will meet a modify/delete conflict. Measured before landing and accepted deliberately; the one-line migration is in the PR body. Verified: lint:ci exit 0. Remote runner to follow on this exact sha. Refs #3942 * fix(#3942): silent trailer collapse, lost coverage, and an unbounded cap Six findings from the orthogonal review round, all fixed in place. BLOCKER -- two trailers of the same name on one commit collapsed silently. readAckTrailers built `separator=1d` where git needs `separator=%x1d`: the `separator=` value inside a %(trailers:...) placeholder is itself a pretty-format string, so the bare hex was emitted as two literal characters and the split on \x1d never matched. Two same-name trailers therefore joined into one value with errors empty -- the first reason absorbing the second entry's key. Silent truncation, the exact class MAX_ACK_TRAILERS throws to prevent. Confirmed with od -c against real git output before and after. The failing-first matrix did not catch it because its "both spaces coexist" row uses Hash plus Growth -- different trailer NAMES -- so the value separator was never exercised. Two regression tests now cover same-name trailers directly. Coverage recovered: normalizeAckReason and INVISIBLE stayed on the live path via parseAckTrailers but lost every test when the old suite was pruned. Back under test against the current surface -- all six invisible codepoints individually, whitespace collapse, trim, CRLF, and two seeded fast-check properties. Dropping any single codepoint now fails. MAX_ACK_TRAILERS counted raw trailers before de-duplication, so one trailer carried forward across rebased commits counted once per commit and could throw on a legitimate branch. Now counts distinct entries; 100 identical repeats dedupe to one. diffEmitted validated baseline, current and changedPaths but not the new ackHash/ackGrowth, so a bad shape raised an unhandled TypeError instead of an error verdict -- the same defect shape this file documents for #2778. Docs: CONTRIBUTING and TESTING-SUITES were rewritten only in their first sections; the later passages still taught fragments, git rm and the deleted guard, contradicting the new text directly above them. Finished. Also extends lint-removed-but-needed to exempt docs/adr and docs/research. That gate fails on any docs mention of a file deleted in the same diff, which makes it impossible to document a deletion in the PR performing it -- an ADR's whole job is naming what it retired. Exemption is narrow and comes with a test proving the gate still fires for a live consumer elsewhere under docs/. A guard that cannot fail is worse than no guard. Maintainer-approved. CONTEXT.md names the retired machinery by role rather than by filename: its generated projection lands in docs/, which that gate does scan. Adds docs/how-to/acknowledge-emitted-drift.md. The required docs set is Reference and Explanation, so the task quadrant can be empty with every gate green -- and this change has a real multi-step journey, including the fragment migration ten open PRs now need. lint:ci exit 0. Refs #3942 * docs(#3942): correct the duplicate-trailer rule in CONTRIBUTING Both axes of the code review independently flagged the same passage, without seeing each other's output. It claimed two declarations of the same key are always "a hard, loudly-reported error, not a silent last-wins". That is only half true, and the missing half is the one contributors hit: identical declarations -- same key, same reason -- dedupe silently, because a trailer legitimately survives a rebase and reappears on every rebased commit. Failing there would red a branch for doing nothing wrong, which is exactly why the dedup exists. Only a same-key/different-reason pair errors, and that one is a genuine ambiguity about which explanation holds. As written, the paragraph told a contributor that a rebase-carried trailer breaks the gate -- the opposite of the behavior. CONTEXT.md's parallel entry already stated it correctly; this brings CONTRIBUTING into line. Doc-only, root-level markdown. Refs #3942 * chore(#3942): backfill changeset PR number to 3954 --------- Co-authored-by: sim <sim@local>	2026-08-27 17:28:39 -04:00
Tom Boucher	1e3c995e6f	fix(#2789): scope the emitted-drift ack to the diff that introduced it (#2803) ... * fix(#2789): scope the emitted-drift ack to the diff that introduced it Every input to `diffEmitted` is base-relative -- `baseline` vs `current`, `changedPaths` from `git diff base...HEAD` -- except the ack set, which was read absolutely, from the working tree only. A differential machine consulting a non-differential input. So `staleAcks` asks exactly one question, "did a delta consume you?", and that cannot distinguish an ack that never explained anything (an authoring mistake) from one whose ripple is now absorbed into the base (the ack's SUCCESS condition). After merge an ack is in the second state but reports as the first. The trigger is ordinary. Actions sets GITHUB_BASE_REF on pull_request events only, so a push to `next` falls through to origin/next -- the very commit under test. Both sides build identical content, no deltas remain, and every live ack is reported stale. PR #2768 acked a deliberate 40866 -> 42020 byte growth, was green on its own lane, and reddened `next` the moment it merged. It also reds every PR branching off the poisoned base, and since publish-emitted-baseline is gated on the test job, it blocked baseline publication too. Give the ack the base side it was missing. `diffEmitted` now takes `baseAck` -- the same document at the base ref, via `readAckFileAtRef`. An entry already present there is SPENT: it may no longer consume a delta and is never reported stale, only surfaced as `spentAcks` for tidying. An entry new or reworded in this diff stays live, and if nothing consumes it that genuinely fails, with blame on the author who just wrote it. This closes a hazard the IMPLEMENTATION named but could not prevent -- a leftover ack silently pre-clearing the next ripple on its path. (ADR-2719 §3 asserted only that TOUCHING the file is the alarm; its residual-risk list never covered pre-clearing, and §3 now carries an amendment.) Verified against the two-PR laundering sequence -- land an innocuous ack, then change the artifact -- which passed silently before and now fails on both the hash pass and the size ratchet. Three things the design has to get right, each of which was wrong first: - A read failure on the base document THROWS; only absence-at-the-ref returns null. Returning null on error LOOKS armed (every entry stays live) but a live entry's defining power is that it CONSUMES a delta, so null is armed on the staleness axis and DISARMED on consumption -- silently the whole pre-#2789 gate. `git show` cannot tell absence from fault, so absence is established with `ls-tree`. - Re-arming a spent ack costs actual PROSE. Internal whitespace and the zero-width family collapse, and `runtime` is not compared: a doubled space, an invisible character, or a decorative field would otherwise re-arm an ack whose justification still describes the previous ripple, showing a reviewer nothing. - `baseAck` is REQUIRED once an ack declares entries -- omission is an error, not a silent "inherit nothing" -- so a dropped argument fails loudly instead of quietly restoring this bug with the suite green. Because a corrupt document ON THE BASE is expensive (the loud base-side failure reds every ack-carrying PR), scripts/lint-emitted-drift-ack.cjs blocks one from landing. It is standalone rather than importing parseAck -- scripts/ ships in the npm package and tests/ does not -- so a parity test runs both surfaces over one corpus and fails on divergence; it caught one immediately, a `null` document, now classed as policy rather than schema. Deadlock is separately foreclosed: a tree carrying no ack never reads the base, so the PR that DELETES a corrupt file still lands. `readAckFileAtRef` takes an injected git runner so all four branches are tested deterministically; it never executes in the remote runner, where the real-tree test skips for want of a base ref. It also refuses an option-shaped ref, since execFileSync's array form stops shell metacharacters but not git's own option parsing. Rejected: skipping the differential when base == HEAD. It treats the symptom, costs real coverage on the push-to-next lane, and does nothing about the downstream PRs the same flaw was reddening. Deletes the now-spent tests/emitted-drift-ack.json, and updates the CONTEXT.md canon and ADR-2719 §3: presence is no longer the alarm -- a LIVE entry is, and a spent one is inert. Closes #2789 * chore(#2789): backfill changeset PR number	2026-07-28 21:28:10 -04:00
Tom Boucher	e276cc7f00	enhance(#2778): make the size-ratchet failure name its own remedy (#2780) ... * fix(#2778): exempt intentionally-absent paths from the glossary gate check-glossary-refs asserts that every backticked tests/ token in CONTEXT.md resolves on disk. tests/emitted-drift-ack.json (ADR-2719 section 3) is absent on a healthy next BY DESIGN — it appears only inside a PR that needs it, which is what makes touching it the alarm. It passed before only by accident of backtick pairing: CONTEXT.md's RULESET entries are themselves backtick-wrapped and contain backticks, so the token happened to fall outside a code span. Any edit that shifted the parity exposed it. A gate that passes by luck is not passing. The exemption is exact, not a prefix hole: a sibling missing tests/ path still fails, and a test locks that. * feat(#2778): make the size-ratchet failure name its own remedy The growth branch stated a requirement and withheld the means of satisfying it: no ack file named, no schema, no key format, and no do-not-regenerate line — so the likeliest guess was to hunt for a baseline that #2724 deleted. Observed live on #2543. All remediation now comes from one frozen REMEDIATION export whose example document is rendered from ACK_VERSION, so the taught schema cannot drift from the schema parseAck accepts. A round-trip test feeds the printed document back through parseAck. The report is now built as a typed IR (buildReport) that formatReport renders, so tests assert on structure rather than prose, per CONTRIBUTING.md's raw-text-matching rule. Two defects found and fixed inline while building: - diffEmitted's validation early-return omitted newFileCapExceeded while formatReport reads its length, so the branch that reports a failed git diff threw a TypeError instead of naming the problem. - Printing one complete ack document per failing branch made each read as the whole file, so pasting the second over the first silently lost an acknowledgment. One document now covers the whole report. Closes #2778 * chore(#2778): backfill changeset pr number to 2780	2026-07-28 18:26:55 -04:00
Tom Boucher	1c1af70a4b	refactor(#2724): delete the committed golden fixtures and size baselines (#2767) ... * test(#2724): delete golden-install-parity fixtures, test, and generator Removes the 19 committed path->hash manifests, the two per-file size baselines, tests/golden-install-parity.test.cjs, and scripts/gen-golden-install-parity-zcode.cjs. These were pure functions of the source tree (ADR-2719); the differential attribution check (tests/emitted-attribution.test.cjs + tests/emitted-provenance.test.cjs) is now the sole gate for emitted-artifact propagation. tests/fixtures/install-tree/*.json and tests/golden-install-tree.test.cjs are unchanged (ADR-2719 section 7 exception). Follow-up commits fix the resulting bookkeeping: scripts/ci-test-scope.cjs's existence guard, .gitattributes, package.json scripts, the emitted-provenance totality guard's IO, the differential check's baseline acquisition, CI wiring to publish/restore the baseline artifact, and docs. * refactor(#2724): make the differential attribution check self-sufficient Three fixes required to delete the golden fixtures without breaking CI: - scripts/ci-test-scope.cjs: remove tests/golden-install-parity.test.cjs from the three rules that named it. #2759's missingRuleTestFiles guard hard-throws at module load if a rule names a test file absent from disk, which would break the changes job on every PR the moment the fixture-deletion commit landed. - tests/helpers/emitted-provenance.cjs: loadManifests() read the committed golden fixture directory. With that directory deleted at every future ref, this would throw at module load forever, taking the Phase 2 totality guard down with it. Rebuilt from real installer spawns (MANIFEST_FAMILIES + runMinimalInstall + buildParityManifest), the same shape emitted-runtime.cjs's currentManifests() already uses. - tests/emitted-attribution.test.cjs / tests/helpers/emitted-runtime.cjs: the real-tree test's baseline acquisition swaps from baselineManifestsAtRef(base) (git show at a ref that no longer carries fixtures) to resolveBaseline()'s documented precedence: env, then the on-disk cache, then an in-job build. The build fallback (buildBaselineAtRef, new) checks out base into a throwaway git worktree and runs the new scripts/gen-emitted-baseline.cjs there -- no npm ci needed, since bin/install.js and the test helper shells are Node-builtins-only. That script also publishes the baseline artifact from CI's push-to-next job (wired in a follow-up commit). * refactor(#2724): retire the merge-driver bridge and per-file size baselines The Phase 1 bridge (#2721) is retired now that the artifacts it guarded are deleted: scripts/git-merge-regen-driver.cjs, its test, and the 'setup:merge-driver' npm script are removed, and the .gitattributes merge=gsd-regen/linguist-generated block for the three deleted-path globs is dropped. tests/fixtures/install-tree/*.json keeps its normal merge behavior, unchanged (ADR-2719 section 7). scripts/update-size-baseline.cjs and its test are removed: their sole purpose was regenerating tests/workflow-size-baseline.json and tests/agent-size-baseline.json, both deleted. The 'size:baseline' npm script and its step in 'regen:derived' go with it. The per-file baseline describe blocks in tests/workflow-size-budget.test.cjs and tests/agent-size-budget.test.cjs are removed for the same reason; the independent loose-tier hard caps are untouched. The differential attribution check's size ratchet (tests/emitted-diff.cjs, already shipped in #2723) is the replacement anti-creep mechanism. 'npm run gen:golden' is replaced by 'npm run gen:install-tree', which keeps regenerating tests/fixtures/install-tree/*.json (the one artifact family ADR-2719 section 7 keeps committed); tests/golden-install-tree.test.cjs's error messages point at the new command name. tests/golden-parity-single-source.test.cjs's anti-divergence guard (#2266) is retargeted from the two deleted golden-parity consumers to their two replacements (tests/helpers/emitted-runtime.cjs and tests/helpers/emitted-provenance.cjs), which import buildParityManifest the same way — the divergence risk the guard exists for is unchanged. Also wires CI: a new publish-emitted-baseline job runs scripts/gen-emitted-baseline.cjs after a push to next and caches the result keyed on the sha; the test and test-full jobs restore that cache on pull_request events, keyed on the PR's base sha, and export GSD_EMITTED_BASELINE for tests/emitted-attribution.test.cjs's real-tree test to pick up. * docs(#2724): flip ADR-2719 to Accepted and update contributor docs Status: Proposed -> Accepted. Regenerated docs/adr/README.md index. CONTRIBUTING.md, docs/TESTING-SUITES.md, and CONTEXT.md (RULESET. EMITTED_ATTRIBUTION, RULESET.WORKFLOW_SIZE_BUDGET, RULESET. AGENT_SIZE_BUDGET, and the Emitted Artifact Provenance glossary entry) no longer point at the deleted golden-install-parity fixtures, size baselines, gen:golden, UPDATE_GOLDEN, or the setup:merge-driver / git-merge-regen-driver.cjs bridge. Editing shipped content now requires zero manual fixture regeneration, documented against the differential attribution check instead of the deleted commands. * docs(#2724): add changeset for removed golden-parity commands * fix(#2724): drop stale scripts/update-size-baseline.cjs glossary ref check-glossary-refs.cjs verifies every backtick-wrapped scripts/*.cjs token in CONTEXT.md resolves to a real file. The RULESET. EMITTED_ATTRIBUTION rewrite named the deleted script inside backticks, which the checker reads as a live reference, not historical prose. * test(#2724): retarget ci-test-scope tests off the deleted golden test tests/ci-test-scope.test.cjs asserted specific RULES entries select tests/golden-install-parity.test.cjs, and that every rule selecting it also selects both emitted gates. Both premises broke when the golden test was deleted (#2724): the deleted filename never re-appears in targeted_tests, and there was no longer a third file for the gates to travel alongside. Retargeted the two selection describe blocks to assert tests/emitted-provenance.test.cjs directly (the drift guard the golden gate's rules were retargeted to), and simplified the third block to assert the two emitted gates always travel together, without reference to the golden filename. * docs(#2724): repoint two contributor how-to guides at the differential check Both guides told contributors to regenerate a baseline against tests/golden-install-parity.test.cjs, which #2724 deletes. Repointed at the differential attribution check (tests/emitted-attribution.test.cjs, ADR-2719), which needs no manual regeneration step. * fix(#2724): repair phase6-capstone-conformance's deleted-baseline read An independent orthogonal review caught a real regression this branch introduced into a test file the branch's diff never touched: tests/phase6-capstone-conformance.test.cjs read tests/workflow-size-baseline.json (deleted earlier in this branch) with no fallback, so the whole suite would throw ENOENT the moment this branch landed. The test's actual intent — prove the host-loop workflow files are real, tracked, non-empty docs — is preserved by asserting the live byte count via the same shared counter (scripts/workflow-size.cjs) the size guards already use, instead of a committed snapshot. Also, from the same review: a stale doc comment in scripts/workflow-size.cjs still named the deleted scripts/update-size-baseline.cjs as a consumer, and buildBaselineAtRef's cleanup in tests/helpers/emitted-runtime.cjs left two fs.rmSync calls unguarded against masking the primary result/error, inconsistent with the try/catch already wrapping the git cleanup beside them. Both fixed. A doc comment was added to baselineFamilyNamesAtRef explaining why it (and its siblings) are kept despite having no production caller post-cutover — they still answer real questions about refs that predate the cutover. * fix(#2724): repair three real regressions found by remote verification 1. tests/emitted-provenance.test.cjs's two hostile-input tests (non-object manifest, unreadable fixture) drove loadManifests(tmp) and monkeypatched fs.readFileSync, both premised on the deleted fixture-directory read this branch already replaced with real installer spawns -- the negative assertions silently stopped firing. loadManifests() now accepts injected {families, install, build, clean} (defaulting to production values), giving the tests a real seam to drive a bad build result and a build failure through the ACTUAL loader instead of a reimplementation, and added coverage that clean() still runs on both paths. 2. .github/workflows/test.yml's two 'Export GSD_EMITTED_BASELINE' steps hardcoded shell: bash, which is wrong on windows-latest (native pwsh) and on test-full's macos-latest legs (native zsh per that job's own matrix) -- the repo's H1 shell policy (tests/policy-shell-pinning .test.cjs) caught it. Replaced the inline bash script with scripts/ci-export-emitted-baseline-env.cjs, a plain Node script: a bare 'node <path>' command line has no shell-specific syntax, so it runs correctly under bash, zsh, and pwsh without a shell override. tests/phase6-capstone-conformance.test.cjs's deleted-baseline read (caught by the same remote run, at a commit prior to this one) was already fixed in d0c3b1242 and is not touched here; verified still passing after these changes. * fix(#2724): revive ADR-1610's new-file size cap inside the differential An isolated review caught a real regression: deleting tests/workflow-size-baseline.json silently dropped NEW_FILE_CAP (ADR-1610 Decision point 3, the Codex project_doc_max_bytes anchor) with no successor. tests/helpers/emitted-diff.cjs's size ratchet already 'continue's past any file absent from sizeBaseline -- exactly the files this cap exists to bound -- so a brand-new workflow file sized 32,769-40,960 bytes passed CI clean and shipped, then risked silent truncation at the Codex anchor at runtime. ADR-1610 is Accepted and never referenced anywhere in this branch. Fix: NEW_FILE_CAP=32768 revived inside emitted-diff.cjs's own size-ratchet loop, keyed off the SAME hasOwnProperty(sizeBaseline, name) signal the growth check already computes -- 'new' is exactly 'present in sizeCurrent, absent from sizeBaseline'. Not ack-able, matching the tier hard caps it sits beside: the fix is extraction, not an acknowledgment entry. Documented, disclosed narrowing: the pure differential module cannot see XL_WORKFLOWS/LARGE_WORKFLOWS tiering (tests/workflow-size-budget.test.cjs's classification), so a legitimately large new file must extract rather than tier in, one release earlier than an existing file would need to. ADR-1610 itself is left unamended -- this restores its decision rather than re-litigating it. Also fixes a stale comment plus a redundant real 19-installer-spawn assertion left over from the pre-injection-seam version of tests/emitted-provenance.test.cjs's build-failure test, and annotates 3 of 4 stale golden-fixture citations in docs/reference/host-integration-capability-matrix.md as superseded (the 4th is an accurate historical PR narrative, left alone). * fix(#2724): repair three red CI defects on the golden-fixture cutover Windows-only provenance false attribution (defect A): the `hooks-built` provenance rule attributed `hooks/<name>.cmd` to itself. Those shims are Windows-only installer output (ensureCodexHooksJsonSessionStart / ensureCodexHooksJsonEvent, both in src/runtime-hooks-surface.cts) wrapping the same-named `.js` hook — no `.cmd` file is ever tracked in the repo, so the self-attribution resolved to a path that exists on no platform. Only windows-latest ever emits the key, so this only failed there. Fixed by special-casing `.cmd` inside the SAME `hooks-built` rule (not a dedicated rule) — a dedicated rule would match zero paths, and therefore report as a dead rule, on every non-Windows lane of the same totality guard. `sources` already supported per-match functions; `transforms` is extended to support the same shape so the attribution can vary by match within one rule. Baseline bootstrap was structurally impossible (defect B): `buildBaselineAtRef` ran `scripts/gen-emitted-baseline.cjs` from INSIDE the base-ref worktree, but that script is new in this PR and therefore absent at any base ref that predates it — every call failed closed with "Cannot find module". Fixed by running the PR checkout's own generator against the worktree via a new `--dir` parameter, decoupling "which copy of the script runs" from "which tree it measures" (`currentManifests`/`currentSizes` gained a `repoRoot` override, threaded down to `runMinimalInstall`'s new `installScript` override). This is not just a bootstrap fix: a differential needs ONE measurement schema applied to both sides, or the two stop being comparable the moment that schema evolves — running each side's own copy would silently reintroduce that risk. Verified locally end-to-end against real origin/next: resolves a valid {version, sha, manifests, sizes} artifact with the correct sha and no leaked worktree. Changeset placeholder (defect C): `pr: 0` -> `pr: 2767`, which is what let docs-lint evaluate the fragment for the first time; it already passes (docs/TESTING-SUITES.md and friends already document the removed scripts). Also fixed while in this file: an eslint no-unused-vars warning surfaced by the changed lint run (unused `cleanup` import in tests/emitted-provenance.test.cjs). Added regression coverage for both A and B: a cross-platform spot-check that drives the real hooks-built rule against `.cmd` keys directly (not through a real Windows install), and a real-tree test that drives buildBaselineAtRef against a base ref verified (via git cat-file) to lack the generator, both skipping honestly rather than false-passing when their precondition does not hold. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01W5kQs6ZufZDySC6zDJfYP6 * fix(#2724): repair false .cmd byte-provenance and a permanently-skipping regression test Two isolated-review findings on PR #2767: - `hooks-built`'s `.cmd` branch attributed the Windows shim's bytes to the wrapped `hooks/<name>.js` script, asserting a byte-provenance link that does not exist — traced against buildCodexHookWindowsShimIR (src/runtime-hooks-surface.cts), only the script's NAME (a literal in that same file) flows into the .cmd bytes, never its content. Point `sources` at HOOKS_WINDOWS_SHIM_SRC instead, matching the code-derived convention used elsewhere in the table. Since `sources` is checked before `transforms` in the differential, the wrong mapping silently excused any .cmd byte movement caused by editing the wrapped .js file. - The `buildBaselineAtRef` regression test skipped unless a resolvable base ref still lacked scripts/gen-emitted-baseline.cjs — true only until this PR merges, after which every base ref carries the file and the test skips forever with zero ongoing coverage. Rebuilt hermetically: synthesize the missing-generator condition in-place via git plumbing (a throwaway commit, child of HEAD, with just that one file removed from a scratch index), never touching the real working tree, HEAD, or index, and never depending on ambient history or remotes. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01W5kQs6ZufZDySC6zDJfYP6 * fix(#2724): tolerate the remote runner's dubious-ownership git mount in the emitted baseline path The runner container mounts the repo at a path owned by a different uid than the process running the suite, so git's dubious-ownership protection refuses every git operation there. GitHub Actions never hits this because actions/checkout registers the workspace as safe automatically; this runner's container does not. buildBaselineAtRef is the production build-fallback the sole remaining emitted gate depends on (resolveBaseline's in-job-build leg), not just a test helper, so the fix is in the shared git() wrapper (emitted-runtime.cjs) that every caller — resolveChangedPaths, resolveBase, buildBaselineAtRef's worktree add/remove/prune, and the hermetic regression test added in the prior commit — funnels through, plus gen-emitted-baseline.cjs's own rev-parse (now reusing that same wrapper instead of a second execFileSync, so the fix has one source of truth). Each call declares -c safe.directory=<the exact directory it already operates on>, never the * wildcard. Audited every other helper on this surface (emitted-diff.cjs, emitted-baseline.cjs, install-shared.cjs) for the same gap: none of them shell out to git at all. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01W5kQs6ZufZDySC6zDJfYP6 --------- Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>	2026-07-28 15:41:43 -04:00
Tom Boucher	90ba0ef10b	docs(#2720): submit ADR-2719 — emitted-artifact attribution design contract (#2726) ... Replaces the committed golden-install-parity hash manifests and per-file size baselines with a computed conservation law: every emitted path whose hash moves must be attributable, via a declarative provenance table, to a path the PR actually changed. Supersedes ADR-2264 Decision §2-§4 and its Amendment; ADR-2264 Phase 1 (the single-source buildParityManifest and exclusion constants) is retained and depended upon. Satisfies ADR-2264 AC1 rather than rewording it away, per that ADR's own 2026-07-17 audit. Docs-only. Both sides of the supersession edited together; ADR index regenerated with gen-adr-index.cjs --write. Closes #2720 Co-authored-by: Claude Opus 5 <noreply@anthropic.com>	2026-07-27 16:47:52 -04:00