Distillation

🟡 (15:46) User asked the assistant to continue.
🟡 (15:46) Assistant reported that the label-transition guard had been restored and that its two regressions failed under the old behavior; four mutation checks remained before rerunning focused suites.
🟡 (15:47) Mutation testing temporarily restored unsafe API-error fallbacks in .github/workflows/ci-poller.yml. The parameterized test does not check CI when %s fails in src/modules/__tests__/ci-poller-workflow.js covered both check-suite lookup with { failCheckSuiteLookup: true } and branch-head lookup with { failBranchLookup: true }.
🟡 (15:47) The unsafe API-fallback mutation was caught: yarn vitest run src/modules/__tests__/ci-poller-workflow.js -t 'does not check CI when' --printConsoleTrace produced exactly 2 failed and 15 skipped tests out of 17. In both failure modes the mutated poller incorrectly queried /status, inspected check runs, removed ci-pending, added ci-ready, and posted that publishing was starting. .github/workflows/ci-poller.yml was then restored.
🟡 (15:49) Investigation found a malformed event-ID regression gap in src/modules/__tests__/approval-attestation.js: using two events invoked the comparator, but a singleton malformed string ID bypassed reduce and was accepted. The regression was tightened to a single invalid event so every relevant event ID is validated even when no comparison occurs.
🟡 (15:49) The strengthened test fails closed on malformed accepted-label event IDs initially failed because the selector returned { actor: "maintainer", eventId: "not-an-event-id" } instead of null. src/modules/approval-attestation.js was changed to fail closed for this singleton malformed-ID case.
🟡 (15:50) After the malformed-ID fix, yarn vitest run src/modules/__tests__/approval-attestation.js --printConsoleTrace passed all 7 tests in the file.
🟡 (15:50) Mutation testing removed the ci-pending recovery branch from .github/workflows/ci-poller.yml. The test restores ci-pending when the final ci-ready add fails in src/modules/__tests__/ci-poller-workflow.js failed exactly as intended: the log contained --add-label ci-ready but did not subsequently contain --add-label ci-pending, demonstrating that a failed final handoff could strand the issue without its polling label. The recovery branch was restored.
🟡 (15:51) The restored .github/workflows/ci-poller.yml handoff behavior removes ci-pending and stale ci-ready, attempts to add ci-ready, and on failure warns and restores ci-pending. If restoring ci-pending also fails, it revokes approval by removing accepted, ci-pending, and ci-ready with a final || true.
🟡 (15:51) Mutation testing changed cleanup in src/modules/update-issue.js back to Promise.all. The regression restores targets when accepted was already removed in src/modules/__tests__/update-issue.js then failed because removeLabel rejected with Error: Not Found { status: 404 } instead of allowing updateIssue() to resolve and restore the issue-body target - [x] github. This demonstrated that label cleanup and state restoration require independent outcomes. The production implementation was restored.
🟡 (15:52) Mutation testing removed error isolation from the Inform start step in .github/workflows/publish.yml. The contract test does not make the informational start comment a publication gate in src/publish/__tests__/publish-workflow.js failed because the section lacked continue-on-error: true, proving the informational start comment must not block publication. .github/workflows/publish.yml was restored.
🟡 (15:53) Assistant reported that all five planned production-guard mutations failed their exact regressions and were restored: the label-transition guard, failed check-suite/branch-head discovery behavior, final ci-ready handoff recovery, independent cleanup/state restoration, and start-notification error isolation. Malformed singleton event-ID coverage was additionally strengthened to close a reducer edge case.
🟡 (15:53) Focused validation command yarn vitest run src/modules/__tests__/approval-attestation.js src/modules/__tests__/ci-poller-workflow.js src/modules/__tests__/update-issue.js src/publish/__tests__/publish-workflow.js --printConsoleTrace passed exactly 4 test files and 39 tests.
🟡 (15:53) Work status was updated: Mutation-check each new regression guard and restore production code completed; Run focused stability checks and complete repository validation in progress; Obtain exact-tree independent security and lifecycle reviews pending; Address review findings and rerun final gates pending. All four tasks had high priority.
🟡 (15:53) Assistant began running the security/lifecycle-focused 4-file, 39-test subset 10 consecutive times before formatting, generated checks, full tests, lint, and whitespace validation.
🟡 (15:54) All 10 consecutive stability runs of src/modules/__tests__/approval-attestation.js, src/modules/__tests__/ci-poller-workflow.js, src/modules/__tests__/update-issue.js, and src/publish/__tests__/publish-workflow.js passed; each run had exactly 4 passing files and 39 passing tests.
🟡 (15:54) yarn prettier --write src completed successfully. It processed source and test files under src/libs/, src/modules/, and src/publish/, including the changed files src/modules/approval-attestation.js, src/modules/update-issue.js, src/modules/__tests__/approval-attestation.js, src/modules/__tests__/ci-poller-workflow.js, src/modules/__tests__/update-issue.js, and src/publish/__tests__/publish-workflow.js. Assistant reported formatting did not change the generated contract.
🟡 (15:55) Generated-file verification passed with node scripts/generate-publish-issue-title-parser.js --check.
🟡 (15:55) Full test validation via vitest run --printConsoleTrace passed exactly 27 test files and 192 tests.
🟡 (15:55) Lint passed with eslint src .github --ignore-pattern '!.github'.
🟡 (15:55) Whitespace validation completed with no output, indicating success.
🟡 (15:55) Assistant declared the exact formatted tree validated by generated-file verification, all 192 tests, lint, whitespace checks, and 10 consecutive stability runs; edits were frozen before independent review.
🟡 (15:56) Work status was updated: mutation checking and repository validation completed; Obtain exact-tree independent security and lifecycle reviews in progress; Address review findings and rerun final gates pending. Both remaining tasks were high priority.
🟡 (15:56) Two read-only background reviews were launched against the frozen exact tree: an adversarial security/data-flow review with task ID ses_f73f7789affeDjEvYjO7RdXEo2, and a workflow/lifecycle review with task ID ses_f73f72a5cffeoovGvSEYmQF3cW.
🟡 (15:56) Assistant stated that the merge gate remains closed until both independent reviewers return substantive evidence; no further edits are to be made while the exact validated tree is under review.

Distillation

Observations