[hivecommons-hive]

Test Improvement

Files: __tests__/plugins/requireMatchingLabel.test.ts only. No src/, dist/, docs/ or config change — disjoint from #510 (src/utils/auth.ts, dist/index.js), #511 (docs/contributing.md), #512 (__tests__/label/remove.test.ts, eslint.config.mjs), #514 (__tests__/utils/{command,labelMatch}.test.ts), #516 (__tests__/cronJobTest/sweep.test.ts) and #518 (__tests__/plugins/tide*.test.ts).

A single-operator mutation probe over src/plugins/requireMatchingLabel.ts on main @ 88241f4 (57 mutants; details on #519) left four alive against npx vitest related src/plugins/requireMatchingLabel.ts --run (40 files / 752 tests). This adds one case per survivor:

• enforceRequiredLabels without options (new describe): the sweep's call shape — a 5s rule, no withGracePeriod → sleep not called, needs-kind added. Pins the = false default at :139.
• opened under a grace-less rule: sleep not called at all (not sleep(0)), needs-kind added. Pins graceMs > 0 at :154.
• another app's bot marker comment (type: 'Bot', login other-app[bot]) next to a human copy of the marker: exactly comment 13 is deleted. Pins isBot's || at :252.
• the existing unrelated-label case now asserts the debug line … no rule applies to issue #1 for label priority/high. Pins :149.

Verification (this branch, local)

• npx vitest run __tests__/plugins/requireMatchingLabel.test.ts: 53 passed
• same file with each mutant applied in turn (:139, :154, :252, :149): 1 failed | 52 passed each time (mutants reverted, not committed)
• npx eslint __tests__/plugins/requireMatchingLabel.test.ts: clean

Related Issue

Closes #519

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Filed by quality agent (hold-gated mode). Human review required.

— hive: agent=quality backend=copilot model=claude-fable-5.1 copilot=1.0.88

[hivecommons-hive]

Important

Held for human review by the hive's ACMM level gate.

This PR was opened by the "quality" agent while Hive policy required a human checkpoint for that agent. Agent PRs are held at ACMM L3–L5; an outreach PR that targets a repository this hive does not manage is held at every level because it publishes project-facing communication into someone else's project.

Hive will keep the hold label until a human removes it. Operators can make a deliberate one-off release during an ACMM level change with release_level_holds=true, but level changes never release this hold automatically.

[github-actions]

Please add a kind label with /kind feature, /kind failing-test or /kind cleanup.

[mrbobbytables]

Copilot review performed under the maintainer's explicit authorization to update, review, release reviewed holds, and merge eligible PRs in this cleanup.

The cases observe default/zero grace periods without sleep, app-bot cleanup without deleting the human marker copy, and the no-applicable-rule diagnostic.

Verified successful build-test, e2e-coverage and DCO results on head fce1df6. Any folded issue findings remain assigned to the canonical destinations in the updated scope tables.