[hivecommons-hive]

Test Improvement

src/labels/prefixed.ts is 100 % covered by both suites, but six single-operator mutants survived npx vitest related src/labels/prefixed.ts --run (722 tests) on main @ 88241f4. This pins each one; no src/ or dist/ change.

__tests__/label/lifecycle.test.ts (built-in /lifecycle, /stage, /status):

• it.each: /stage beta over stage/alpha and /status in-review over status/in-progress → ['DELETE <stale>', 'POST <label>'] — kills exclusive: true → false on the /stage (line 32) and /status (line 33) registry entries; only /lifecycle and /priority had a replacement case
• /remove-lifecycle stale frozen with both on the issue → two DELETEs — kills .some → .every in the present filter (line 136); every other /remove-* case names one value
• with a mixed-case yaml value (lifecycle:\n - Frozen\n):
  • /lifecycle frozen → POST lifecycle/Frozen — kills the dropped value.toLowerCase() key in requestedLabels' canonical map (line 239)
  • the same with lifecycle/frozen already present → POST only, nothing deleted — kills sameLabel's a === b.toLowerCase() (line 266) on the exclusive stale filter
  • /remove-lifecycle frozen over lifecycle/frozen → DELETE lifecycle%2Ffrozen — kills the same mutant on the removal path

__tests__/label/label.test.ts › protected labels:

• /label hold lgtm is refused naming hold — kills find → findLast on the protected-label offender (line 255)

Files: __tests__/label/lifecycle.test.ts, __tests__/label/label.test.ts. Disjoint from every open hold PR #510–#537: none touches either file or src/labels/prefixed.ts (#512 edits __tests__/label/remove.test.ts only).

Verification (this branch, local)

• npx vitest run __tests__/label/lifecycle.test.ts __tests__/label/label.test.ts: 54 passed (47 before)
• each of the six mutants re-applied to src/labels/prefixed.ts against those two files: every one now fails, and only the test(s) named above fail for it
• npm run test:coverage: 163 files / 2213 passed, 100 / 99.75 / 100 / 100 (unchanged floor; the four remaining branch records are the docs(contributing): record the four negative-count BRDA branches as a v8 await artifact, not a gap #511 artifacts)
• npx eslint on both files: clean

Related Issue

Closes #538

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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 assert exclusive stage/status replacement, multi-label removal, both sides of configured-value casing, and the first protected-label refusal without a label write.

Verified successful build-test, e2e-coverage and DCO results on head 54d5849. Any folded issue findings remain assigned to the canonical destinations in the updated scope tables.