Lean and efficient with no concept padding ('Lean SDC skill', 'Task is source of truth'); it delegates detail to a Task SOT file and every line earns its place, assuming Claude's competence.

Provides concrete executable guidance — 'Re-run `npm run lint && npm run typecheck && npm test`', 'Load and execute apply-qa-fixes.md', and a FIXED | WON'T_FIX | DEFERRED decision rule — copy-paste ready.

A clearly sequenced 7-step protocol with an explicit verification feedback loop (re-run gates in step 5) and a Post-phase verification checklist, matching the anchor for clear sequences with checkpoints.

A sub-50-line single-purpose skill with well-organized sections and a single clearly-signaled one-level-deep reference (the Task SOT file), which the rubric notes can score 3 for simple skills.

Names concrete actions ('Apply QA gate findings', 'hand back for re-review', 'Never self-approves or closes') but lists only two actions rather than a comprehensive set of multiple concrete actions, matching the 'names domain and some actions' anchor.

Clearly answers both 'what' (apply findings, hand back, never self-approve) and 'when' via an explicit 'Use when:' clause with concrete triggers.

Covers natural terms a user would actually say — 'apply QA fixes', 'remediate gate FAIL/CONCERNS', and the '/apply-qa-fixes' command — giving good coverage of common phrasings.

Targets a clear niche — QA gate remediation with an explicit no-self-approve boundary — whose triggers ('remediate gate FAIL/CONCERNS', '/apply-qa-fixes') are unlikely to fire for unrelated skills.