Conciseness

The body is a lean, dense checklist that assumes Claude already knows FastAPI and asyncio; it explains only non-obvious, project-specific rationale ("a not-yet-done task from a dead loop is never done") and every line is an actionable check. This matches 'lean and efficient; every token earns its place' — it is not the 4 anchor, which requires over-explanation to trim.

Actionability

Guidance names exact identifiers and idioms to execute: `app.dependency_overrides[get_dependencies]`, comparing `task.get_loop()` against `asyncio.get_running_loop()`, clearing task handles in `finally`, `_safe_vault_path`, monkeypatch-deleting `VAULT_MEMORY_API_KEY`, and `skipif(os.name == "nt")`. Per the scoring notes, an instruction-only skill without code is not penalized when the guidance is this concrete, so it meets 'fully executable... specific examples cover the common cases' rather than stopping at 'minor gaps'.

Workflow Clarity

The 'Review order' section gives a clear prioritized 1-2-3 sequence (correctness, regressions, missing tests) with concrete per-step criteria, but there are no explicit verification checkpoints (e.g., when findings are complete enough to report). This fits 'clear sequence with most checkpoints present; minor validation gaps' rather than the explicit validate/recover loops of a 5; the destructive-operation cap does not apply since this is a read-only review skill.

Progressive Disclosure

The skill is under 50 lines with no external references needed (no references/, scripts/, or assets/ directories exist), and it is organized into four well-labeled sections. Per the judging guidelines, a short skill with no need for external references scores 5 with just well-organized sections.

Specificity

The description lists six concrete review areas ("correctness, regressions, and missing tests", "async pitfalls, FastAPI/DI/auth checks, and test-quality signals"), matching the anchor for multiple specific concrete actions with comprehensive coverage of its domain.

Completeness

There is a clear 'what' (a review checklist covering named checks), but no 'Use when...' clause or equivalent explicit trigger guidance — the 'when' is only weakly implied by the codebase name. Per the judging guidelines, a missing 'Use when...' clause caps completeness at 3.

Trigger Term Quality

Natural terms like "Review", "regressions", "missing tests", "FastAPI", "async", and "auth" are present, but common variations users would say ("code review", "PR review", "Python", "pull request") are missing, and "vault-memory" is codebase-internal jargon. This fits 'good keyword coverage; a few natural terms missing' rather than the comprehensive-synonym coverage of a 5.

Distinctiveness Conflict Risk

Scoping to "the vault-memory FastAPI/async codebase" gives a clear niche with minimal wrong-skill triggering, but generic terms like "review" and "missing tests" carry minor overlap risk with general code-review skills — 'mostly distinct; minor overlap risk' rather than the minimal-conflict 5.