Conciseness

The body is mostly operational (exact output shapes, thresholds, reply modes), but padding is more than minor: the QA-FORMAT "Self-contained" bullet is a single ~300-word paragraph re-explaining its own test ("Test: with the report deleted, could the reader name every member from this option alone?"), Step 5 spends three sentences justifying why counts are repeated ("The repetition is deliberate, not redundancy to be optimised away..."), and Rules 8–9 duplicate the Step 3 gate detail. Fits anchor 3 (mostly efficient but could be tightened) rather than 4; not 2 since almost nothing explains concepts Claude already knows.

Actionability

Highly concrete for an instruction-only skill: exact line shape "- [N] [Severity] <file/symbol>: <problem>. (Fix: <proposed fix>)", literal reply modes (`critical+high`, `agent's choice`, `done`), numeric thresholds (500/50 lines, "Critical share ≤ 35 %"), and a worked example block. Not 5 because internal contradictions force guessing: the Context block lists 17 categories while Steps 2/4 say 16, and the Category-index numbers ("10 Architectural Integrity") contradict the Context numbering (#10 is "Documentation Health"), so an executor cannot map categories without interpretation.

Workflow Clarity

The sequence is strong: two clearly separated phases, an explicit mandatory verification gate with per-shape checks, a retry-once/loud-failure protocol ("record it as NOT SCANNED and report it prominently"), and a final checklist — matching anchor 5's feedback loops. It drops to 4 because the category pipeline is internally incoherent: Context has 17 categories vs "16 Category Checks" in Step 2, the index numbering doesn't match the Context list, and Step 4 cites "the 16 English names from the Context block above" ("Structural Integrity", "Code Hygiene") that the Context block never uses (it says "Structure", "Hygiene").

Progressive Disclosure

All three referenced bundle files exist (severity-rubric.md, verification-gate.md, example-findings.md), are one level deep, well-signaled at point of use, and the body explicitly delegates detail ("SKILL.md carries only the index below, not the executable detail") — close to anchor 5. Minor gaps hold it at 4: verification-gate.md self-describes as "Reference for Step 17.5 of the maintenance skill" while the body's gate is Step 3 (stale cross-link), and the five `maintenance-scan-*` agents that supposedly hold the executable per-category detail are not present anywhere in the bundle.

Specificity

Names several concrete actions — "project health audit", "maintenance sweep", "multi-category lead-engineer scan followed by interactive issue-by-issue resolution" — which matches the 'lists several specific actions; minor gaps' anchor. It falls short of 5 because the actions stay at the audit/sweep/resolve level with no coverage of what the scan actually checks or produces; it is above 3 because more than 1-2 actions are named in a concrete domain.

Completeness

Both halves are present: an explicit "Use when the user asks for..." trigger clause plus negative scope ("Not for routine lint/test runs, single-file cleanups, or plain check-project requests"), and a what of "multi-category ... scan followed by interactive issue-by-issue resolution". Not 5 because the 'what' is thin — no mention of the check categories, severity-graded findings, or proposed fixes — and not 3 because the 'when' is explicit and concrete rather than weakly implied.

Trigger Term Quality

"project health audit", "maintenance sweep", and "check-project" are phrases a user would naturally say, giving good keyword coverage, but "multi-category lead-engineer scan" is jargon no user would type and common synonyms like "tech debt", "code health", or "cleanup" are missing. Fits anchor 4 (good coverage, a few natural terms missing) rather than 5 (comprehensive coverage with synonyms) or 3 (only some relevant keywords).

Distinctiveness Conflict Risk

The negative scope clause ("Not for routine lint/test runs, single-file cleanups, or plain check-project requests") explicitly fences off the nearest overlapping skills, and the niche — multi-category audit plus interactive resolution — is distinct. This matches anchor 5 (clear niche with distinct triggers; minimal conflict risk); anchor 4's 'minor overlap risk' understates the explicit disambiguation.