Conciseness

The body is dense, directive policy with no explanation of concepts Claude already knows ('Findings must be concrete, evidence-backed problems... not style preferences'). Minor trimmable spots remain — the 'Different models catch different classes of issues' justification and the highly specific exception-cleanup interleaving paragraph inlined in the main body — so it fits anchor 4 ('efficient; minor instances of over-explanation that could be trimmed') rather than the every-token-earns-its-place ideal of 5.

Actionability

Guidance is uniformly executable: an exact severity taxonomy ('Critical... practical exploitation... Reject'), a six-part finding format, a report template with Motivation/Approach/Summary placeholders, precise conditional routing ('Read references/api-review.md when the change adds... public or protected API outside an .Internal namespace'), and explicit posting-authorization paths. As an instruction-only skill this fully covers the common cases, matching anchor 5.

Workflow Clarity

The 8-step sequence has explicit validation checkpoints (verify-before-report rules, the Validation section, the pre-post head-SHA re-check), but two sections are both numbered '### 7' (Optional Multi-Model Review and Verify and Report Findings), and the multi-model step tells sub-agents to use 'the severity format defined above' when severities are actually defined below it. Validation is present throughout so anchor 3 does not fit, but the numbering defect and forward reference keep it below 5.

Progressive Disclosure

Two of the three bundle references (api-review.md, security-review.md) are clearly signaled with precise routing conditions in Step 5, but references/conventions.md is never linked from SKILL.md — it is only reachable one level deeper via a link inside api-review.md, a minor gap against the one-level-deep, well-signaled ideal of anchor 5.

Specificity

'Review EF Core pull requests or local changes for concrete correctness, compatibility, performance, security, and test-coverage problems' enumerates five concrete review dimensions and both change surfaces, matching anchor 4. It is above anchor 3 (more than 1-2 concrete actions, fairly comprehensive) but below anchor 5 since it rests on a single action verb and omits companion actions like posting review comments.

Completeness

It explicitly answers both questions: what ('Review EF Core pull requests or local changes for concrete correctness... test-coverage problems') and when ('Use when asked to review, critique, or check code changes before merge or submission') with concrete trigger phrases — the exact pattern of the anchor-5 good example.

Trigger Term Quality

'asked to review, critique, or check code changes before merge or submission' plus 'pull requests' gives good natural-phrase coverage users would actually say. It misses common synonyms like 'PR', 'diff', or 'look over', so it fits anchor 4 ('good keyword coverage; a few natural terms missing') rather than the comprehensive synonym coverage of 5.

Distinctiveness Conflict Risk

'EF Core pull requests' establishes a clear niche, but the when-clause alone ('asked to review... code changes') is generic and overlaps the very common generic code-review skills, fitting anchor 4 ('mostly distinct; minor overlap risk with closely related skills') rather than the minimal-conflict ideal of 5.