Conciseness

The body is lean, directive, and free of explanations Claude already knows (e.g., "Run `git diff` to inspect the actual code changes", "Check changed files for `TBD`, `TODO`, `FIXME`, `HACK`, `XXX`"). Not a 5 because boundary concerns are restated across the background_information block, Core Principle, Mechanical Check 4, and Judgment Check 10.5, which could be tightened; clearly above a 3 since there is no padded or unnecessary explanation.

Actionability

Concrete executable guidance throughout: a specific first command (`git diff`), explicit grep patterns for placeholder and secret detection, per-check reject conditions, a severity vocabulary, and a copy-paste-ready output template with a verdict enum. As an instruction-only skill this matches the anchor-5 standard of specific, complete guidance covering the common cases.

Workflow Clarity

Clear sequence (First Action → numbered Mechanical Checks 1–6 → Judgment Checks 7–12 → Severity → Verdict → Stop/Escalate) with explicit validation checkpoints (each check has a reject condition), an escalation path for ambiguity, and a remediation feedback loop established via "After remediation for a rejected review". Matches the anchor-5 combination of explicit validation, feedback loops, and a checklist.

Progressive Disclosure

A single-file skill with no bundle files, well-organized headed sections, and no nested or dead references — the body cites real inputs (requirements.md, design.md, tasks.md, spec.json). Not a 5 because the file runs ~165 lines and material such as the detailed check descriptions or the Common Rationalizations table could live in one-level-deep reference files; above a 3 since structure and navigation are good.

Specificity

"Review a task implementation against approved specs, task boundaries, and verification evidence" names one action but three concrete, specific review bases, placing it noticeably above the anchor-3 midpoint (1-2 concrete actions) though short of several distinct actions. Not a 3 because the multiple named review targets make the capability concrete; not a 5 because it uses a single verb rather than comprehensive action coverage.

Completeness

Explicitly answers both questions: the what is "Review a task implementation against approved specs, task boundaries, and verification evidence" and the when is "Use after an implementer finishes a task, after remediation, or before accepting a task as complete" with three concrete trigger phrases. This matches the anchor-5 example exactly; a 4 would require the when to be less explicit.

Trigger Term Quality

Natural phrases like "task implementation", "approved specs", "remediation", "implementer finishes a task", and "accepting a task as complete" give good keyword coverage for this workflow. Not a 5 because common synonyms such as "verify", "check", "audit", or "approve" are missing; clearly above a 3 since multiple natural workflow terms are present.

Distinctiveness Conflict Risk

"Review a task implementation against approved specs" carves a clear niche (spec-boundary task review within a spec-driven workflow) with workflow-state triggers. Not a 5 because "review implementation" phrasing has minor overlap risk with general code-review skills; well above a 3 because the spec/boundary/evidence framing is distinctive.