Conciseness

The ~37-line body is lean and operational throughout — constants with defaults, exact commands ("git -C <REPO_DIR> fetch origin"), output markers ("FINAL_MARKDOWN_BEGIN" / "FINAL_MARKDOWN_END"), and no explanations of concepts Claude already knows. Every token earns its place, matching the 5 anchor; not 4 because there is no over-explanation to trim.

Actionability

Concrete, near copy-paste guidance: "run_workflow(workflow_name=\"review-contributing-design\", script_path=<path to workflow.py>)", "cp workflow.py ~/workflows/review.py", and constant names with defaults (HEAD_REF, BASE_REF, REPO_DIR). Falls short of the fully-executable 5 anchor because the entire skill depends on "workflow.py (next to this file)", which is not present in the bundle — a missing key artifact rather than a minor gap, but above the incomplete/pseudocode level of 3.

Workflow Clarity

Clear sequenced steps (fetch → check out → run_workflow → extract between FINAL_MARKDOWN_* markers → save and attach) with checkpoints: "Tell the user how many files that is before starting a wide range" and "Spot-check one or two findings before reporting" — validation is present, so the batch-operation cap does not apply. Not the 5 anchor because there is no error-recovery guidance (e.g., empty diff, failed merge-base, run_workflow failure); clearly above the 3 anchor's implicit checkpoints.

Progressive Disclosure

Sections are well organized and the reference to workflow.py is one level deep and clearly signaled, but the referenced file does not exist in the bundle (no references/, scripts/, assets/, or workflow.py alongside SKILL.md), leaving a dangling reference that breaks navigation. The under-50-lines no-external-references exception does not apply since the skill's main payload lives in the missing file; this sits between the good-structure 4 anchor and the buried/inline-content 2 anchor, matching the 3 anchor's imperfect reference organization.

Specificity

Quotes: "Review every file changed in a boto branch, PR, or commit range against CONTRIBUTING.md and DESIGN.md", "one reviewer per file", "merge the findings into one deduplicated list sorted by severity" — inputs, process, and output are all concrete actions. Matches the comprehensive multi-action 5 anchor; coverage has no notable gaps, so it is not the 4 anchor.

Completeness

Explicitly answers what ("Review every file changed... against CONTRIBUTING.md and DESIGN.md... merge the findings into one deduplicated list sorted by severity") and when ("Use when asked for a per-file guideline/design-system review of a set of changes"). Both are concrete and explicit, matching the 5 anchor; the when-clause is explicit trigger guidance, not the weaker form of the 4 anchor.

Trigger Term Quality

Quotes: "boto branch, PR, or commit range", "per-file guideline/design-system review", "a set of changes" — natural phrasings users would say. Missing common synonyms such as "diff", "changeset", or "style guide", so it fits the 4 anchor rather than the comprehensive synonym coverage of 5, and clearly above the sparse keyword level of 3.

Distinctiveness Conflict Risk

Quotes: "against CONTRIBUTING.md and DESIGN.md", "one reviewer per file", "boto branch" — a clear niche (repo-specific guideline/design-system per-file review) with distinct triggers and minimal overlap risk with generic review skills. Fits the 5 anchor; not 4 because the named guideline files and merge/dedupe workflow make confusion with related skills unlikely.