Conciseness

The body is dense and operational throughout: no concept explanations Claude already knows, no library tours, and every section carries decision-relevant content. It is not a 5 because of minor trimmable redundancy -- the in_place_resolved rule is stated in the verdict table, a dedicated section, and the anti-patterns list, and the per-verdict cost columns are orchestrator context rather than skill instruction.

Actionability

Guidance is fully executable: concrete commands ("gh pr diff --name-only", "grep -rn <symbol> docs/src/content/docs/"), exact grep patterns per symbol class ("^@click.command", "--[a-z-]+"), a literal L0 decision rule with its return payload, a complete copy-ready JSON output schema, and a bounded context envelope. This matches the 'fully executable; copy-paste ready' anchor.

Workflow Clarity

The 3-layer funnel (L0 gate, L1 symbol grep, L2 LLM call) is clearly sequenced with explicit per-layer exit conditions ("The skill returns the verdict from the earliest layer that can decide"), the anti-patterns section is an explicit output-validation checklist ("orchestrator will reject"), and the output contract is unambiguous. Not 4: no validation gaps remain for this decision-only, non-destructive workflow.

Progressive Disclosure

No bundle files exist and none are needed; the body is self-contained with well-organized, clearly headed sections (Architecture, Steps, Verdict semantics, heuristics, Anti-patterns, Output contract). It does not reach 5: at ~155 lines it exceeds the short-skill exemption, and sections like the rename heuristic and verdict semantics table could arguably live in one-level-deep reference files.

Specificity

The description names multiple concrete actions with explicit inputs and outputs: "classify the documentation impact of a pull request diff, returning one of three verdicts -- no-change, in-place edit, or structural change", "Reads .apm/docs-index.yml as the corpus map; never reads the full corpus". It matches the comprehensive-coverage anchor; score 4 would require minor gaps, but coverage of what the skill does is complete.

Completeness

Both 'what' and 'when' are present: the what is fully explicit, and activation guidance ("Activate as a sibling skill of docs-sync; the orchestrator calls this first, before any panel spawn") satisfies the explicit-trigger requirement, so the completeness cap of 3 does not apply. It is not a 5 because the 'when' is system-directed rather than a concrete user-voice trigger phrase like 'Use when the user asks about doc impact of a PR'.

Trigger Term Quality

Relevant domain keywords are present ("documentation impact", "pull request diff", "docs", the three verdict names), but the phrasing is oriented to an orchestrator ("Activate as a sibling skill of docs-sync") rather than to natural user triggers, and common variations like "PR", "docs update", or "doc changes" are missing. This matches the 'some relevant keywords but missing common variations or synonyms' anchor rather than the good-coverage anchor at 4.

Distinctiveness Conflict Risk

The description carves a clear niche -- doc-impact classification with three named verdicts, a specific corpus map file (.apm/docs-index.yml), and an explicit sibling-skill position within docs-sync -- so it is unlikely to trigger for the wrong skill. This matches the 'clear niche with distinct triggers; minimal conflict risk' anchor.