Conciseness

The ~30-line body is dense imperative rules with zero padding ("Keep one home per fact.", "Never hand-edit `docs/dev/README.md` …"), explains nothing Claude already knows, and assumes competence throughout — every token earns its place. It clearly fits the lean/efficient anchor, not the minor-over-explanation anchor below.

Actionability

Concrete, runnable commands and paths are given (`pnpm change:scope --base <verified-ref>`, `pnpm docs:affected --base <verified-ref>`, `pnpm docs:check`, `pnpm lint`, `pnpm test:lint`, `git diff --check`, `translate-docs`), which is mostly executable guidance. It falls short of fully copy-paste ready because commands use a `<verified-ref>` placeholder with no example value and there is no sample output for the impact-inspection commands.

Workflow Clarity

A clear sequence is established ("Require an explicit scope. Read the applicable `AGENTS.md`, then the owning source or module README before judging prose") with checkpoints ("A source-prefix match is a mandatory review prompt, not proof"; a dedicated Validation section with commands). It is not a 5 because there is no feedback loop describing what to do when `pnpm docs:check` or lint fails.

Progressive Disclosure

The skill is under 50 lines with no bundle files and no need for external references; it has well-organized sections (Place the fact / Inspect code impact / Generated and paired docs / Validation) and its few links (pairing contract, translation rules, terminology) are clearly labeled and one level deep — matching the simple-skill exception for a top score.

Specificity

The description lists four concrete actions ("writing, restructuring, auditing, or reviewing") and enumerates the full range of objects they apply to ("READMEs, JSDoc, comments, Agent instructions, or paired English/Chinese docs, including source-linked documentation impact checks"), which matches the comprehensive-coverage anchor rather than the minor-gaps anchor below it.

Completeness

It opens with an explicit trigger clause ("Use when writing, restructuring, auditing, or reviewing …") and pairs it with concrete, enumerated capabilities, clearly and explicitly answering both what the skill does and when to use it — the anchor-5 pattern. It is not a 4 because the 'when' is explicit and specific rather than improvable.

Trigger Term Quality

Natural terms users would say are present ("documentation", "READMEs", "JSDoc", "comments", "docs"), giving good keyword coverage, but a few common variations and synonyms (e.g., standalone "docs", "documentation review", "doc audit") are missing, so it falls just short of the comprehensive-synonyms anchor.

Distinctiveness Conflict Risk

"Cherry Studio repository documentation" carves out a clear niche, and distinctive triggers like "JSDoc", "Agent instructions", and "paired English/Chinese docs" make it unlikely to fire for unrelated skills — minimal conflict risk.