Conciseness

The body is dominated by terse tables and rules with no padding or explanation of concepts Claude already knows. Minor trimming is possible: 'Use `references/storybook-style.md` for the final pass' is repeated across four mode bullets, and Step 5's mode list restates routing already in Step 1's table — the redundancy keeps it at the 4 anchor rather than the lean 5.

Actionability

Guidance is fully executable for an instruction-only skill: a request-pattern→mode table, a doc-type list, explicit intervention thresholds, a concrete strategy-artifact checklist, and exact commands ('yarn fmt:write', 'yarn docs:check'). Not the 4 anchor because no key detail is deferred without a pointer to the reference that owns it.

Workflow Clarity

A clearly sequenced 7-step workflow, explicitly split into diagnosis (1–4) and action (5–7), with a validation feedback loop ('Fix any errors reported by `yarn docs:check`, then run it again to confirm') and explicit guards ('Do not run validation in `strategy` mode') — matching the 5 anchor's validate→fix→retry structure.

Progressive Disclosure

The Reference Files table signals each of the four existing `references/` files with what it owns and when to load it, ownership rules prevent overlap, and loading is one level deep with no nested reference chains — the clear-overview-with-well-signaled-references structure of the 5 anchor.

Specificity

The description enumerates all five concrete capabilities of the skill — 'Review, improve, rewrite, author, or plan Storybook documentation in /docs' — matching the five modes defined in the body, which is comprehensive coverage rather than the partial list of the 4-anchor.

Completeness

It explicitly answers both questions: 'what' is the verb list scoped to Storybook documentation in /docs, and 'when' is a concrete 'Use this when asked to...' clause with trigger phrases — the exact structure of the 5 anchor's example.

Trigger Term Quality

The 'when' clause uses natural user phrasing ('asked to review docs, improve a page, rewrite documentation, draft new docs, or advise on docs strategy') that mirrors the capability verbs. A few common synonyms users might say ('edit', 'update', 'audit docs', 'fix formatting') are missing, so it falls just short of the comprehensive-synonym 5 anchor.

Distinctiveness Conflict Risk

Scoping to 'Storybook documentation in /docs' carves out a clear niche, but the terms 'documentation' and 'review docs' could still collide with generic docs/lint skills in the same environment — minor overlap risk with closely related skills, matching the 4 anchor.