Conciseness

Nearly all content is bestax-specific convention Claude cannot know (helper-prop exceptions per sub-part, gap/margin scales, the inline-style translation table), so it is efficient overall. Minor trimming opportunities remain: 'references/api.md has the details' is repeated three times, and 'so the server and client markup match' appears in both the ClientOnly and Portal paragraphs; a few run-on parentheticals could be tightened. This fits the score-4 anchor (efficient with minor over-explanation), not score 5, since some tokens are spent repeating rationale.

Actionability

The component spine is complete, copy-paste-ready TSX with exact imports; the CSS rung shows executable code; rung 3 gives the exact install command and @use syntax; verification names concrete commands ('npm run dev', 'npm run build', renderToString + grep). The one gap: 'See examples/stat-card.tsx for a complete worked example' points at a file that does not exist in the bundle, so the promised composition example cannot actually be followed — concrete guidance with a minor gap, the score-4 anchor rather than score 5.

Workflow Clarity

The sequence is explicit and ordered: pick context → check the catalog for an existing component → surface the build/compose/duplicate decision → compose first → apply the spine → take the lowest styling rung → verify in the browser → tests/stories, capped by a checklist. Validation checkpoints include a feedback loop ('Fix what you see, then re-check') and a headless fallback that explicitly flags 'the visual pass as not done', matching the score-5 anchor (clear sequence, explicit validation, feedback loop, checklist).

Progressive Disclosure

The body is a well-signaled overview with one-level-deep references, each with its purpose stated ('start here', 'has the details', 'follow references/library-contributor.md instead'), and all three referenced files exist. Two structural defects keep it from score 5: 'examples/stat-card.tsx' is referenced but absent from the bundle, and references/patterns.md exists in the bundle but is never linked from SKILL.md, making it undiscoverable — good structure with minor organization gaps, the score-4 anchor.

Specificity

The description lists multiple concrete actions with named APIs: 'compose existing components, helper props, public hooks (useBulmaClasses, usePrefixedClassNames), and --bulma-* CSS variables' plus the full pipeline '(SCSS partial, stories, tests, docs, wiring)'. Coverage is comprehensive across both app and monorepo contexts, matching the score-5 anchor; no meaningful gaps remain.

Completeness

What is explicit ('Build a custom React component in the bestax/Bulma style... compose existing components... full component pipeline') and when is explicit with concrete triggers ('Use when creating a component beyond stock Bulma or extending one'). Both halves are clearly answered with trigger phrases, matching the score-5 anchor; it is not the score-4 case since the 'when' clause is already specific.

Trigger Term Quality

Good natural keyword coverage: 'Build a custom React component', 'bestax/Bulma style', 'extending one', 'component beyond stock Bulma'. A few natural phrasings users might say are missing (e.g. 'make a new component', 'custom styling/variant'), so it sits just below the comprehensive-with-synonyms anchor rather than clearly matching a single anchor.

Distinctiveness Conflict Risk

The package scoping ('@allxsmith/bestax-bulma', 'bestax monorepo', 'stock Bulma') carves out a clear niche unlikely to grab generic React skills. However, the description does not carve out form components even though a sibling bestax-form skill exists, so a request like 'extend an input component' could trigger this skill over the better match — minor overlap risk with a closely related skill, the score-4 anchor.