Lists multiple specific concrete actions: 'Build or audit a design system including component library, design tokens, naming conventions, contribution model, and documentation.' This clearly enumerates distinct deliverables and activities.

Clearly answers both 'what' (build or audit a design system including specific components) and 'when' (explicit 'Use this skill whenever...' clause plus a detailed 'Triggers on' list). Both dimensions are thoroughly addressed.

Excellent coverage of natural trigger terms users would say: 'design system', 'component library', 'design tokens', 'atomic design', 'atoms', 'molecules', 'organisms', 'Storybook', 'Figma library', 'system governance', 'design contribution model'. These are terms practitioners naturally use.

Highly distinctive niche focused on design systems specifically. The trigger terms like 'atomic design', 'Storybook', 'Figma library', 'design system governance' are very specific and unlikely to conflict with general UI/UX or component development skills.

The skill is well-structured but verbose in places. Sections like 'Why this layer matters' for tokens explain things Claude already understands. The 'When to use' / 'When NOT to use' / 'Required inputs' sections add useful routing but could be tighter. The five-layer framework is detailed but some of the per-element/per-component documentation lists are somewhat obvious for Claude.

The skill provides clear workflows with numbered steps and specific deliverables, but lacks concrete executable examples—no code snippets for token implementation, no example token files, no sample audit output. Guidance is descriptive rather than copy-paste ready. References to templates exist but bundle files aren't provided, so the actionability depends on files we can't verify.

Both the 'new design system' and 'audit' workflows are clearly sequenced with logical ordering and dependencies (e.g., brand before tokens, foundations before elements). The audit workflow includes prioritization logic (foundation gaps first, high-use drift second). The failure patterns section serves as implicit validation checkpoints. For a design process skill (not destructive code operations), this level of workflow clarity is strong.

The skill references three specific files in a 'Reference files' section with clear descriptions and relative paths, which is good structure. However, no bundle files are provided, so these references are unverifiable. The main body itself is quite long (~200+ lines) and some content (like the detailed per-element documentation checklist or the full failure patterns list) could be offloaded to reference files to keep the SKILL.md leaner.