Conciseness

The body is dense with non-obvious, high-value rules (beta vs. stable import forms, the // => derivation procedure, smartypants handling), but "How It Works" steps 1-4 and the "Reviewing" steps in Usage restate the same fetch-read-apply-output workflow. That duplicated section is a minor trimmable redundancy, matching the "minor instances of over-explanation" anchor rather than the every-token-earns-its-place anchor.

Actionability

Guidance is concrete and executable throughout: the exact fetch URL, build commands ("pnpm --filter cva build"), file paths (docs/src/content.config.ts, docs/astro.config.ts), and precise code forms ("cva(base, options)" vs "cva({ base, ...options })"). Specific commands and examples cover the common review and writing cases, matching the fully-executable anchor for an instruction-only skill.

Workflow Clarity

The fetch-read-apply-output sequence is clearly numbered with error-recovery branches ("If the fetch fails, fall back to the cva house style", "If no files are specified, ask the user"), but there is no validation checkpoint on findings before they are reported or applied. This matches "clear sequence with most checkpoints present; minor validation gaps" rather than the explicit validate-fix-retry anchor.

Progressive Disclosure

No bundle files exist, so this scores against the single-file structure: a ~47-line body with well-organized sections (How It Works, Guidelines Source, Usage, cva house style), working internal anchors, and one-level-deep external pointers (AGENTS.md, the guidelines URL). Per the simple-skill guidance, a short skill with no need for external references and clean organization earns the top anchor.

Specificity

"Review or write docs/prose for Writing Guidelines compliance" names the domain and exactly two actions (review, write), matching the anchor for 1-2 concrete actions that are not comprehensive. Sub-capabilities like auditing, fixing, or rewriting prose are only implied through trigger phrases rather than stated as capabilities, so it falls short of the several-actions anchors.

Completeness

It explicitly answers what ("Review or write docs/prose for Writing Guidelines compliance") and when ("Use when asked to... or when writing/editing content under docs/src/content/docs/") with concrete trigger phrases. This matches the anchor requiring both what and when with concrete trigger phrases.

Trigger Term Quality

The description quotes multiple natural user phrasings — "review my docs", "check writing style", "audit prose", "review docs voice and tone", "check this page against the writing handbook" — plus the content path "docs/src/content/docs/". Coverage of natural terms, synonyms, and phrasing variations matches the comprehensive-coverage anchor.

Distinctiveness Conflict Risk

The Writing Guidelines compliance niche and repo-specific docs path make it mostly distinct, but generic triggers like "check writing style" and "write docs" carry minor overlap risk with general writing/editing skills. This fits the "mostly distinct; minor overlap risk" anchor rather than the clear-niche anchor.