Conciseness

The body is dense with project-specific rules (memoization, forwardRef, "Padding over margin", type composition ordering) and assumes Claude's React competence rather than teaching it. Minor trimmable padding keeps it from 5: the space scale is listed twice (bullet list at 'Space: 0, 0.25, 0.5...' and again as a full code block), and the '**Benefits:**' list under Compound Components explains why rather than instructing. It is clearly above score 3, which would require noticeably unnecessary explanation.

Actionability

Most guidance is concrete and executable: an exact folder tree, precise naming contracts ("Export both a `*BaseProps` and `*Props` type"), copy-ready snippets for the context hook, generics, and prop-type intersection order, and concrete token values with a source file path. Minor gaps hold it below 5: "All components MUST support a way to override styles (varries by web/mobile platform)" says nothing about how, and the reference components (Select, Stepper, Carousel) are named without paths.

Workflow Clarity

The 5-step 'Component Development Workflow' gives a clear sequence (research → clarifying questions → implement web-first with "unit tests & stories" before mobile), but validation checkpoints are only implicit — it never says to run the tests or verify they pass before proceeding to mobile. This matches anchor 3 ('sequence present but checkpoints missing or implicit') rather than 4, which requires most checkpoints to be present.

Progressive Disclosure

Sections are well organized with clear headers, but the skill is a ~190-line single file with no bundle files, and substantial content that belongs in a separate reference is inlined: the full token catalog (hue/step tables, semantic color mappings, the space scale code block) duplicates what the skill itself calls the definitive source, theme.ts. This fits anchor 3 ('content that should be separate is inline'); it is not 2 because structure is good, and the under-50-line exception for scoring 5 does not apply.

Specificity

The description names its domain ("CDS React components in any package") but lists no concrete actions or capabilities — it never says what the skill actually does. This matches the anchor 'Names the domain but actions are minimal or generic' rather than score 1, since it is not entirely vague, nor score 3, since no 1-2 concrete actions are stated.

Completeness

The 'when' is explicit ("whenever working on CDS React components in any package") but the 'what' is entirely absent — the skill's purpose (enforcing development rules and conventions) must be inferred. This matches anchor 2 ('only "when" is present without "what"', e.g. 'Use when working with documents'), not score 3, which requires a clear 'what'.

Trigger Term Quality

"CDS React components" and "package" are relevant, specific domain keywords, but coverage stops there — no natural variations or synonyms a user might say (e.g. UI components, design system, web/mobile component work). This fits 'Some relevant keywords but missing common variations or synonyms' rather than score 4's 'a few natural terms missing' (most are missing).

Distinctiveness Conflict Risk

"CDS React components" carves a clear niche with minimal conflict risk, matching 'Mostly distinct; minor overlap risk with closely related skills'. It is not score 5 because "in any package" widens the trigger to all React work in the monorepo, which could overlap a general React skill.