Conciseness

The body is lean and assumes Claude's competence (e.g. 'Treat palette.ts / typography.ts as the source of truth... Read them directly rather than hardcoding'), with no explanation of known concepts. Not 5 because the Layout tree and the Core Files table redundantly list the same four files with overlapping role descriptions.

Actionability

Concrete file paths, an executable makeStyles() example, a firm convention ('not @emotion/styled, MUI styled(), Box, or the sx prop'), and a numbered color-scheme flow give mostly executable guidance. Not 5 because the createMuiTheme snippet contains a placeholder ('components: { /* MUI overrides */ }') and the component-override contents are left unspecified.

Workflow Clarity

The 'How a Color Scheme is Applied' section gives a clear 4-step sequence from user preference to ThemeProvider wrapping, and the styling guidance is unambiguous for a single-purpose reference skill. Not 5 because the workflow has no checkpoint (e.g. how to verify a new token is actually consumed), though nothing here is destructive or batch-oriented so the 3-cap does not apply.

Progressive Disclosure

Sections are well-organized and the only cross-reference ('load panel-extension-api skill') is clearly signaled and one level deep, with detail correctly deferred to palette.ts/typography.ts. Not 5 because the Layout tree and Core Files table could be consolidated and the components/ directory contents are described nowhere.

Specificity

Lists concrete items ('createMuiTheme factory', 'dark/light palette tokens', 'tss-react/mui styling conventions') but they are capability nouns framed by the vague 'Deep theme system knowledge' rather than concrete actions, matching anchor 3 (domain named with some concrete actions, not comprehensive). It does not reach 4 because nothing is expressed as an action, and not 2 because the items are specific, not generic.

Completeness

The 'what' is clear (MUI theme factory, palettes, typography, color-scheme application, styling conventions), but there is no 'Use when...' or equivalent trigger clause; the rubric guideline caps completeness at 3 for a missing explicit 'when'. Not 4 because the 'when' is entirely absent, not weakly implied.

Trigger Term Quality

Good keyword coverage ('theme', 'palette', 'color-scheme', 'dark/light', 'typography', 'MUI', 'tss-react') that users would plausibly say, but common variations like 'dark mode' or 'colors' are missing. Not 5 because synonyms and looser natural phrasings are absent; not 3 because coverage goes beyond a single domain keyword.

Distinctiveness Conflict Risk

Naming 'createMuiTheme', 'ThemeProvider', and 'tss-react/mui' carves a clear niche unlikely to trigger a wrong skill, though it could overlap with a broader MUI/styling skill. Not 5 because the opening 'Deep theme system knowledge' is generic and 'typography scale' could collide with a general typography skill.