Conciseness

The body is largely lean and assumes Claude's competence, delegating pattern lists to external rules files rather than restating them, though a few checklist items carry slightly more explanatory framing than strictly necessary.

Actionability

Highly executable guidance throughout: concrete grep/eslint commands with exact flags (e.g. `npx eslint --max-warnings 0 <file>`, `grep -nE "as unknown as " <file>`), exact file paths to read, and specific fix recommendations tied to rules files.

Workflow Clarity

Clear sequenced workflow (Setup -> per-file Checklist -> Output format) with explicit weighting guidance on what to lead with, a 'report ONLY items that fail' constraint, and per-file reporting structure; the destructive/batch cap does not apply since this is a read-only review.

Progressive Disclosure

Clean overview structure that explicitly defers detailed pattern lists to one-level-deep external rules files (`.claude/rules/vitest-tests.md`, `vitest-rtl.md`, the builder JSDoc) with a stated anti-drift rationale, and no nested references.

Specificity

Names the domain (Vitest test files) and concrete actions (reviewing for quality against builder pattern, RTL patterns, conventions) with file extensions (.vitest.ts/.tsx), but is a single bundled action rather than a list of several distinct capabilities.

Completeness

Clearly answers 'what' (reviewing Vitest test files for quality against named patterns) and 'when' (opens with an explicit 'Use when...' clause), plus a concrete negative boundary ('Not for e2e or Playwright tests').

Trigger Term Quality

Includes natural terms like 'reviewing Vitest test files', file extensions '.vitest.ts/.tsx', and explicit anti-triggers ('e2e or Playwright tests'), but lacks synonyms a user might naturally say like 'unit tests' or 'test quality'.

Distinctiveness Conflict Risk

A clear niche (Vitest .vitest.ts/.tsx reviews tied to Positron's specific patterns) with an explicit exclusion of e2e/Playwright tests, minimizing overlap with sibling test skills.