Conciseness

The body is dense and prescriptive with zero padding: every line carries project-specific guidance ("A regression test that never demonstrably failed proves the mock, not the fix") and nothing explains concepts Claude already knows. It fully matches the lean, every-token-earns-its-place anchor.

Actionability

Fully executable instruction-only guidance: concrete commands (`pnpm --filter <package> exec vitest --run <path-or-filter>`, `tsx --test <file>`, `--coverage` before/after, `oxfmt`, `git diff --check`, `pnpm test:fast`, `pnpm guard:<name>`, `.changeset/*.md`), a 17-item concrete junk-pattern checklist, and a four-question authoring gate with explicit failure conditions. Copy-paste ready for this codebase.

Workflow Clarity

A clearly sequenced pipeline (authoring gate → junk patterns → value bar → discovery → retention bar → candidate evidence → edit shape → validation → landing → handoff) with explicit checkpoints ("Record every field below before editing. A missing field means the candidate is not ready") and a 7-step numbered validation checklist with feedback loops such as before/after coverage comparison and reproducing baseline failures instead of deleting them. Destructive/batch edits are gated by validation, so no cap applies.

Progressive Disclosure

Against the actual bundle: one well-signaled, one-level-deep reference (`references/campaign.md`, verified to exist and link only back to ../SKILL.md) introduced exactly at the point of need ("before starting one, read [references/campaign.md]"), while shared value-bar, retention, and validation content is correctly kept inline. Clear overview, appropriate split, easy navigation.

Specificity

The description lists several concrete capabilities — "an authoring gate for new tests plus an audit workflow for low-value, implementation-coupled, or duplicative tests and the test-only production seams they keep alive" — matching the anchor for several specific actions with minor gaps. It is not 5 because "Value bar for tests" is abstract framing and the actions are stated as categories rather than fully enumerated; it is clearly above 3 since more than 1-2 concrete actions are named.

Completeness

It explicitly answers both: what ("an authoring gate for new tests plus an audit workflow for low-value, implementation-coupled, or duplicative tests") and when ("Use when writing, changing, reviewing, or pruning tests") with concrete trigger phrases, matching the top anchor exactly.

Trigger Term Quality

"writing, changing, reviewing, or pruning tests" are natural phrases a user would say when they need this skill, giving good keyword coverage. Not 5 because common variations like "deleting tests", "test suite cleanup", or "removing tests" are missing.

Distinctiveness Conflict Risk

The pruning/audit focus on low-value and duplicative tests is a distinct niche, but the write-time triggers ("writing, changing... tests") overlap with the closely related `adding-tests-and-ci` skill named in the body. Minor overlap risk with one closely related skill matches anchor 4; not 5 because that sibling conflict is real rather than minimal.