Conciseness

The body is dense and table-driven with almost no padding of concepts Claude already knows; every section carries concrete content. Minor trimmable redundancy exists (Step 5 guardrails restate the 'Skipping Critical risks' and 'No risks NOT addressed section' anti-pattern rows), placing it at the 'efficient; minor instances of over-explanation that could be trimmed' anchor rather than the fully lean score-5 anchor.

Actionability

Guidance is fully executable: a complete copy-ready markdown document template, a worked example plan ('Promo banner v2'), concrete effort figures ('unit 0.5h, property-based 2h, integration / contract 4h, E2E 8h, load 1d'), and specific numeric thresholds ('~20% headroom', 'Critical (>=15)', 'never plan more than 20% over budget'). Specific examples cover the common cases, matching the top anchor.

Workflow Clarity

Steps 1-5 are clearly sequenced, and Step 1a is an explicit validation gate with assert-style checks ('Assert every in-scope feature... maps to... at least one exit criterion') and a feedback loop ('record it as an open question... resolve it, then re-run this check. Collect the Approval sign-offs only once no Section 11 item still blocks release'). This matches the anchor for clear sequence with explicit validation, feedback loops, and checklists.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are absent), so all content lives in SKILL.md. Section structure is clear and sibling-skill references are plainly listed in a References section, but content that could arguably be split out (the ~110-line document template, the reference-pattern tables) is inlined. This fits the 'good structure; most content is appropriately placed; minor organization gaps' anchor rather than the score-5 anchor requiring well-signaled one-level-deep file references.

Specificity

The description lists multiple concrete actions covering the full document surface: 'covers scope, in/out, test types per layer (unit / integration / contract / E2E / perf / security / a11y), risk-based test prioritization... tooling stack, environments, exit criteria, and ownership', plus a second concrete workflow producing 'a budgeted per-risk test plan with owners, effort estimates, and an explicit risks-not-addressed section'. This matches the anchor for comprehensive coverage of specific concrete actions; it goes beyond the score-4 anchor's 'minor gaps in coverage'.

Completeness

It explicitly answers both 'what' (a detailed enumeration of the document's contents and the planning workflow) and 'when' ('Use when a team needs the release-readiness artifact stakeholders sign off on before significant test investment, or a risk-prioritized test plan for a feature or quarter'), with concrete trigger phrases. This matches the top anchor exactly and is clearly above the score-4 anchor where 'when' could be more explicit.

Trigger Term Quality

Natural trigger terms are present ('test strategy document', 'master test plan', 'release-readiness', 'sign off', 'risk-prioritized test plan'), matching the anchor for good keyword coverage with a few natural terms missing. It falls short of score 5 because common variations users might say ('QA plan', 'test approach', 'coverage plan') are absent.

Distinctiveness Conflict Risk

The description carves a clear niche (strategy/master test plan for a release or quarter) and differentiates from per-feature work, but it explicitly overlaps the sibling 'risk-matrix' skill territory ('risk-based test prioritization... per risk-matrix' and 'risk-based test-planning workflow'), which is minor overlap risk with a closely related skill rather than the minimal conflict risk of score 5.