Conciseness

The body is dense, skill-specific rule-making with no padding of concepts Claude already knows. A few sentences state one rule twice (e.g., 'Search snippets are discovery aids; read the supporting passage before treating its claim as verified. A successful page open without useful body text is not verification') and could be tightened, so it sits just below the lean top anchor.

Actionability

For an instruction-only skill the guidance is fully executable: an exact claim-ledger field list ('claim, source URL or supplied filename, source type, event date… observation date, and limitations'), a four-way labeling scheme, a six-step experiment structure ('observation → hypothesis → small test → effort/cost dependencies → success measure → stop/review point'), an explicit stopping rule ('two targeted search passes'), and a worked example request.

Workflow Clarity

A clear four-phase sequence (scope and evidence route → gather → analyze → deliver) with explicit verification checkpoints and error-recovery paths: verify snippets against the supporting passage, 'If the passage is inaccessible, attribute the snippet and lower confidence', 'When sources conflict, show the conflict', and a stop condition after two fruitless search passes.

Progressive Disclosure

The body stays an overview and appropriately delegates detail to two real, one-level-deep bundle files — references/evidence.md ('Read before interpreting growth claims') and references/report-template.md — each signaled with its purpose at the point of use, with no nesting and easy navigation.

Specificity

The description names several concrete actions and targets — 'Research competitor products, launch history, and acquisition evidence from public sources or supplied materials' and 'Produces a cited brief that separates observations, attributed claims, estimates, and hypotheses' — with a defined output artifact. It falls just short of the top anchor's comprehensive list of distinct actions, since the work reduces largely to one verb ('research') applied to multiple objects plus one deliverable.

Completeness

It explicitly answers both questions: the 'what' (researches competitor products, launch history, and acquisition evidence; 'Produces a cited brief') and the 'when' via an explicit 'Use when…' clause with three concrete triggers. This matches the top anchor: both what and when clearly and explicitly stated with concrete trigger phrases.

Trigger Term Quality

'Use when evaluating growth claims, comparing competitors, or choosing growth experiments' supplies natural phrases users would actually say, alongside 'competitor products', 'launch history', and 'acquisition evidence'. Common synonyms such as 'competitive analysis' or 'market research' are missing, keeping it below the comprehensive top anchor.

Distinctiveness Conflict Risk

The niche is clear — cited competitor/growth research separating evidence tiers — and triggers like 'growth experiments' are unlikely to fire for unrelated skills. Minor overlap risk remains with generic web-research or market-research skills, so it does not reach the minimal-conflict top anchor.