Conciseness

The body is mostly efficient but could be tightened: the 'annotation-silent / AVI_SCORE' narrative is explained at length in five places (the five-questions section, Phase 0.5, Phase 4.5, Phase 5, Fallback Strategies), and lines like 'H3K27ac signals active enhancers and active promoters; H3K4me1 alone marks poised enhancers' re-teach histone-mark basics Claude already knows. It is not 2 because there is no library-installation-style padding and most sections (phase descriptions, fallbacks, limitations) earn their tokens.

Actionability

Guidance is mostly concrete and executable: exact tool names with parameters ('gwas_search_associations ... Use p_value=5e-8'), parameter gotchas ('param is variant_id, not rsid', 'Use assay_title="TF ChIP-seq" (not just "ChIP-seq")'), and window limits ('≤500 bp', 'up to 1 Mb'). It is not 5 because the worked examples use placeholder arguments (chromosome=..., position=...) rather than fully specified calls, leaving minor gaps.

Workflow Clarity

The phased workflow (0 through 6) is clearly sequenced with explicit entry conditions and error-recovery feedback loops: Phase 4.5 runs 'when either condition holds: (a) Phases 1-4 came back empty or weak ... or (b) Phase 0.5's AVI_SCORE was high', and the Fallback Strategies section gives per-tool recovery actions for empty results (e.g., 'GWAS Catalog returns empty: Switch from free-text disease_trait to efo_id'). Not 4 because checkpoints are explicit rather than implicit, and Phase 5 provides a graded decision checklist.

Progressive Disclosure

Sections are clearly headed and navigable, but the skill is a single ~280-line file with no references/ bundle; content that clearly belongs in separate files is inlined (four full example workflows, per-tool parameter details). It is not 2 because the inlined material is well-sectioned, not a monolithic reference dump; it is not 4 because the examples and tool specifics could be split into one-level-deep reference files that do not exist.

Specificity

The description lists multiple specific concrete actions — 'GWAS association lookup, eQTL evidence (GTEx), chromatin state (ENCODE), regulatory variant scoring (RegulomeDB, CADD), TF-binding disruption, and sequence-based deep-learning prediction (AlphaGenome/AlphaGenome Atlas)' — each backed by named tools, matching the comprehensive-coverage anchor. It is not score 4 because coverage spans the full capability set with no minor gaps.

Completeness

It explicitly answers both questions: 'what' via the detailed capability list and 'when' via the concrete trigger clause 'Use for non-coding GWAS hit interpretation, eQTL-based gene assignment, and regulatory mechanism reasoning.' Both are explicit with concrete trigger phrases, matching the top anchor; not 4 because the 'when' clause is not merely present but specific and multi-scenario.

Trigger Term Quality

Good keyword coverage including natural domain terms users would say ('non-coding GWAS hit', 'eQTL-based gene assignment', 'regulatory variant', 'GWAS association') plus tool synonyms (GTEx, ENCODE, RegulomeDB, CADD, AlphaGenome). A few natural trigger terms are missing (e.g., 'enhancer', 'promoter', 'intronic variant', 'fine-mapping'), so it does not reach the comprehensive-with-synonyms anchor of 5.

Distinctiveness Conflict Risk

It carves a clear niche (non-coding/regulatory variant interpretation) and explicitly states the boundary — 'Distinct from coding-variant tools' — which minimizes conflict risk with the sibling coding-variant skills. Clear niche with distinct triggers matches the 5 anchor.