Conciseness

The body is lean and assumes Claude's competence — no explanations of what genes, diseases, or pathways are, no padded prose; every section (lane taxonomy, entity→skill maps, subagent guidance, output contract) earns its place with scannable lists.

Actionability

For an instruction-only orchestration skill the guidance is concrete and specific: named downstream skills per entity type, ready-made skill sets per task type (e.g. "clinvar-variation-skill, gnomad-graphql-skill, ensembl-skill" for variant interpretation), bounded subagent objectives, and a structured output contract covering common cases.

Workflow Clarity

A clear 5-step sequence (understand → normalize → select → gather → synthesize) is present with one explicit gate ("Do not start broad evidence collection until the important entities are stable"), but there is no validate-then-retry feedback loop, so it stops short of the score-5 anchor; not capped at 3 because routing is not a destructive or batch operation.

Progressive Disclosure

No bundle files exist and the body is well-organized into clearly headed sections with no deep nesting or buried references, but it is a single self-contained ~100-line file (over the 50-line simple-skill threshold) with inline skill catalogs that could arguably live in a reference, leaving minor organization gaps rather than the clean file-split structure of the score-5 anchor.

Specificity

Lists multiple concrete actions — "Route ... requests to the right skills", "normalize core entities", "parallelize independent evidence gathering with subagents", and "synthesize a concise evidence-backed answer" — giving comprehensive coverage of what the router does, matching the score-5 anchor of multiple specific concrete actions.

Completeness

Explicitly answers both "what" (route, normalize, parallelize, synthesize) and "when" ("Use when a user asks a general life-sciences question that could span multiple sources or analysis types") with concrete trigger phrases, matching the score-5 anchor.

Trigger Term Quality

Includes natural triggers like "general life-sciences question" and "span multiple sources or analysis types", which are above the generic single-keyword level, but it lacks the domain-specific synonyms (gene, disease, variant) that appear only in the body, leaving a few natural terms missing.

Distinctiveness Conflict Risk

The "broad or ambiguous" / "span multiple sources" framing carves a clear niche distinct from narrow single-source skills, but "general life-sciences question" still risks minor overlap with the many specific life-sciences skills it routes to, so it sits at mostly-distinct rather than minimal-conflict.