Conciseness

Mostly efficient — no padding explaining concepts Claude already knows — but several rules are stated two or three times: the DESeq2/limma rule appears in Step 7 ("count data → DESeq2 preferred") and again verbatim in Hard Rule 11; "Never fabricate" appears in Step 3.5, Hard Rule 8, and "What This Skill Should Not Do"; the "What This Skill Should Not Do" section largely restates the out-of-scope list and hard rules. Not 4 because the duplication is more than minor trims; not 2 because there is no conceptual over-explanation.

Actionability

For an instruction-only skill the guidance is fully actionable: a pattern-selection table with concrete "When to Use" conditions, numeric retrieval minimums ("2–4 gap-background / disease-context references", "1–2 core method / design-support references"), a copy-paste redirect template with [restatement] placeholders, concrete method mappings, and a fully specified A–J output skeleton with per-section content definitions.

Workflow Clarity

"Execution — 7 Steps (always run in order)" gives an explicit sequence, Step 4 is a mandatory pre-output validation checklist ("Does the proposed study directly answer the stated gap, or did it drift into a generic workflow?"), and there is an explicit feedback loop ("If any inconsistency is found, revise the plan before outputting") — matching the anchor-5 'explicit validation steps; feedback loops; checklists' example.

Progressive Disclosure

The body is an overview that splits detail across nine reference files, each signaled at its point of use with a "→ ...: [references/...](references/...)" pointer (e.g., "→ Detailed pattern logic: references/gap-to-design-patterns.md"). All nine referenced files exist in references/ and none contain nested references, so navigation is one level deep — matching the anchor-5 structure.

Specificity

"Converts an audited medical research gap into a complete, structured, gap-traceable study design" plus the outputs list ("one recommended primary protocol, a gap-to-design dependency map, step-by-step workflow, figure plan, validation strategy, minimal executable version, publication upgrade path") matches the anchor-5 comprehensive concrete-actions example. However, the trailing sentences "Preserve claim-evidence discipline and do not replace a topic-specific gap with a generic workflow" shift from third-person capability description to imperative (implied second person), which the guidelines penalize by 1. Not 3 because the action coverage itself is comprehensive, not merely '1-2 concrete actions'.

Completeness

What: "Converts an audited medical research gap into a complete, structured, gap-traceable study design" with a full outputs enumeration. When: "Always use this skill whenever a user already has one or more candidate research gaps and wants to transform them into an executable biomedical research plan rather than re-run broad topic ideation" — an explicit 'Use when' clause with concrete trigger conditions, matching the anchor-5 example structure exactly.

Trigger Term Quality

Natural phrases users would say are present — "research gap", "candidate research gaps", "study design", "executable biomedical research plan" — but the pattern enumeration ("evidence-completion, mechanism-resolution, cell-state/context-mapping, translation-bridge, causality-upgrade, population/stage-specific") is skill-internal jargon no user would utter, and common phrasings like "design a study", "study protocol", or "research proposal" are absent. Not 3 (key terms are well covered, not just 'some relevant keywords'); not 5 (synonym coverage is thin).

Distinctiveness Conflict Risk

Clear niche: post-gap-discovery study planning, explicitly delimited against adjacent skills via "rather than re-run broad topic ideation". Triggers ("candidate research gaps", "transform them into an executable biomedical research plan") are unlikely to fire for gap-discovery, literature-review, or clinical skills, matching the anchor-5 'clear niche with distinct triggers'.