Mostly efficient — it does not explain concepts Claude already knows and the audit table is dense and useful — but the opening ("You make apps feel inevitable — like no other design was ever possible. If a user needs to think about how to use it, you've failed") is evocative motivational padding that could be tightened. Matches the score-2 anchor (mostly efficient, some unnecessary prose) rather than the lean score-3 anchor.

Provides concrete, executable guidance for an instruction-only skill: a 15-dimension audit checklist, a four-question Reduction Filter, a phased output structure, explicit rules ("All values must reference DESIGN_SYSTEM tokens — no hardcoded colors"), and a copy-paste flagging template. Matches the score-3 concrete-guidance anchor; absence of code is fine for an instruction skill.

The Audit Protocol is a clear four-step sequence (Full Audit → Reduction Filter → Compile Plan → Wait for Approval) with explicit review checkpoints ("After each phase: present results for review before moving to the next"; "If the result doesn't feel right... propose refinement"). Matches the score-3 anchor with explicit feedback loops; the skill is non-destructive so missing destructive-validation is not penalized.

Sections are well-organized and references are clearly signaled ("Reference files (read as needed): references/design-principles.md, references/audit-template.md"), but those referenced files do not exist — no references/ directory is present in the bundle. Per the guideline to score against actual bundle structure, the signaled one-level-deep references do not resolve, so it does not reach the score-3 anchor.

Lists multiple concrete actions — "Conducts systematic visual audits of existing apps and produces phased, implementation-ready design plans" plus audit, improve visual design, review consistency, fix hierarchy, refine spacing/typography/color. Matches the score-3 anchor listing multiple specific concrete actions rather than the single-action score-2 anchor.

Explicitly states both what ("Conducts systematic visual audits... produces phased, implementation-ready design plans") and when ("Use this skill whenever the user asks to audit a UI...") with explicit triggers, matching the score-3 anchor; not the score-2 anchor where "when" is only implied.

Covers natural user phrasings — "design review", "make it look better", "UI polish", "visual refinement", "design pass", "audit the design" — alongside functional triggers like fixing hierarchy or refining spacing/typography/color. Good coverage of terms users would actually say, matching the score-3 anchor.

Carves a clear niche — purely visual UI/UX audit — and explicitly excludes functionality/logic/features ("This skill is purely visual — it does not touch functionality"), making conflict with other skills unlikely. Matches the score-3 clear-niche anchor.