Conciseness

Rule statements are dense and imperative with no basic-concept padding, but nearly every guideline appears three times across the Workflow Decision Tree, Core Guidelines, and Review Checklist (e.g., "@State properties are private" / "@State must be private"; "Button used instead of onTapGesture" in workflow, core, and checklist). Fits anchor 3 'mostly efficient but could be tightened'; not 2 because nothing explains concepts Claude already knows, and the repetition is at least partially purposeful (checklists for review mode).

Actionability

Concrete, executable guidance throughout: a property-wrapper selection table, specific modifiers (".animation(_:value:)", "glassEffectID with @Namespace"), a working #available fallback snippet, and "Self._logChanges()" for debugging. Not 5 because the Liquid Glass examples use placeholder views (GlassButton1(), GlassButton2()) and most guidance is rules rather than copy-paste-ready code; not 3 because the guidance is specific and directly executable, not pseudocode.

Workflow Clarity

Three clearly sequenced workflows (review / improve / implement) each with an explicit prioritized first step ("First, consult references/latest-apis.md") and a supporting review checklist. Not 5 because there are no explicit validation checkpoints or error-recovery loops (e.g., what to do when a deprecated API has no modern equivalent); not 3 because the sequence is complete and checkpoints are present via the checklist, and the destructive/batch cap does not apply since these are code authoring/review tasks.

Progressive Disclosure

SKILL.md is a genuine overview: all detail lives in 14 one-level-deep reference files that all exist in the bundle, each clearly signaled inline ("see references/state-management.md") with one-line descriptions in a dedicated References section, plus a required-reading marker for latest-apis.md. Matches the score-5 anchor (clear overview, well-signaled one-level references, easy navigation); not 4 because no organization gaps were found — every reference path resolves to a real file.

Specificity

Lists several concrete actions ("Write, review, or improve SwiftUI code") and four specific focus areas ("state management, view composition, performance, and iOS 26+ Liquid Glass adoption"). Not 5 because coverage has gaps (accessibility, navigation, lists not mentioned); not 3 because it goes well beyond 1-2 actions and names multiple concrete capability areas.

Completeness

Explicitly answers both: what ("Write, review, or improve SwiftUI code following best practices for state management, view composition, performance, and iOS 26+ Liquid Glass adoption") and when ("Use when building new SwiftUI features, refactoring existing views, reviewing code quality, or adopting modern SwiftUI patterns") with concrete trigger phrases. Matches the score-5 anchor; score 4's 'when could be more explicit' does not apply since the when clause lists four specific triggers.

Trigger Term Quality

Good natural-phrase coverage: "building new SwiftUI features", "refactoring existing views", "reviewing code quality", "adopting modern SwiftUI patterns" — phrases users would plausibly say. Not 5 because some common variations are missing (e.g., ".swift", "Swift UI", "iOS app UI", "UIKit migration"); not 3 because the terms present are natural user phrasings, not jargon.

Distinctiveness Conflict Risk

Clear niche (SwiftUI, iOS 26+ Liquid Glass) with distinct triggers; unlikely to fire for non-SwiftUI work. Overlap risk with a generic Swift skill is minor, which matches the score-4 anchor better than 5 only if a sibling Swift skill existed; the description's tight SwiftUI scoping and explicit triggers give minimal conflict risk, but 'SwiftUI code' review/improve could overlap with a general code-review skill, so 4 is the safer best fit per anti-drift.