Conciseness

The body is dense, imperative, and restricted to project-specific conventions Claude cannot infer (wrapper choices, sheet patterns, repo search commands), assuming SwiftUI competence throughout. It falls short of the 5-anchor only because of minor trimmable material: the long iOS 16 fallback sentence and step 6's paragraph packing build validation, preview-crash recovery, and common compile errors into one block.

Actionability

Guidance is concrete and API-level — ".sheet(item:) over .sheet(isPresented:)", "rg \"TabView\\(\"", a scenario-to-wrapper decision table, and named AppTab/RouterPath skeletons — clearly above the incomplete 3-anchor. It does not reach the 5-anchor because SKILL.md itself contains no copy-paste code, deferring code to reference files.

Workflow Clarity

The 6-step "Workflow for a new SwiftUI view" is clearly sequenced with an explicit mid-course gate ("Build and verify no compiler errors before proceeding") and a validate→fix→rebuild feedback loop ("If the build fails: read the error message carefully, fix the identified issue, then rebuild"), plus preview-crash isolation recovery — matching the 5-anchor, not the 4-anchor's 'minor validation gaps'.

Progressive Disclosure

The body is an overview that pushes all detail to a verified one-level-deep bundle: every references/*.md path cited exists, components-index.md serves as a real entry point with per-entry when-to-use lines, and each inline pointer states its topic. This matches the 5-anchor exactly.

Specificity

"Build and refactor SwiftUI UI with component patterns and examples" names the domain with exactly two concrete actions (build, refactor), matching the 1-2-actions anchor; the 4-anchor expects several distinct listed actions, which this lacks.

Completeness

It explicitly answers both "what" ("Build and refactor SwiftUI UI with component patterns and examples") and "when" ("Use when shaping navigation, state, layouts, controls, or screen composition") with concrete trigger phrases, matching the 5-anchor rather than the 4-anchor where the 'when' is only present but less explicit.

Trigger Term Quality

"Use when shaping navigation, state, layouts, controls, or screen composition" provides good natural-keyword coverage, but common user phrasings like "views", "screens", "Swift", or "iOS" are missing, so it falls short of the 5-anchor's synonym/extension coverage.

Distinctiveness Conflict Risk

"SwiftUI UI" with component-pattern triggers carves out a clear niche with minimal overlap risk; unlike the 4-anchor's "minor overlap risk with closely related skills," no generic wording here would pull in non-SwiftUI skills.