Conciseness

The body is lean and imperative with no explanations of concepts Claude already knows, but there is minor redundancy: the widget/Live Activity boundary is stated three times (scope-boundary paragraph, a DON'T section, and a checklist item), carplay-patterns.md is linked three times, and the version pin "Swift 6.4, iOS 26+" is time-sensitive information not placed in a deprecated/old-patterns section. This matches "efficient; minor instances that could be trimmed" rather than the fully lean top anchor.

Actionability

Guidance is concrete at the API level — exact delegate signatures ("templateApplicationScene(_:didConnect:to:)" vs. the no-window variant), "setRootTemplate(_:animated:completion:)", "CPNowPlayingTemplate.shared", "CPSessionConfiguration.limitedUserInterfaces", and exact Info.plist keys — with concrete recipes delegated to core-implementation.md. Per the scoring notes an instruction-only skill is not penalized for absent code, but nothing in the body itself is copy-paste ready, placing it at "mostly executable guidance" rather than fully executable.

Workflow Clarity

The Workflow section gives a clearly sequenced five-step process with an explicit verification step ("Verify reconnect, day/night appearance, multiple display sizes, driving restrictions"), and the 17-item Review Checklist provides checkpoints for the complex process — matching the anchor requiring explicit validation steps and checklists. No destructive or batch operations are involved, so the feedback-loop cap does not apply.

Progressive Disclosure

The entrypoint is a genuine overview with implementation detail split into two real, one-level-deep reference files, each clearly signaled with its content scope in both "Route by Task" and the annotated References section; the reference files contain no further nested references, and a Contents TOC aids navigation.

Specificity

"Builds eligible CarPlay navigation, audio, communication, EV charging, parking, or ordering apps with template scenes" plus "entitlements, scene delegates, interface-controller hierarchies, lists, maps, Now Playing, dashboard displays, or CarPlay Simulator verification" lists multiple concrete capabilities with comprehensive coverage across app categories and technical surfaces, matching the top anchor; a 4 would require minor coverage gaps that are not evident.

Completeness

It explicitly answers both questions: the "what" ("Builds eligible CarPlay ... apps with template scenes") and the "when" ("Use for entitlements, ... or CarPlay Simulator verification") with concrete trigger phrases, and uses third person ("Builds"), so no cap or penalty applies.

Trigger Term Quality

Natural terms a developer would actually say — "CarPlay", "entitlements", "scene delegates", "lists", "maps", "Now Playing", "dashboard displays", "CarPlay Simulator" — comprehensively cover the domain's trigger vocabulary, matching the comprehensive-coverage anchor rather than the "a few natural terms missing" anchor at 4.

Distinctiveness Conflict Risk

A clear niche (category-entitled CarPlay template apps) with distinct triggers like "Now Playing", "CarPlay Simulator", and "interface-controller"; it would not collide with adjacent skills such as WidgetKit/ActivityKit or general iOS development.