Conciseness

The body contains almost no filler — every line is non-obvious expert guidance (e.g. the `WindowGroup(..., id:)` vs `Window(...)` launch distinction, the 30-char menu item cap) — but the same rules are restated repeatedly: sidebar/custom-background guidance appears in General Rules twice (lines 65-66 and 70) and again as three separate anti-patterns, the 30-char MenuBarExtra rule appears at lines 63 and 110, the Window/WindowGroup rule at lines 22 and 109, and the no-hardcoded-white rule at lines 28, 65, and 112. That is 'mostly efficient but could be tightened' (3) rather than noticeably padded (2) because the duplicated material is dense guidance, not explanation of concepts Claude already knows.

Actionability

Guidance is highly concrete and executable: exact shell commands (`git rev-parse --is-inside-work-tree`), exact API calls (`NSApp.setActivationPolicy(.regular)`, `@SceneStorage`, `@AppStorage`), a prescriptive file tree (`App/`, `Views/`, `Models/`, `Stores/`, `Services/`, `Support/`), a precise 50-line single-file threshold, and a lookup table mapping state scenarios to specific wrappers. It falls short of fully copy-paste-ready (5) because it defers to external skills not in the bundle ('use the exact bootstrap contract from the `macos-build-run-debug` skill') and offers no inline code snippet, relying on the reference files for examples.

Workflow Clarity

There is a clear 7-step 'Workflow For A New macOS Scene Or View' that ends with explicit validation ('Validate the flow with a build and a quick usability pass: multiwindow assumptions, settings entry points, and selection stability'), plus a Pre-Edit Checklist that front-loads sequencing. This is 'clear sequence with most checkpoints present' (4) rather than 5 because there is no error-recovery loop around the build step (what to do when the build fails) and the two quick-start tracks are partially overlapping with the workflow and checklist rather than one canonical sequence.

Progressive Disclosure

The body is a true overview: all six referenced files exist in the bundle, each is listed in 'Cross-Cutting References' with a one-line scope description, navigation is one level deep, and a designated entry point (`references/components-index.md`) is named both in Quick Start and in a dedicated section. Detail (code examples, per-component guidance) is pushed into the reference files, and the inline material (rules, table, anti-patterns) is appropriately overview-level, matching the top anchor.

Specificity

The description names the domain ('macOS SwiftUI scenes and components') but rests on a single generic action verb — 'Build ... with desktop patterns' — rather than listing several concrete capabilities, matching the 'names domain and 1-2 concrete actions, but not comprehensive' anchor. It is not score 4 because no additional specific actions (e.g., wire commands, scaffold settings scenes, structure split views) are enumerated.

Completeness

It explicitly answers both parts: 'what' — 'Build macOS SwiftUI scenes and components with desktop patterns' — and 'when' — an explicit 'Use when' clause with six concrete trigger phrases. This matches the top anchor for a clear what AND when with concrete trigger phrases; nothing is merely implied.

Trigger Term Quality

'Use when shaping windows, commands, toolbars, settings, split views, or inspectors' supplies six natural trigger terms a user would plausibly say, plus 'macOS' and 'SwiftUI'. It falls short of the comprehensive anchor (5) because common synonyms users say are absent — e.g. 'menu bar', 'sidebar', 'menus', 'keyboard shortcuts', 'app scaffold'.

Distinctiveness Conflict Risk

The niche is clear — macOS desktop SwiftUI patterns — and every trigger term (windows, toolbars, settings, split views, inspectors) is desktop-specific, minimizing overlap with generic SwiftUI, iOS, or AppKit-focused skills. It sits above the 'minor overlap risk' (4) anchor because the desktop-only trigger vocabulary leaves little ambiguity.