Conciseness

The body is dense, rule-first prose with zero padding: no explanation of what services or Results are, just repo-specific rules like 'no runtime reads of Svelte stores, `settings`, `deviceConfig`'. Every section carries non-obvious, codebase-specific decisions, matching the lean anchor where every token earns its place; there is no over-explanation to justify a 4.

Actionability

Guidance is concrete and executable: a complete `DownloadService` type with the exact Result shape, the actual `services` barrel to extend, exact import specifiers (`#platform/text`, `#platform/tauri`), named files (`$lib/operations/transcribe.ts`), and current real examples ('local shortcut `register` / `unregister` returning `void`'). Combined with the fully-implemented `DownloadServiceLive` code in its reference, the common cases are covered copy-paste-ready; nothing is pseudocode or vague, so the minor-gaps anchor of 4 does not fit.

Workflow Clarity

The body is organized as a coherent traversal — boundary, fallibility, object-vs-factory, platform selection, barrel — ending in an explicit 'Final Check' checklist that serves as a validation checkpoint for the work. This matches the anchor's 'checklists for complex processes'; no destructive or batch operations are involved, so no validation cap applies, and each decision point is unambiguous.

Progressive Disclosure

The ~125-line body keeps principles inline and pushes worked examples to two clearly signaled, one-level-deep references — 'Read [service implementation patterns](references/service-implementation-pattern.md)' and '[service organization and platform variants](references/service-organization-platforms.md)' — both of which exist in the bundle, match their descriptions, and contain no further nesting. Content split and navigation match the clear-overview anchor.

Specificity

The description enumerates six concrete capability areas — 'UI-free capabilities, explicit inputs, Result fallibility, Live objects, lifecycle factories, and platform variants' — which comprehensively cover the skill's scope, matching the anchor for multiple specific concrete items. It is not score 4 because coverage is comprehensive rather than having minor gaps; not below because every listed item is a concrete, checkable pattern rather than generic domain talk.

Completeness

It explicitly answers both questions: the 'what' is 'Apply Whispering service-boundary patterns for UI-free capabilities, explicit inputs, ...' and the 'when' is a concrete trigger clause 'Use when creating or refactoring services, contracts, provider dispatch, or the `$lib/services` barrel'. This matches the anchor for clear, explicit what-and-when with concrete trigger phrases; the neighboring anchor 4 would require a weaker or less specific 'when'.

Trigger Term Quality

The 'Use when' clause supplies good natural triggers — 'creating or refactoring services, contracts, provider dispatch, or the `$lib/services` barrel' — terms a contributor would plausibly say. It falls short of 5 because common variations like 'service layer', 'platform seam', or 'dependency injection' are absent, and jargon terms like 'Result fallibility' and 'Live objects' are less user-natural; it is clearly above 3 because several relevant natural keywords are present, not just 'some'.

Distinctiveness Conflict Risk

The description carves a clear niche — repo-specific service-boundary enforcement anchored to `$lib/services` and `#platform/*` — with triggers unlikely to fire for sibling skills like error-handling or define-errors. It is a distinct, well-bounded trigger set matching the minimal-conflict anchor, not merely 'mostly distinct'.