Conciseness

The body is dense and assumes competence — tables, invariants, and routing rules with zero explanations of concepts Claude already knows — but version pins ("Swift 6.4 and watchOS 26+", "watchOS 26+") appear outside any old-patterns/deprecated section and the 9-line "Contents" TOC is trimmable overhead. This matches anchor 4 (efficient, minor instances that could be trimmed) rather than anchor 5's every-token-earns-its-place.

Actionability

Guidance is fully concrete: exact keys (`NSWidgetWantsLocation`, `CLLocationManager.isAuthorizedForWidgetUpdates`), exact API calls (`RelevantIntentManager.shared.updateRelevantIntents`, `.associatedKind(_:)`), a per-signal permission table covering every context factory, and a crisp two-path provider decision rule. Per the rubric's scoring note, an instruction-only skill without inline code is not penalized when the guidance is this actionable; anchor 5 fits since the table and invariants cover the common cases.

Workflow Clarity

The flow (choose a provider → signals/permissions → invariants → testing → review checklist) is coherent, with a checklist and explicit testing verification steps including graceful degradation when authorization is absent. It stops short of anchor 5 because the sections are thematic rather than an explicitly ordered build sequence, and the complete implementation sequence lives in the reference file — anchor 4's "clear sequence with most checkpoints present" is the best fit.

Progressive Disclosure

The ~130-line body is a genuine overview that defers all providers, factories, permissions detail, grouping, and previews to the verified one-level-deep `references/relevancekit-patterns.md`, signaled with a description of its contents and listed again in References. No nested references exist in the bundle, matching anchor 5 (clear overview, well-signaled one-level-deep references, easy navigation).

Specificity

The description lists multiple concrete actions — "providing contextual relevance signals", "declaring time-based or location-based relevance", "combining multiple relevance providers", "routing mixed RelevanceKit/WidgetKit/HealthKit/MapKit Smart Stack scope" — with comprehensive coverage of the skill's domain, matching the anchor-5 example's breadth. It exceeds anchor 4 because no meaningful capability is left uncovered.

Completeness

It explicitly answers both questions: "Increase widget visibility on Apple Watch using RelevanceKit" states what it does, and "Use when providing contextual relevance signals… combining multiple relevance providers… routing mixed… scope" gives concrete trigger phrases for when. This mirrors the anchor-5 example structure exactly; anchor 4's caveat about a less-explicit 'when' does not apply.

Trigger Term Quality

Good natural-term coverage including "Apple Watch", "watchOS widgets", "Smart Stack", "time-based", and "location-based", but a few natural user phrasings such as "widget suggestions" or "widget ranking" are missing. It falls between anchor 4 (good coverage, few terms missing) and anchor 5 (comprehensive synonyms), closer to 4 since synonym coverage is not exhaustive.

Distinctiveness Conflict Risk

The RelevanceKit niche is distinct and the routing clause ("routing mixed RelevanceKit/WidgetKit/HealthKit/MapKit Smart Stack scope") actively disambiguates sibling skills. However, triggers like "widget visibility on Apple Watch" and "Smart Stack" overlap with a closely related WidgetKit skill's territory, matching anchor 4 (mostly distinct, minor overlap risk) rather than anchor 5's minimal conflict risk.