Lists multiple specific concrete actions: 'application state with Angular Signals', 'computed derivations', and 'NgRx Signal Store'. These are concrete, well-defined capabilities in the Angular ecosystem.

Clearly answers both 'what' (implement application state with Angular Signals, computed derivations, and NgRx Signal Store) and 'when' (explicit 'Use when' clause with specific API triggers and file pattern triggers).

Excellent coverage of natural terms including API names (signal(), computed(), effect(), linkedSignal), package names (@ngrx/signals), file patterns (*.store.ts, **/state/**), and conceptual terms (angular signals, signal store). These match what developers would naturally reference.

Highly distinctive with a clear niche: Angular Signals and NgRx Signal Store. The specific file patterns (*.store.ts), API names (signal(), computed(), effect(), linkedSignal), and framework-specific terms (@ngrx/signals) make it very unlikely to conflict with other skills.

Every line is purposeful and assumes Claude already understands Angular, signals, and reactive programming concepts. No unnecessary explanations of what signals are or how Angular works.

Provides specific API guidance (computed(), linkedSignal(), untracked(), .set(), .update()) and clear rules, but lacks executable code examples. The concrete patterns are deferred to the referenced signal-store.md file rather than shown inline.

This is a pattern/convention skill rather than a multi-step process, so workflow clarity is assessed on whether the guidance is unambiguous. The numbered sections provide a clear progression from basic signals → derived state → scaling → side effects, with explicit anti-patterns serving as guardrails.

The SKILL.md serves as a concise overview with well-signaled, one-level-deep references to signal-store.md for detailed examples. Content is appropriately split between the overview and the reference file.