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Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's…

Use when implementing game animations, player feedback, character movement, or interactive entertainment in Unity, Unreal, or other game engines.

Audit Web Audio API code for sound synthesis best practices. Use when reviewing procedural audio, implementing UI sounds, or checking audio parameter quality.…

Server-driven architecture patterns for Inertia Rails + React. Load this FIRST when building any Inertia page or feature — it routes to the right skill. Decision matrix for data loading, forms, navigation, state management. NEVER useEffect+fetch, NEVER redirect_to for external URLs (use inertia_location), NEVER react-hook-form (use Form component). MUST invoke when adding pages, models with views, CRUD, or displaying data in an Inertia Rails app. ALWAYS `render inertia: { key: value }` to pass data — `@ivars` are NOT auto-passed as props.

Use when ANY beta tester reports a crash, ANY crash appears in Organizer or App Store Connect, crash logs need symbolication, app was killed without crash…

通过减少载荷、缓存策略和压缩技术优化 API 性能。用于提升 API 响应时间、降低带宽消耗…

Builds GraphQL APIs with schema design, resolvers, error handling, and performance optimization using Apollo or Graphene. Use when creating flexible query…

Use when implementing widgets, Live Activities, or Control Center controls - enforces correct patterns for timeline management, data sharing, and extension…

Use when deploying ANY machine learning model on-device, converting models to CoreML, compressing models, or implementing speech-to-text. Covers CoreML…

Use when implementing ANY Apple Intelligence or on-device AI feature. Covers Foundation Models, @Generable, LanguageModelSession, structured output, Tool…

Initialize a new Convex backend from scratch with schema, auth, and basic CRUD operations. Use when starting a new project or adding Convex to an existing app.

Use when overseeing animation vision, setting creative direction for motion, or guiding teams on animation quality and consistency.

使用 Jetpack Compose 构建 Android UI，涵盖基础组件、布局、修饰符、主题以及稳定的组件结构。

Use when implementing BGTaskScheduler, debugging background tasks that never run, understanding why tasks terminate early, or testing background execution -…

subject not detected, hand pose missing landmarks, low confidence observations, Vision performance, coordinate conversion, VisionKit errors, observation nil,…

Use when debugging Foundation Models issues — context exceeded, guardrail violations, slow generation, availability problems, unsupported language, or…

Use when implementing location services, maps, geofencing, or debugging location/MapKit issues. Covers Core Location, CLMonitor, MapKit, annotations,…

Use when the user asks to "write a validator", "add validation", "implement admission control", "write a mutating webhook", "add a mutation handler", "validate…

Use when localizing apps, using String Catalogs, generating type-safe symbols (Xcode 26+), handling plurals, RTL layouts, locale-aware formatting, or migrating…

Build performant, accessible UIs with strict design tokens and reusable widget patterns. Use when implementing layouts, responsive breakpoints, theming, widget…