Use when implementing network requests, API calls, data caching, or offline support in React Native or Expo apps, including authentication token management and request lifecycle handling
Use when executing implementation plans with independent tasks in the current session
Use when you have a spec or requirements for a multi-step task, before touching code
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations. Applies to tasks involving Hermes optimization, JS thread blocking, bridge overhead, FlashList, native modules, or debugging jank and frame drops.
Provides an incremental adoption strategy to migrate native iOS or Android apps to React Native or Expo using @callstack/react-native-brownfield for initial setup. Use when planning migration steps, packaging XCFramework/AAR artifacts, and integrating them into host apps.
Software Mansion's best practices for animations in React Native apps built on Reanimated 4 and the New Architecture. Use when writing, reviewing, or debugging animations — including decisions between CSS transitions, CSS animations, and shared value animations; animating text; layout animations; infinite animation cleanup; and performance tuning. Trigger on: 'animation in React Native', 'animate in React Native', 'Reanimated', 'useSharedValue', 'useAnimatedStyle', 'layout animation', 'CSS transition', 'CSS animation', 'withSpring', 'withTiming', 'smooth animation', 'animation performance', or any request to make something move on screen.
Software Mansion's best practices for audio in React Native using react-native-audio-api. Applies correct patterns for AudioContext and AudioRecorder lifecycle, AudioBuffer state management, high-performance audio visualizations, and iOS session configuration. Use when writing or reviewing any audio feature. Trigger on: react-native-audio-api, AudioContext, AudioRecorder, AudioBuffer, AudioNode, audio playback, record audio, microphone, sound effects, music player, waveform, frequency bars, audio visualization, audio analysis, audio session, or any React Native feature that captures or emits sound.