react-native-hifi

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.

Software Mansion's best practices for gestures in React Native apps using React Native Gesture Handler. Use when implementing tap, pan, pinch, rotation, swipe, long press, or any touch interaction. Trigger on: 'gesture handler', 'GestureDetector', 'tap gesture', 'pan gesture', 'swipe', 'pinch to zoom', 'drag', 'touch handling', or any request to handle user touch input in a React Native app.

Software Mansion's best practices for haptic feedback in React Native apps. Use when adding tactile responses to interactions — button presses, success/error feedback, selections, and custom vibration patterns. Trigger on: 'haptics', 'haptic feedback', 'vibration', 'tactile', 'impactOccurred', 'notificationOccurred', or any request to add physical feedback to touch interactions in a React Native app.

Software Mansion's best practices for multimedia in React Native apps. Use when working with video playback or video streaming. Trigger on: 'video', 'video streaming', 'stream video', 'HLS', 'play video', or any request to play or stream video in a React Native app.

Software Mansion's best practices for multithreading and background processing in React Native apps. Use when offloading heavy computation, running background tasks, using Web Workers, or working with the React Native New Architecture's concurrent features. Trigger on: 'background thread', 'Worklet', 'runOnJS', 'runOnUI', 'heavy computation', 'background processing', 'concurrent', or any request to move work off the JS thread in a React Native app.

Integrate on-device AI into React Native apps using React Native ExecuTorch, which provides APIs for LLMs, computer vision, OCR, audio processing, and embeddings without cloud dependencies, as well as a variety of pre-exported models for common use cases. Use when user asks to build AI features into mobile apps - AI chatbots, image classification, object detection, style transfer, OCR, document parsing, speech processing, or semantic search - all running locally without cloud dependencies. Use when user mentions offline support, privacy, latency or cost concerns in AI-based applications.

Best practices for using Radon IDE's MCP tools when developing, debugging, and inspecting React Native and Expo apps. Use when interacting with a running app through Radon IDE - viewing screenshots, reading logs, inspecting the component tree, debugging network requests, reloading the app, or querying React Native documentation and library info. Trigger on: 'debug React Native', 'fix UI', 'network issues', 'build issues', 'Radon IDE', 'view screenshot', 'app logs', 'component tree', 'network inspector', 'reload app', 'React Native docs', 'library description', 'emulator', 'development viewport', 'view_screenshot', 'view_application_logs', 'view_component_tree', 'reload_application', 'view_network_logs', 'view_network_request_details', 'query_documentation', 'get_library_description', and every request involving live app inspection, debugging or development in a Radon IDE session.

Software Mansion's best practices for rich text editing in React Native apps using react-native-enriched. Use when building rich text editors, formatted text inputs, or any feature requiring inline styling, mentions, links, or structured text editing. Trigger on: 'rich text editor', 'rich text input', 'text editor', 'react-native-enriched', 'EnrichedTextInput', 'formatted text input', 'WYSIWYG', 'mentions input', 'text formatting toolbar', or any request to build a rich text editing experience in React Native.

Software Mansion's best practices for production React Native apps on the New Architecture. Use when writing, reviewing, or debugging React Native code across animations, gestures, SVG, haptics, on-device AI, multimedia, rich text, multithreading, or audio. Trigger on any React Native implementation question or when a more specific sub-skill below matches the task.

Software Mansion's best practices for SVG rendering in React Native apps using React Native SVG. Use when rendering vector graphics, icons, charts, illustrations, or any SVG content. Trigger on: 'react-native-svg', 'SVG', 'vector graphics', 'render icon', 'draw shape', 'chart', 'path', 'Svg component', or any request to display scalable vector content in a React Native app.

Upgrades React Native apps to newer versions by applying rn-diff-purge template diffs, updating package.json dependencies, migrating native iOS and Android configuration, resolving CocoaPods and Gradle changes, and handling breaking API updates. Use when upgrading React Native, bumping RN version, updating from RN 0.x to 0.y, or migrating Expo SDK alongside a React Native upgrade.

Automates interactions for iOS simulators/devices and Android emulators/devices. Use when navigating apps, taking snapshots/screenshots, tapping, typing, scrolling, or extracting UI info on mobile targets.

Use when you have a written implementation plan to execute in a separate session with review checkpoints

Write tests using React Native Testing Library (RNTL) v13 and v14 (`@testing-library/react-native`). Use when writing, reviewing, or fixing React Native component tests. Covers: render, screen, queries (getBy/getAllBy/queryBy/findBy), Jest matchers, userEvent, fireEvent, waitFor, and async patterns. Supports v13 (React 18, sync render) and v14 (React 19+, async render). Triggers on: test files for React Native components, RNTL imports, mentions of "testing library", "write tests", "component tests", or "RNTL".

Use when completing tasks, implementing major features, or before merging to verify work meets requirements

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes

Use when implementing any feature or bugfix, before writing implementation code

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification

Use when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions

Use when creating new skills, editing existing skills, or verifying skills work before deployment

Use when building user interfaces in React Native or Expo, implementing navigation, layouts, animations, native controls, modals, gesture handling, or styling components

Use when building server-side API endpoints in Expo apps, handling backend logic, protecting credentials, connecting to databases, or deploying API routes with EAS Hosting

Use when building custom development clients for Expo apps, integrating custom native modules, using Apple ecosystem features, third-party native SDKs, or when Expo Go limitations are encountered

Use when setting up or using Tailwind CSS v4 with NativeWind v5 in React Native or Expo projects, configuring universal styling across iOS Android and web, or implementing CSS-first theming

Use when building Android-specific UI components using Jetpack Compose views in Expo, implementing LazyColumn scrolling lists, or rendering XML vector drawable icons on Android

Use when building iOS-specific UI components using SwiftUI views in Expo, embedding React Native views in SwiftUI with RNHostView, or implementing native iOS interfaces beyond cross-platform components

Use when embedding web-only libraries or DOM content in React Native apps, including charts with recharts, syntax highlighting, rich text editors, or any component that requires a browser DOM