skills/react-native-best-practices/SKILL.md
Software Mansion's best practices for production React Native and Expo apps on the New Architecture. MUST USE before writing, reviewing, or debugging ANY code in a React Native or Expo project. If the working directory contains a package.json with react-native, expo, or expo-router as a dependency, this skill applies. Trigger on: any code task in a React Native/Expo project, 'React Native', 'Expo', 'New Architecture', 'Reanimated', 'Gesture Handler', 'react-native-svg', 'ExecuTorch', 'react-native-audio-api', 'react-native-enriched', 'Worklet', 'Fabric', 'TurboModule', 'WebGPU', 'react-native-wgpu', 'TypeGPU', 'GPU shader', 'WGSL', 'svg', 'animation', 'gesture', 'audio', 'rich text', 'AI model', 'multithreading', 'chart', 'vector', 'image filter', 'shared value', 'useSharedValue', 'runOnJS', 'scheduleOnRN', 'thread', 'worklet', or any question involving UI, graphics, native modules, or React Native threading and animation behavior. Also use when a more specific sub-skill matches.
npx skillsauth add software-mansion-labs/skills react-native-best-practicesInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
Software Mansion's production patterns for React Native apps on the New Architecture.
Read the relevant sub-skill for the topic at hand. All sub-skills are in references/.
| Sub-skill | When to use |
|-----------|------------|
| references/animations/SKILL.md | CSS transitions, CSS animations, shared value animations, GPU shader animations (WebGPU, TypeGPU), layout animations (entering/exiting, transitions, keyframes), scroll-driven animations, animation functions (withSpring, withTiming, withDecay), core hooks (useSharedValue, useAnimatedStyle), interpolation, particle systems, procedural noise, SDF rendering, animation performance, 120fps, accessibility, Reanimated 4 |
| references/gestures/SKILL.md | Tap, pan, pinch, rotation, swipe, long press, fling, hover, drag, Pressable, RectButton, Swipeable, DrawerLayout, VirtualGestureDetector, gesture composition, gesture testing -- any touch interaction with Gesture Handler |
| references/svg/SKILL.md | Vector graphics, icons, charts, illustrations using React Native SVG |
| references/on-device-ai/SKILL.md | On-device AI: LLMs (chat, tool calling, structured output, vision-language models), computer vision (classification, object detection, OCR, semantic/instance segmentation, style transfer, embeddings, text-to-image), speech processing (STT with timestamps, TTS with phonemes, VAD), VisionCamera real-time frame processing, model loading, resource management, custom models with ExecuTorch |
| references/rich-text/SKILL.md | Rich text editor, formatted text input, WYSIWYG, mentions, Markdown renderer, react-native-enriched, react-native-enriched-markdown |
| references/multithreading/SKILL.md | Multithreading, react-native-worklets, background processing, Worker Runtimes, UI thread, scheduleOnUI, scheduleOnRN, Serializable, Synchronizable, offloading computation from the JS thread |
| references/audio/SKILL.md | Audio playback (buffer sources, oscillators, streaming, queued playback), recording (file, data callback, graph processing), audio effects (gain, filters, delay, convolver, panner, waveshaper), real-time analysis and visualization, audio worklets (custom processing, synthesis), system integration (sessions, interruptions, notifications, permissions), testing with mocks -- any audio feature with react-native-audio-api |
| references/jsi/SKILL.md | JSI, C++ native modules, jsi::Runtime, jsi::Value, jsi::Object, jsi::Function, jsi::HostObject, jsi::HostFunction, jsi::NativeState, jsi::PropNameID, jsi::ArrayBuffer, jsi::WeakObject, jsi::Scope, jsi::BigInt, JSIException, JSError, JSINativeException, calling JS from C++, calling C++ from JS, HostObject destructor constraints, shared_ptrjsi::Value, CallInvoker, invokeAsync, JSI threading safety, zero-copy ArrayBuffer, rt.global(), ISerialization, WithRuntimeDecorator, jsi.h |
development
TypeGPU is type-safe WebGPU in TypeScript. Use whenever the user writes, debugs, or designs TypeGPU code: 'use gpu' shader functions, tgpu.fn, buffers, textures, bind groups, compute and render pipelines, vertex layouts, slots, accessors, and any TypeGPU API. Shader logic and CPU-side resources are tightly coupled - handle both sides here even if the user only mentions one (e.g. "how do I write a shader", "how do I create a buffer"). Trigger on any mention of typegpu, tgpu, "use gpu", TypedGPU, or WebGPU code written using TypeGPU's schema API (d.*, tgpu.*, std.*). Do NOT trigger for raw WebGPU (using GPUDevice/GPURenderPipeline directly without tgpu), WGSL-only questions, Three.js, Babylon.js, or WebGL.
tools
Best practices for integrating and using RNRepo — Software Mansion's infrastructure for pre-built React Native library artifacts that reduces native build times by up to 2×. Use when setting up, configuring, or troubleshooting RNRepo in a React Native or Expo project. Trigger on: 'RNRepo', 'rnrepo', 'slow builds', 'build times', 'prebuilt artifacts', 'prebuilt libraries', '@rnrepo/expo-config-plugin', '@rnrepo/build-tools', 'prebuilds-plugin', 'rnrepo.config.json', 'DISABLE_RNREPO', 'packages.rnrepo.org', 'Maven prebuild', 'CocoaPods prebuild', 'xcframework prebuild', 'prebuild AAR', 'build from source', 'native compilation slow', 'Gradle plugin slow', 'pod install slow', 'CI build times'.
development
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', 'SvgUri', 'SvgXml', 'SvgCss', 'FilterImage', 'SVG filter', or any request to display scalable vector content in a React Native app.
tools
Software Mansion's best practices for rich text in React Native using react-native-enriched and react-native-enriched-markdown. Use when building rich text editors, formatted text inputs, Markdown renderers, or any feature requiring inline styling, mentions, links, structured text editing, or Markdown display. Trigger on: 'rich text editor', 'rich text input', 'text editor', 'react-native-enriched', 'react-native-enriched-markdown', 'EnrichedTextInput', 'EnrichedMarkdownText', 'formatted text input', 'WYSIWYG', 'mentions input', 'text formatting toolbar', 'markdown renderer', 'markdown display', 'render markdown', 'display markdown natively', 'LaTeX math', 'GFM tables', or any request to build rich text editing or Markdown rendering in React Native.