skills

Complete onboarding guide for developers who are new to Detour, the open-source deferred deep linking SDK by Software Mansion. Use this skill whenever a user asks what Detour is, how to get started with Detour, how to set up deep linking with Detour, how to install the Detour SDK, how to configure the Detour dashboard, or how deferred deep linking works. Also use it when the user has no prior deep linking setup and wants to add deep links to their app. Covers everything from zero to production: account setup, dashboard configuration, Universal Links and App Links, platform SDK integration for React Native, iOS, Android, and Flutter, analytics, and architecture.

Use when the user mentions migrating deep links, switching away from Branch or AppsFlyer, replacing their deep linking SDK, setting up Detour deep linking for the first time, or asks how Branch/AppsFlyer concepts map to Detour. Covers the complete migration end to end - Detour Dashboard configuration, Universal Links and App Links setup, SDK swap with code examples, and analytics migration. Works across Android, iOS, React Native, and Flutter.

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, fling, hover, drag, or any touch interaction. Trigger on: 'gesture handler', 'GestureDetector', 'tap gesture', 'pan gesture', 'pinch gesture', 'rotation gesture', 'long press', 'fling', 'hover gesture', 'swipe', 'pinch to zoom', 'drag', 'touch handling', 'Pressable', 'RectButton', 'Swipeable', 'Touchable', 'DrawerLayout', 'VirtualGestureDetector', or any request to handle user touch input in a React Native app.

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.

Node.js / TypeScript server SDK for Fishjam — backends that create rooms, mint peer tokens, listen to server notifications, and run agents. Use when writing a Node.js / Express / Fastify / Hono / NestJS backend that talks to Fishjam, sets up a webhook receiver, runs an AI agent, or generates livestream tokens. Trigger on: '@fishjam-cloud/js-server-sdk', 'FishjamClient', 'FishjamWSNotifier', 'FishjamAgent', 'createPeer', 'createRoom', 'createAgent', 'createVapiAgent', 'createLivestreamStreamerToken', 'createLivestreamViewerToken', 'refreshPeerToken', 'subscribeTracks', 'subscribePeer', 'createMoqToken', 'ServerMessage', 'roomCreated', 'peerAdded', 'trackAdded', 'fishjam backend Node', 'express fishjam', 'fastify fishjam', 'gemini agent fishjam', 'vapi fishjam'. Covers REST, WebSocket notifier, webhook protobuf decoding, FishjamAgent, and Gemini Live integration.

Fishjam platform fundamentals — domain model and auth shared by all SDKs. Covers glossary (room, peer, track, agent, streamer, viewer), the four room types (conference / audio_only / livestream / audio_only_livestream), two-tier auth (management vs peer tokens), Sandbox vs production, WebSocket-vs-webhook notifications and the 18-event taxonomy, REST endpoint list, and the end-to-end auth/join flow. Read this first for any Fishjam task. Trigger on: 'Fishjam', 'fishjam.io', 'fishjam.swmansion.com', 'fishjam dashboard', 'management token', 'peer token', 'sandbox API', 'useSandbox', 'room manager', 'livestream room', 'audio-only room', 'conference room', 'Fishjam ID', 'room types', 'auth flow', 'webhook', 'webhookUrl', 'FishjamWSNotifier', 'FishjamNotifier', 'notifier vs webhook', 'ServerMessage', 'peerAdded', 'peerConnected', 'roomCreated', 'refreshPeerToken', 'rest endpoint', 'OpenAPI', 'llms.txt'.

Python server SDK for Fishjam — backends that create rooms, mint peer tokens, receive server notifications, and run voice agents. Use when writing a Python backend (FastAPI, Flask, Starlette, aiohttp) that talks to Fishjam, decorates a notification handler, decodes a Fishjam webhook, or builds an AI voice agent in Python. Trigger on: 'fishjam-server-sdk', 'pip install fishjam-server-sdk', 'from fishjam import', 'fishjam.FishjamClient', 'FishjamNotifier', 'on_server_notification', 'receive_binary', 'fishjam Agent', 'AgentSession', 'PeerOptions', 'RoomOptions', 'AgentOptions', 'AgentOutputOptions', 'OutgoingAudioTrackOptions', 'create_room', 'create_peer', 'create_agent', 'create_vapi_agent', 'create_livestream_streamer_token', 'create_moq_token', 'subscribe_peer', 'fastapi fishjam', 'flask fishjam', 'fishjam python', 'gemini fishjam python'. Python 3.10+. The REST client is synchronous; notifier and agent are async.

Browser-only React SDK for Fishjam — joining rooms, capturing camera/microphone/screen, displaying peers, and acting as a livestream streamer or viewer in a React web app. Use whenever the user is writing a React app in a browser that calls Fishjam APIs, sets up FishjamProvider, or uses any Fishjam React hook. Trigger on: '@fishjam-cloud/react-client', 'FishjamProvider', 'useConnection', 'useCamera', 'useMicrophone', 'useScreenShare', 'usePeers', 'useDataChannel', 'useVAD', 'useLivestreamStreamer', 'useLivestreamViewer', 'useCustomSource', 'useInitializeDevices', 'useUpdatePeerMetadata', 'useSandbox', 'PeerWithTracks', 'joinRoom', 'peerToken', 'fishjamId', 'fishjam react', '@fishjam-cloud/ts-client', 'FishjamClient ts-client'. Covers the provider, the full hook catalog, simulcast configuration, custom sources, data channels, VAD, livestream WHEP playback, device persistence, and reconnection. Briefly notes when to drop down to @fishjam-cloud/ts-client for non-React or worker contexts.

React Native / Expo SDK for Fishjam — video/audio streaming on iOS and Android. Use when writing a React Native or Expo app that calls Fishjam, configures the Fishjam Expo plugin, sets up permissions, runs background streaming, integrates CallKit, or renders RTCView. Trigger on: '@fishjam-cloud/react-native-client', 'fishjam expo plugin', 'FishjamProvider mobile', 'useCameraPermissions', 'useMicrophonePermissions', 'useForegroundService', 'useCallKit', 'useCallKitEvent', 'useCallKitService', 'RTCView', 'RTCPIPView', 'ScreenCapturePickerView', 'startPIP', 'stopPIP', 'AudioDeviceType', 'useAudioOutput', '@fishjam-cloud/react-native-webrtc', 'fishjam react native', 'expo fishjam', 'fishjam ios', 'fishjam android', 'broadcast extension'. Re-exports @fishjam-cloud/react-client hooks plus mobile-only: permissions, foreground service, iOS broadcast extension, audio routing, CallKit, Expo config plugin.

Software Mansion's Fishjam — hosted WebRTC platform for video, audio, and one-to-many livestreaming. MUST USE before writing, reviewing, or debugging ANY code that talks to a Fishjam instance from a backend (Node, Python) or a client (React web, React Native / Expo). Routes to platform fundamentals and the right SDK sub-skill. Trigger on: 'Fishjam', 'fishjam.io', 'fishjam.swmansion.com', 'fishjam dashboard', 'Fishjam ID', 'management token', 'peer token', 'sandbox API', 'livestream room', '@fishjam-cloud/js-server-sdk', 'fishjam-server-sdk', '@fishjam-cloud/react-client', '@fishjam-cloud/react-native-client', '@fishjam-cloud/ts-client', 'FishjamClient', 'FishjamProvider', 'FishjamNotifier', 'FishjamAgent', 'createPeer', 'createRoom', 'createAgent', 'createLivestreamStreamerToken', 'createMoqToken', 'refreshPeerToken', 'webhook', 'gemini fishjam', 'vapi fishjam', 'fishjam expo plugin'.

Build on-device AI features in React Native and Expo apps with React Native ExecuTorch. Use when adding AI to a mobile app without cloud dependencies — chatbots, image classification, object detection, OCR, semantic or instance segmentation, style transfer, image generation, pose estimation, speech-to-text, text-to-speech, voice activity detection, semantic search with embeddings, tokenization, privacy / PII redaction, or vision-language image understanding. Also use when mentioning offline / on-device / privacy AI, reducing cloud cost or latency, or managing ML models. Covers initExecutorch and every hook (useLLM, useClassification, useObjectDetection, useOCR, useSemanticSegmentation, useInstanceSegmentation, useStyleTransfer, useTextToImage, useImageEmbeddings, usePoseEstimation, useSpeechToText, useTextToSpeech, useVAD, useTextEmbeddings, useTokenizer, usePrivacyFilter, useExecutorchModule), tool calling, structured output, VLMs, Expo and bare resource-fetcher adapters, and error handling.

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'.

React Native JSI (JavaScript Interface) — C++ API for interacting with the JS runtime. Use whenever the user asks about or writes C++ code that touches JSI types or patterns: jsi::Runtime, jsi::Value, jsi::Object, jsi::Function, jsi::Array, jsi::ArrayBuffer, jsi::String, jsi::Symbol, jsi::BigInt, jsi::PropNameID, jsi::HostObject, jsi::HostFunction, jsi::NativeState, jsi::WeakObject, jsi::Scope, JSIException, JSINativeException, JSError, HostFunctionType, createFromHostFunction, getHostObject, setNativeState, evaluateJavaScript, queueMicrotask, drainMicrotasks, setRuntimeData, getRuntimeData, ISerialization, rt.global(), jsi.h, jsi-inl.h, JSI binding, C++ native module, calling JS from C++, calling C++ from JS, HostObject destructor, shared_ptr, CallInvoker, invokeAsync, folly::dynamic with JSI, zero-copy ArrayBuffer, TurboModule C++ layer, Nitro Module, jsi::WithRuntimeDecorator, or any question about the boundary between C++ and the JavaScript engine in React Native.

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.

Software Mansion's guide for migrating Expo SDK apps to Meta Quest using expo-horizon packages. Use when adding Meta Quest or Meta Horizon OS support to an existing Expo or React Native project. Trigger on: Meta Quest, Horizon OS, Quest 2, Quest 3, Quest 3S, VR app, expo-horizon-core, expo-horizon-location, expo-horizon-notifications, build flavors for Quest, panel sizing, VR headtracking, Horizon App ID, quest build variant, isHorizonDevice, isHorizonBuild, migrate expo-location to Quest, migrate expo-notifications to Quest, Meta Horizon Store publishing, or any task involving running an Expo app on Meta Quest hardware.

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.