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From hairyf-skills-4
Build and maintain React Native apps with Expo SDK, EAS Build, EAS Update, and Continuous Native Generation. Use for configuring Expo projects, adding native modules, building binaries, or shipping over-the-air updates.
How this skill is triggered — by the user, by Claude, or both
Slash command
/hairyf-skills-4:react-native-expoThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
> The skill is based on Expo SDK (docs from expo/expo repo), generated at 2026-02-26.
GENERATION.mdreferences/best-practices-common-errors.mdreferences/best-practices-debugging.mdreferences/core-config.mdreferences/core-continuous-native-generation.mdreferences/core-development-mode.mdreferences/core-development-workflow.mdreferences/core-logging.mdreferences/core-metro.mdreferences/features-config-plugins.mdreferences/features-eas-submit.mdreferences/features-eas.mdreferences/features-expo-modules.mdreferences/features-native-modules.mdreferences/features-sdk-constants.mdreferences/features-sdk-filesystem.mdreferences/features-sdk-image.mdreferences/features-sdk-secure-store.mdreferences/features-simulators-emulators.mdreferences/features-updates.mdThe skill is based on Expo SDK (docs from expo/expo repo), generated at 2026-02-26.
Expo provides tooling and services for React Native: app config and Prebuild (Continuous Native Generation), Expo SDK packages, development builds, EAS Build (cloud builds and internal distribution), and EAS Update (over-the-air JS updates). Use development builds for production apps; Expo Go is a limited playground.
| Topic | Description | Reference |
|---|---|---|
| App config | app.json, app.config.js/ts, dynamic config, reading in app | core-config |
| Development workflow | Dev loop, development builds vs Expo Go, when to rebuild | core-development-workflow |
| Development and production modes | DEV, --no-dev --minify, when to use each | core-development-mode |
| Metro | metro.config.js, resolver, transformer, cache, env vars | core-metro |
| Logging | Console in terminal, native logs, log-android / log-ios | core-logging |
| CNG and Prebuild | npx expo prebuild, --clean, EAS Build and native dirs | core-continuous-native-generation |
| Topic | Description | Reference |
|---|---|---|
| Expo SDK and third-party libs | Install with npx expo install, compatibility, config plugins | features-expo-modules |
| expo-constants | App manifest, build info, system constants, extra/env at runtime | features-sdk-constants |
| expo-image | Performant image component, caching, BlurHash/ThumbHash, contentFit | features-sdk-image |
| expo-file-system | File and directory API, Paths.cache/document, read/write, download | features-sdk-filesystem |
| expo-secure-store | Encrypted key-value store, optional biometric auth | features-sdk-secure-store |
| Config plugins | Use and write plugins to modify AndroidManifest, Info.plist during prebuild | features-config-plugins |
| Native modules | Expo Modules API, local module, config plugin for native config, lifecycle | features-native-modules |
| Topic | Description | Reference |
|---|---|---|
| EAS Build | Cloud builds, eas.json profiles, development/preview/production | features-eas |
| EAS Submit | Submit to Google Play and App Store (TestFlight), eas.json, CI | features-eas-submit |
| Topic | Description | Reference |
|---|---|---|
| iOS Simulator and Android emulator | Setup, npx expo start + i/a, limitations, troubleshooting | features-simulators-emulators |
| Topic | Description | Reference |
|---|---|---|
| expo-updates and EAS Update | OTA updates, runtime version, channels | features-updates |
| Upgrading Expo SDK | Incremental upgrade, npx expo install --fix, expo-doctor | features-versioning |
| Topic | Description | Reference |
|---|---|---|
| Debugging | Dev vs production errors, native logs, reproducing crashes | best-practices-debugging |
| Common development errors | Metro, AppRegistry, SDK version, version mismatch, caches | best-practices-common-errors |
npx claudepluginhub hairyf/skillsExpert in Expo for React Native development covering Expo Router, EAS Build, development builds, native module integration, and production deployment.
Expo and React Native patterns for mobile development with EAS Build, SDK integration, and native module configuration. Use when building Expo apps, configuring native features, or setting up app signing for store deployment.
Guides React Native app development and optimization with New Architecture (Fabric, TurboModules), Expo SDK 52+ (Router v4, EAS), Reanimated 3, Gesture Handler v2, FlashList, cross-platform support for web/macOS/Windows/Vision Pro.