Agent skill · software engineering · sickn33
expo-dev-client
Build Expo app for development
Why this skill is useful
Provides specific commands and configurations for building custom Expo development clients that the AI wouldn't reliably generate on its own.
What it needs
Requires adb, eas-cli, ideviceinstaller, xcode installed locally. About 3k tokens when loaded. Last updated 2026-08-07. 44,571 stars on the source repository.
What this skill does
Use EAS Build to create development clients for testing native code changes on physical devices. Use this for creating custom Expo Go clients for testing branches of your app. Important: When Development Clients Are Needed Development clients are the recommended setup for any real or production app. Expo Go is a playground for learning and quick experiments with the native libraries it bundles; most apps outgrow it and move to a development client. See Expo Go vs. development builds for the full reasoning. You need a dev client ONLY when using: Local Expo modules (custom native code) Apple targets (widgets, app clips, extensions) Third-party native modules not in Expo Go Config plugins, or testing remote push notifications and App/Universal Links EAS Configuration Ensure eas.json has a development profile: Key settings: developmentClient: true - Bundles expo-dev-client for development builds autoIncrement: true - Automatically increments build numbers appVersionSource: "remote" - Uses EAS as the source of truth for version numbers Building for TestFlight Build iOS dev client and submit to TestFlight in one command: This will: 1. Build the development client in the cloud 2. Automatically submit to App Store Connect 3. Send you an email when the build is ready in TestFlight After receiving the TestFlight email: 1. Download the build from TestFlight on your device 2. Launch the app to see the expo-dev-client UI 3. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills sickn33/expo-dev-client--04854f