callstack

Verify and debug native, React Native, Expo, or Flutter apps on an Android Emulator with agent-device. Use when an agent needs to launch an app, inspect its live UI, tap, type, scroll, validate a code change, collect failure evidence, or reproduce a workflow…

Verify and debug native, React Native, Expo, or Flutter apps on an iOS Simulator with agent-device. Use when an agent needs to launch an app, inspect its live UI, tap, type, scroll, validate a code change, collect failure evidence, or reproduce a workflow on…

Automates Apple-platform apps (iOS, tvOS, macOS), Android devices, and Amazon Vega OS TV apps in Vega Virtual Devices. Use when navigating apps, taking snapshots/screenshots where supported, driving TV remotes, tapping, typing, scrolling, extracting UI info,…

Systematically explore and test a mobile app on iOS/Android with agent-device to find bugs, UX issues, and other problems. Use when asked to dogfood, QA, exploratory test, find issues, bug hunt, or test this app on mobile.

Route React Native calls to existing native screens through a generated Brownfield navigation contract.

Provides guidance for shared state in React Native brownfield apps with @callstack/brownie. Define stores in TypeScript, run brownfield codegen, use the generated APIs in React Native and native hosts, and package native artifacts for integration.

Maestro mobile E2E testing for React Native and Expo apps. Use when Codex needs to write, review, debug, or run Maestro YAML flows; add stable testID selectors; handle mobile auth state, OTP or magic-link flows, optimistic updates, native dialogs,…

Use when upgrading react-native to a newer version. Handles version bumps, native project changes (Android/iOS), dependency updates, and breaking change migration. Invoke with `/upgrade-react-native <version>`.