// GitHub Actions workflow patterns for React Native iOS simulator and Android emulator cloud builds with downloadable artifacts. Use when setting up CI build pipelines or downloading GitHub Actions artifacts via gh CLI and GitHub API.
Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations. Applies to tasks involving Hermes optimization, JS thread blocking, bridge overhead, FlashList, native modules, or debugging jank and frame drops.
Provides an incremental adoption strategy to migrate native iOS or Android apps to React Native or Expo using @callstack/react-native-brownfield for initial setup. Use when planning migration steps, packaging XCFramework/AAR artifacts, and integrating them into host apps.
Upgrades React Native apps to newer versions by applying rn-diff-purge template diffs, updating package.json dependencies, migrating native iOS and Android configuration, resolving CocoaPods and Gradle changes, and handling breaking API updates. Use when upgrading React Native, bumping RN version, updating from RN 0.x to 0.y, or migrating Expo SDK alongside a React Native upgrade.
Automates interactions for Apple-platform apps (iOS, tvOS, macOS) and Android devices. Use when navigating apps, taking snapshots/screenshots, tapping, typing, scrolling, or extracting UI info across mobile, TV, and desktop targets.
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. Produces a structured report with reproducible evidence: screenshots, optional repro videos, and detailed steps for every issue.
GitHub patterns using gh CLI for pull requests, stacked PRs, code review, branching strategies, and repository automation. Use when working with GitHub PRs, merging strategies, or repository management tasks.
| name | github-actions |
| description | GitHub Actions workflow patterns for React Native iOS simulator and Android emulator cloud builds with downloadable artifacts. Use when setting up CI build pipelines or downloading GitHub Actions artifacts via gh CLI and GitHub API. |
| license | MIT |
| metadata | {"author":"Callstack","tags":"github-actions, github, ci, react-native, ios, android, simulator, emulator, artifacts, gh-cli"} |
Reusable GitHub Actions patterns to build React Native apps for iOS simulators and Android emulators in the cloud, then publish artifacts retrievable via gh CLI or GitHub API.
Use this skill when:
gh or REST API..github/workflows/mobile-build.yml from gha-workflow-and-downloads.md.actions/upload-artifact@v4 and capture artifact-id output.gh run download or GET /repos/{owner}/{repo}/actions/artifacts/{artifact_id}/{archive_format}.| File | Description |
|---|---|
| gha-ios-composite-action.md | Composite action.yml for iOS simulator .app.tar.gz builds and artifact upload |
| gha-android-composite-action.md | Composite action.yml for Android emulator .apk builds and artifact upload |
| gha-workflow-and-downloads.md | End-to-end workflow wiring plus gh and REST download commands |
| Problem | Start With |
|---|---|
Need CI iOS simulator .app.tar.gz artifact | gha-ios-composite-action.md |
Need CI Android emulator .apk artifact | gha-android-composite-action.md |
| Need one workflow to trigger both platform jobs | gha-workflow-and-downloads.md |
| Need scripted artifact download | gha-workflow-and-downloads.md |