How to use
- Copy the installation command and review the source package before installing it in your own agent environment.
- Check the source document for required tools, credentials and supported hosts.
- Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/callstackincubator/agent-skills --skill github-actionsBefore you start
- Installation does not include a model subscription, API allowance or permission to access your files.
- Repository stars and installation counts describe activity, not an independent quality or security test.
Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.
GitHub Actions Build Artifacts
Overview
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.
When to Apply
Use this skill when:
- Creating CI workflows that build React Native simulator/emulator artifacts.
- Uploading iOS simulator and Android emulator installables from PRs or manual dispatch runs.
- Replacing local-only mobile builds with downloadable CI artifacts.
- Needing stable artifact IDs/names for scripted retrieval with
ghor REST API.
Quick Reference
- Add composite actions from gha-ios-composite-action.md and gha-android-composite-action.md.
- Wire them into
.github/workflows/mobile-build.ymlfrom gha-workflow-and-downloads.md. - Upload with
actions/upload-artifact@v4and captureartifact-idoutput. - Download with
gh run downloadorGET /repos/{owner}/{repo}/actions/artifacts/{artifact_id}/{archive_format}.
References
| 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 -> Skill Mapping
| 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 |





