GitHub Actions Skill

GitHub Actions CI/CD reference for workflow templates, caching, and automation patterns.

Quick Reference

gh run list --workflow=<name>  # Recent workflow runs
gh run view <run-id>           # Detailed run output
gh run download <run-id>       # Download logs
gh workflow list               # List workflows
gh workflow run <workflow>     # Trigger workflow
gh run watch <run-id>          # Watch run in real-time

Key Paths:

• .github/workflows/ - Workflow definitions
• actions/ - Custom local actions

Reference Files

Load on-demand based on task:

Workflow Structure

name: Workflow name

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:  # Manual trigger

env:
  NODE_VERSION: '18'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
      - run: npm ci
      - run: npm test

Common Triggers

Validation Checklist

• Workflow triggers correctly configured
• Runner selection appropriate
• Caching implemented for dependencies
• Secrets properly configured
• Permissions minimal and explicit
• Actions pinned to specific versions
• Branch/path filters correct