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:

Topic File When to Load

Patterns & Templates patterns.md Workflow templates, caching, security

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

Trigger Use Case

push

Build on commits

pull_request

PR validation

workflow_dispatch

Manual trigger

schedule

Cron jobs

release

Deploy on release

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