Agent Skills: github-actions

This skill should be used when the user says "add CI", "setup GitHub Actions", "create workflow", "deploy workflow", "automate tests", "CI/CD pipeline", "improve workflow", "fix CI", "optimize GitHub Actions", "agregar CI", "configurar GitHub Actions", "workflow de deploy", "automatizar tests", or when a project has no .github/workflows/ directory. Covers Node.js, Python, and Go stacks.