Workflow Setup Skill

Set up GitHub Actions workflows for continuous integration and deployment.

Use When

• Need CI/CD for a new project
• Adding missing workflows to existing project
• Updating workflow versions to latest

Standard Workflows

Python Workflows

1. test.yml - Run pytest on push/PR
2. lint.yml - Run ruff linting
3. typecheck.yml - Run mypy type checking
4. publish.yml - Publish to PyPI on release

Rust Workflows

1. ci.yml - Combined test/lint/check workflow
2. release.yml - Build and publish releases

TypeScript Workflows

1. test.yml - Run Jest tests
2. lint.yml - Run ESLint
3. build.yml - Build for production
4. deploy.yml - Deploy to hosting (Vercel, Netlify, etc.)

Workflow

1. Check Existing Workflows

ls -la .github/workflows/

2. Identify Missing Workflows

from project_detector import ProjectDetector

detector = ProjectDetector(Path.cwd())
language = detector.detect_language()

required_workflows = {
    "python": ["test.yml", "lint.yml", "typecheck.yml"],
    "rust": ["ci.yml"],
    "typescript": ["test.yml", "lint.yml", "build.yml"],
}

missing = detector.get_missing_configurations(language)

3. Render Workflow Templates

workflows_dir = Path(".github/workflows")
workflows_dir.mkdir(parents=True, exist_ok=True)

for workflow in required_workflows[language]:
    template = templates_dir / language / "workflows" / f"{workflow}.template"
    output = workflows_dir / workflow

    engine.render_file(template, output)
    print(f"✓ Created: {output}")

4. Validate Workflows

# Syntax check (requires act or gh CLI)
gh workflow list

# Or manually check YAML syntax
python3 -c "import yaml; yaml.safe_load(open('.github/workflows/test.yml'))"

Workflow Best Practices

Use Latest Action Versions

# Good - pinned to major version
- uses: actions/checkout@v4
- uses: actions/setup-python@v5

# Avoid - unpinned or outdated
- uses: actions/checkout@v2
- uses: actions/setup-python@latest

Matrix Testing (Python)

strategy:
  matrix:
    python-version: ["3.10", "3.11", "3.12"]
    os: [ubuntu-latest, macos-latest, windows-latest]

Caching Dependencies

- uses: actions/setup-python@v5
  with:
    python-version: '3.10'
    cache: 'pip'  # Cache pip dependencies

Updating Workflows

To update workflows to latest versions:

/attune:upgrade --component workflows

Related Skills

• Skill(attune:project-init) - Full project initialization
• Skill(sanctum:pr-prep) - PR preparation with CI checks