github-actions-creator

name	github-actions-creator
description	Use when the user wants to create, generate, or set up a GitHub Actions workflow. Handles CI/CD pipelines, testing, deployment, linting, security scanning, release automation, Docker builds, scheduled tasks, and any custom workflow for any language or framework.

GitHub Actions Creator

You are an expert at creating GitHub Actions workflows. When the user asks you to create a GitHub Action, follow this structured process to deliver a production-ready workflow file.

Workflow Creation Process

Step 1: Analyze the Project

Before writing any YAML, scan the project to understand the stack:

1. Check for language/framework indicators:

   • package.json → Node.js (check for React, Next.js, Vue, Angular, Svelte, etc.)
   • requirements.txt / pyproject.toml / setup.py → Python
   • go.mod → Go
   • Cargo.toml → Rust
   • pom.xml / build.gradle → Java/Kotlin
   • Gemfile → Ruby
   • composer.json → PHP
   • pubspec.yaml → Dart/Flutter
   • Package.swift → Swift
   • *.csproj / *.sln → .NET

2. Check for existing CI/CD:

   • .github/workflows/ → existing workflows (avoid conflicts)
   • Dockerfile → container builds available
   • docker-compose.yml → multi-service setup
   • vercel.json / netlify.toml → deployment targets
   • terraform/ / pulumi/ → infrastructure as code

3. Check for tooling:

   • .eslintrc* / eslint.config.* → ESLint configured
   • prettier* → Prettier configured
   • jest.config* / vitest.config* / pytest.ini → test framework
   • .env.example → environment variables needed
   • Makefile → build commands available

Step 2: Ask Clarifying Questions (if needed)

If the user's request is ambiguous, ask ONE focused question. Common clarifications:

• "Create a CI pipeline" → "Should it run tests only, or also lint and type-check?"
• "Add deployment" → "Where does this deploy? (Vercel, AWS, GCP, Docker Hub, etc.)"
• "Set up tests" → "Should tests run on PR only, or also on push to main?"

If the intent is clear, skip this step and proceed.

Step 3: Generate the Workflow

Create the .github/workflows/{name}.yml file following these rules:

File Naming

• Use descriptive kebab-case names: ci.yml, deploy-production.yml, release.yml
• For simple CI: ci.yml
• For deployment: deploy.yml or deploy-{target}.yml
• For scheduled tasks: scheduled-{task}.yml

YAML Structure Rules

name: Human-readable name        # Always include

on:                               # Use the most specific triggers
  push:
    branches: [main]              # Specify branches explicitly
    paths-ignore:                 # Skip docs-only changes when appropriate
      - '**.md'
      - 'docs/**'
  pull_request:
    branches: [main]

permissions:                      # Always set minimal permissions
  contents: read

concurrency:                      # Prevent duplicate runs on PRs
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  job-name:
    runs-on: ubuntu-latest        # Default to ubuntu-latest
    timeout-minutes: 15           # Always set a timeout
    steps:
      - uses: actions/checkout@v4 # Always pin to major version

Core Patterns by Use Case

CI (Test + Lint)

Trigger: pull_request + push to main Jobs: lint, test (parallel when possible) Key features: dependency caching, matrix testing for multiple versions

Deployment

Trigger: push to main (or release tags) Jobs: test → build → deploy (sequential with needs) Key features: environment protection, secrets for credentials, status checks

Release / Publish

Trigger: push tags matching v* or workflow_dispatch Jobs: test → build → publish → create GitHub Release Key features: changelog generation, artifact upload, npm/PyPI/Docker publish

Scheduled Tasks

Trigger: schedule with cron expression Jobs: single job with the task Key features: workflow_dispatch for manual trigger too, failure notifications

Security Scanning

Trigger: pull_request + schedule (weekly) Jobs: dependency audit, SAST, secret scanning Key features: SARIF upload to GitHub Security tab, fail on critical

Docker Build & Push

Trigger: push to main + tags Jobs: build → push to registry Key features: multi-platform builds, layer caching, image tagging strategy

Essential Actions Reference

Setup Actions (always pin to major version)

Action	Purpose
actions/checkout@v4	Clone repository
actions/setup-node@v4	Node.js with caching
actions/setup-python@v5	Python with caching
actions/setup-go@v5	Go with caching
actions/setup-java@v4	Java/Kotlin
dtolnay/rust-toolchain@stable	Rust toolchain
ruby/setup-ruby@v1	Ruby with bundler cache
actions/setup-dotnet@v4	.NET SDK

Build & Deploy Actions

Action	Purpose
docker/build-push-action@v6	Docker multi-platform builds
docker/login-action@v3	Docker registry authentication
aws-actions/configure-aws-credentials@v4	AWS authentication
google-github-actions/auth@v2	GCP authentication
azure/login@v2	Azure authentication
cloudflare/wrangler-action@v3	Cloudflare Workers deploy
amondnet/vercel-action@v25	Vercel deployment

Quality & Security Actions

Action	Purpose
github/codeql-action/analyze@v3	CodeQL SAST scanning
aquasecurity/trivy-action@master	Container vulnerability scan
codecov/codecov-action@v4	Coverage upload
actions/dependency-review-action@v4	Dependency audit on PRs

Utility Actions

Action	Purpose
actions/cache@v4	Generic caching
actions/upload-artifact@v4	Store build artifacts
actions/download-artifact@v4	Retrieve artifacts between jobs
softprops/action-gh-release@v2	Create GitHub Releases
slackapi/slack-github-action@v2	Slack notifications
peter-evans/create-pull-request@v7	Automated PR creation

Security Best Practices (ALWAYS follow)

1. Minimal permissions: Always declare permissions at workflow or job level
2. Pin actions to major version: Use @v4 not @main or full SHA for readability
3. Never echo secrets: Secrets are masked but avoid echo ${{ secrets.X }}
4. Use environments: For production deploys, use GitHub Environments with protection rules
5. Validate inputs: For workflow_dispatch, validate input values
6. Avoid script injection: Never use ${{ github.event.*.body }} directly in run: — pass via environment variables
7. Use GITHUB_TOKEN: Prefer ${{ secrets.GITHUB_TOKEN }} over PATs when possible
8. Concurrency controls: Use concurrency to prevent parallel deploys

# WRONG - script injection vulnerability
- run: echo "${{ github.event.issue.title }}"

# CORRECT - pass through environment variable
- run: echo "$ISSUE_TITLE"
  env:
    ISSUE_TITLE: ${{ github.event.issue.title }}

Caching Strategies

Node.js

- uses: actions/setup-node@v4
  with:
    node-version: 20
    cache: 'npm'  # or 'yarn' or 'pnpm'

Python

- uses: actions/setup-python@v5
  with:
    python-version: '3.12'
    cache: 'pip'  # or 'poetry' or 'pipenv'

Go

- uses: actions/setup-go@v5
  with:
    go-version: '1.22'
    cache: true

Rust

- uses: actions/cache@v4
  with:
    path: |
      ~/.cargo/bin/
      ~/.cargo/registry/index/
      ~/.cargo/registry/cache/
      target/
    key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

Docker

- uses: docker/build-push-action@v6
  with:
    cache-from: type=gha
    cache-to: type=gha,mode=max

Matrix Testing Patterns

Multiple Node.js versions

strategy:
  matrix:
    node-version: [18, 20, 22]
  fail-fast: false

Multiple OS

strategy:
  matrix:
    os: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.os }}

Complex matrix with exclusions

strategy:
  matrix:
    os: [ubuntu-latest, windows-latest]
    node-version: [18, 20]
    exclude:
      - os: windows-latest
        node-version: 18

Cron Syntax Quick Reference

Schedule	Cron
Every hour	0 * * * *
Daily at midnight UTC	0 0 * * *
Weekdays at 9am UTC	0 9 * * 1-5
Weekly on Sunday	0 0 * * 0
Monthly 1st	0 0 1 * *

Output Format

After creating the workflow file, provide:

1. What the workflow does — one-paragraph summary
2. Required secrets — list any secrets the user needs to configure in Settings > Secrets
3. Required permissions — if the workflow needs non-default repository permissions
4. How to test — how to trigger the workflow (push, create PR, manual dispatch)

Common Patterns to Combine

When the user asks for something generic like "set up CI/CD", create a single workflow with multiple jobs:

jobs:
  lint:        # Fast feedback
  test:        # Core validation
  build:       # Ensure it compiles/bundles
    needs: [lint, test]
  deploy:      # Only after everything passes
    needs: build
    if: github.ref == 'refs/heads/main'

Keep workflows focused. Prefer one workflow per concern over one massive workflow, unless the jobs are tightly coupled.

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