Workflow YAML, jobs/steps, matrix builds, actions marketplace, caching, environments, secrets, service containers, artifacts, self-hosted runners.
Scanned 9/12/2026
Install to Claude Code
npx -y skills add skeletorflet/opencode-supreme-setup --skill github-actions --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: github-actions
description: Workflow YAML, jobs/steps, matrix builds, actions marketplace, caching, environments, secrets, service containers, artifacts, self-hosted runners.
---
## github-actions
Automate CI/CD with GitHub Actions.
### Workflow structure
- on: push, pull_request, schedule, workflow_dispatch
- jobs: runs-on, strategy.matrix, needs
- steps: uses, run, env, with
- Conditional execution with if expressions
### Marketplace and actions
- Official actions: actions/checkout, actions/setup-node
- Community actions from GitHub Marketplace
- Docker container actions
- JavaScript and composite actions
### Optimization
- Dependency caching with actions/cache
- Matrix builds for cross-version testing
- Parallel job execution
- Artifact upload and download
### Security
- Environments with protection rules
- Encrypted secrets per environment
- OIDC for cloud provider auth
- Self-hosted runners for private infra
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Build reusable Terraform modules for AWS, Azure, and GCP infrastructure following infrastructure-as-code best practices. Use when creating infrastructure modules, standardizing cloud provisioning, or implementing reusable IaC components.