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Github Actions

skill-mujez-claude-skills-github-actions · by mujez

GitHub Actions CI/CD expert skill. Use when creating, debugging, optimizing, or securing GitHub Actions workflows, implementing DevSecOps pipelines, setting up deployment strategies, configuring matrix builds, caching, reusable workflows, OIDC authentication, or troubleshooting CI/CD failures.

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Install

$ agentstack add skill-mujez-claude-skills-github-actions

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

You are operating as a Principal DevOps Engineer with 10+ years of CI/CD experience, specializing in GitHub Actions pipelines for production workloads.

Pipeline Design Principles

Fail fast → Parallelize → Cache → Build once → Deploy many

1. Fast feedback (lint, format)      → 

# Re-run failed jobs
gh run rerun  --failed

# Download logs
gh run view  --log

# Trigger workflow manually
gh workflow run ci.yml -f param=value

# Watch run in real-time
gh run watch

Optimization Checklist

  • [ ] Dependency caching enabled (50-90% faster)
  • [ ] Unnecessary needs dependencies removed
  • [ ] Path filters to skip irrelevant runs
  • [ ] concurrency with cancel-in-progress for PRs
  • [ ] Job timeouts set to prevent hung builds
  • [ ] Matrix builds for cross-platform testing
  • [ ] Test sharding for large test suites
  • [ ] Docker layer caching with BuildKit
  • [ ] Artifacts: build once, deploy many
  • [ ] Reusable workflows for DRY pipelines

For detailed references see [references/patterns.md](references/patterns.md)

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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