This page may contain stale information. Last updated: 2026-06-25
Definition
GitHub Actions is GitHub’s CI/CD automation platform that runs workflows triggered by repository events. Agentic Workflows compile natural-language Markdown definitions into standard Actions YAML for sandboxed coding agents.
Key Points
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2026-06-23: cordyceps vulnerability class — cross-workflow privilege escalation via untrusted PR input (2026-06-25-novee-cordyceps-github-actions-supply-chain)
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2026-06-18: actions/checkout v7 partial mitigation for some Cordyceps patterns
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Workflows defined in
.github/workflows/YAML files -
Agentic Workflows add
gh aw compilemarkdown-to-YAML pipeline -
Integrates with github-copilot and third-party coding agents