Individual skill

github-actions-runtime-upgrade-conventions

Upgrade GitHub Actions to supported runtimes by selecting safe action versions, preserving workflow behavior, and validating post-upgrade execution.

skills/github-actions-runtime-upgrade-conventions/SKILL.md

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# GitHub Actions Runtime Upgrade Conventions

Use this skill when editing GitHub Actions workflows to address deprecation warnings about action runtimes (for example Node.js runtime migrations).

## Use This Skill When

- Workflow logs report an action is running on a deprecated runtime.
- You are upgrading action versions in `.github/workflows/*.yml` or `.github/workflows/*.yaml`.
- You need to keep existing workflow behavior while modernizing action dependencies.

## Upgrade Rules

- Prefer upgrading to the latest stable **major** version of each action that is compatible with the workflow.
- Prefer immutable pins: resolve the target release to a full commit SHA and use that SHA in `uses:`.