Pin GitHub Actions to full commit SHAs#13
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Replace floating version tags with pinned commit SHAs to prevent supply chain attacks. Each action retains its version tag as a comment for readability.
ethan-wrasman-pkware
approved these changes
May 12, 2026
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Summary
Pins all GitHub Actions to full commit SHAs instead of floating version tags.
Why: A mutable tag (e.g. `@v4`) can be force-pushed to point to different — potentially malicious — code. A full SHA is immutable and cannot be redirected.
Each pinned action retains its version tag as a comment for readability:
```yaml
uses: actions/checkout@11bd719 # v4
```
Test plan