Debug-action-cache May 2026

Add a temporary step after your cache restore:

Then, in a workflow or locally:

Using debug-action-cache to find the exact key to delete: debug-action-cache

The typical workflow looks like this:

- name: Inspect cache contents run: | echo "Listing cached Python site-packages" ls -la venv/lib/python3.9/site-packages/ | head -20 echo "Checking for stale binaries" find venv -name "*.so" -exec ls -lh {} \; Combine this with debug logs showing the restore key that was used. If you see Linux-pip-staging , you know the problem is branch isolation. If you find a corrupted cache, you cannot edit it. You must delete it. GitHub does not have a UI for deleting individual caches (as of 2025), but you can use the gh CLI or the delete-cache action. Add a temporary step after your cache restore: