Debug-action-cache Fix Now

You can query the GitHub API directly.

The advantages of using debug-action-cache are numerous:

: Use actions/cache/restore and actions/cache/save as separate steps to identify if the failure is during download or upload. 📊 Sample Debug Report Data debug-action-cache

Let's map error symptoms to debug-action-cache insights.

: Caches have a 10GB limit per repository. If you hit this, GitHub will evict older caches, which might explain sudden "misses" for older branches. You can query the GitHub API directly

Your log shows “Cache not found” even though you’re sure a cache exists. Check:

step before your cache step to verify the files being hashed exist and have the expected content. Immutable Keys : Caches have a 10GB limit per repository

On Linux:

Add a step after restore to list the cached directory:

Enter the . Whether you are working with Bazel’s remote execution flags or custom CI scripts, debugging the action cache is the "black belt" skill of build engineering. What is the Action Cache?