Debug-action-cache Work [ CONFIRMED ]

Locate the section in the left sidebar and click Caches .

To follow along, ensure you have:

- name: List caches run: | curl -H "Authorization: token $ secrets.GITHUB_TOKEN " \ -H "Accept: application/vnd.github+json" \ https://api.github.com/repos/$ github.repository /actions/caches debug-action-cache

Build tools frequently use environment variables to configure compilers. If a cloud runner injects a fluctuating variable (like a unique RUNNER_TRACKING_ID ), the cache engine assumes the build environment has changed and invalidates the previous cache. 3. Non-Deterministic Build Outputs

Most cache problems boil down to key mismanagement. Let’s break down the anatomy of a cache action: Locate the section in the left sidebar and click Caches

Use cache debugging when you encounter:

You haven’t changed any dependencies, yet the CI pipeline insists on downloading the entire internet on every single commit. When you run a debug-action-cache routine, your main

When you run a debug-action-cache routine, your main goal is to find out why a pipeline is downloading files from scratch instead of pulling them instantly from the cache storage. 🔍 Common Root Causes of Cache Failures

gh cache delete <cache-id>

If your cache key relies on a dynamic value (such as a changing timestamp or an incorrectly scoped hash file), the pipeline generates a completely new key on every run. This results in a continuous cache miss. 2. Ephemeral Environment Variables

A common culprit for cache misses is the environment. If your build script pulls in a timestamp, a random seed, or a local file path (e.g., /Users/john/project vs /Users/jane/project ), the cache will treat them as different actions. 3. Verbose Logging