Registry/feed protocol

GitHub Actions cache old versions retired cache service backend brownouts shutdown actions/cache v1 v2 February 2025

Restore/save begins failing during brownouts or after shutdown while other steps pass.

GitHub Actions cacheCI/CDRegistry/feed protocolgh_cache

Agent Quick Fix

Repair against the current GitHub Actions cache contract, then keep the change narrow and source-backed.

Product: GitHub Actions cache
Current-contract area: Old actions/cache release targets retired cache backend
Likely root cause: Restore/save begins failing during brownouts or after shutdown while other steps pass.
Repair direction: Verifier checks continuity, cursor advancement, de-duplication, and compatibility with the current feed. Verify an updated action/runner protocol and correct restore/save behavior.

Symptom

Restore/save begins failing during brownouts or after shutdown while other steps pass.

Why This Happens

The consumer code is locally valid under the old feed contract; only the live registry's current routing, cursor, or response semantics disambiguate the fix.

Common Wrong Fixes

  • Changing local code without checking the current external contract.
  • Retrying the same install, build, or API call with no version/source change.
  • Applying a broad unsafe bypass when a narrow compatibility fix is available.

Codex Search Keywords

These are the search terms observed in a neutral Codex validation run for this failure shape.

GitHub Actions cache old versions retired cache service backend brownouts shutdown actions/cache v1 v2 February 2025
actions/cache legacy cache service shutdown brownout v1 v2
site:github.com/actions/cache cache service will be retired February 1 2025
"cache service" "February 1, 2025" "actions/cache"
https://github.com/actions/cache

Source Trail

GitHub source file/reference: