Disruption with users unable to start Claude and Codex agent task from the web

What to do

• Check whether your product depends on GitHub. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 14m it lasted.

  Anything that failed between 2026-04-23 19:28 UTC and 2026-04-23 19:42 UTC may need a replay.

• Subscribe to GitHub's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=github works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from GitHub 3

1. investigatingApr 23, 2026, 7:28 PM UTC

   We are investigating reports of impacted performance for some GitHub services.

   provider

2. investigatingApr 23, 2026, 7:33 PM UTC

   We have identified the root cause of the issue and are working on mitigation.

   provider

3. resolvedApr 23, 2026, 7:42 PM UTC

   Between 18:45 and 19:42 UTC on April 23, users were unable to start new agent tasks using either Claude or Codex agent on github.com. This was caused by a code change to how Copilot mission control routes task creation requests. Ongoing agent tasks and other Copilot agent features were not affected. We mitigated the impact by reverting the breaking change. We are adding extra monitoring and integration test coverage for the task creation path to prevent future recurrence.

   provider

Corrections

None so far.

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