Some Copilot Cloud Agent jobs not starting
Final update
On August 5, 2026, between 11:02 and 11:54 UTC, the GitHub Copilot cloud agent service was degraded and new cloud agent jobs were delayed from starting. During this period 100% of newly submitted agent jobs were affected. The incident was limited to delay of cloud agent jobs. No jobs were lost and the queued backlog was processed by 13:00 UTC. This was due to an internal rate limit used to protect service availability that was enabled more broadly than intended delaying more traffic than expected. The service recovered when the rate limit window expired. We then tuned the control so it no longer affected unrelated coding agent traffic. We are working to improve the control's scoping and our monitoring and alerting to reduce our time to detection and mitigation of similar issues in the future.
Timeline
- Resolved · Aug 5, 13:00 UTC
On August 5, 2026, between 11:02 and 11:54 UTC, the GitHub Copilot cloud agent service was degraded and new cloud agent jobs were delayed from starting. During this period 100% of newly submitted agent jobs were affected. The incident was limited to delay of cloud agent jobs. No jobs were lost and the queued backlog was processed by 13:00 UTC. This was due to an internal rate limit used to protect service availability that was enabled more broadly than intended delaying more traffic than expected. The service recovered when the rate limit window expired. We then tuned the control so it no longer affected unrelated coding agent traffic. We are working to improve the control's scoping and our monitoring and alerting to reduce our time to detection and mitigation of similar issues in the future.
- Monitoring · Aug 5, 12:10 UTC
Copilot cloud agent jobs have recovered and the backlog of delayed jobs is being processed.
- Monitoring · Aug 5, 12:01 UTC
The degradation has been mitigated. We are monitoring to ensure stability.
- Investigating · Aug 5, 11:38 UTC
We are investigating reports of impacted performance for some GitHub services.
More from GitHub
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2310:11 UTC | Incident across several services | minor | Ongoing |
| Sep 2022:13 UTC | Incident with Pull Requests | minor | 1h 9m |
| Sep 1720:59 UTC | Elevated rate of errors for OpenAI models provided by Copilot | minor | 50m |
| Sep 1607:20 UTC | Degradation with Gemini 3.8 Flash | major | 10h 28m |
| Sep 1519:11 UTC | Disruption with some GitHub services | minor | 49m |
| Sep 1509:47 UTC | Disruption with some GitHub services | minor | 1h 30m |
Also caused by capacity and load
All| Started | Vendor | Incident | Impact | Duration |
|---|---|---|---|---|
| Sep 2213:19 UTC |  ClickHouse | We are investigating an issue with CH servers in Azure germanywestcentral regionClickHouse | minor | 5h 6m |
| Sep 221:44 UTC |  Expo | Elevated Linux worker queue timesExpo | minor | 21m |
| Aug 2506:53 UTC |  Box | [Critical] Issue with DownloadsBox | critical | 44m |
| Aug 2015:40 UTC |  Google Cloud | We are investigating an issue where customers may experience timeouts, service degradations, errors, and elevated latencies across multiple products in the us-west1 region.Google Cloud | critical | 3h 40m |
| Aug 1812:58 UTC |  Snowflake | INC20000163Snowflake | major | 1h 54m |
| Aug 1713:19 UTC |  Fly.io | No capacity in ARNFly.io | none | 2h 22m |
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