Disruption with some GitHub services

Severity: MajorCategory: BugService: GitHub
This summary is created by Generative AI and may differ from the actual content.
Overview
On 29 January 2025 between 14:00 UTC and 16:28 UTC Copilot chat in github.com was degraded, where chat messages which included chat skills failed to save to our datastore due to a change in client side generated identifiers. We mitigated the incident by rolling back the client side changes. Based on this incident, we are working on better monitoring to reduce our detection time, fixing gaps in testing to prevent a repeat of incidents such as this one in the future.
Impact
Copilot chat in github.com was degraded, where chat messages which included chat skills failed to save to our datastore
Trigger
a change in client side generated identifiers
Detection
issues related to Copilot Chat on GitHub.com
Resolution
We mitigated the incident by rolling back the client side changes
Root Cause
a change in client side generated identifiers
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