GitHub Copilot Chat in github.com helps you get to the root cause of an error faster when you paste a stack trace. Copilot recognizes stack traces more reliably and will guide you through a structured root-cause analysis using the stack trace plus your repository’s code context, helping you move from “where it crashed” to “why it happened”.

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GitHub Copilot Chat on github.com now provides more structured root-cause analysis when you paste a stack trace. The improved responses break down what failed and where, why it failed, the most likely root cause, relevant code references, a confidence level with a suggested fix, and next verification steps. This feature is available to all Copilot users on github.com.

Better debugging with GitHub Copilot on the web