TimeoutError: Timeout after XXXs waiting for session.idle #558

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1. github-actions

   added

   bug

   needs-info

   on Feb 24, 2026
2. github-actions commented on Feb 24, 2026

   

   github-actionsBot

   on Feb 24, 2026 – with GitHub Actions

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   Thanks for reporting this, @TaoChenOSU!

   I've labeled this as a bug that needs more information. The timeout error suggests the CLI isn't responding with expected events.

   To help diagnose the issue, could you please provide:

   1. Which SDK are you using? (Python, Node.js, Go, or .NET)
   2. SDK version: Check your package manager (e.g., pip show copilot, npm list @github/copilot-sdk``)
   3. Copilot CLI version: Run gh copilot version
   4. Minimal code snippet: Share the code that triggers the timeout
   5. Full stack trace: Include the complete error message and any preceding events

   Also note: The error message improvement you suggested (showing session state in the timeout exception) is a great enhancement idea. Once we understand your specific case, we can consider adding better diagnostics to the SDK.

   AI generated by Issue Triage Agent
3. TaoChenOSU commented on Feb 24, 2026

   

   TaoChenOSU

   on Feb 24, 2026

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   1. I am using the Python SDK
   2. version: github-copilot-sdk==0.1.25
   3. I should be using the latest. In my GH action, I run npm install -g @github/copilot.
   4. I cannot reproduce the issue on my local machine.
   5. There is no stack trace
4. Rasaboun commented on Feb 25, 2026

   

   Rasaboun

   on Feb 25, 2026

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   @TaoChenOSU The GitHub Copilot SDK is tied to a specific GitHub Copilot CLI version and invokes its bundled compatible CLI instead of the latest version installed on the system
5. octoberninth commented on Mar 2, 2026

   

   octoberninth

   on Mar 2, 2026

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   I had the same problem, and this helped me: https://stackoverflow.com/questions/79892501/copilot-sdk-timeout
6. PureWeen

   added a commit that references this issue on Mar 11, 2026

   Add reproduction scripts for missing session.idle CLI bug (github#794)

   ...

   c8e6638
7. TaoChenOSU commented on Mar 30, 2026

   

   TaoChenOSU

   on Mar 30, 2026

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   I am already using non-streaming mode.

   @Rasaboun Does that mean I have to install the SDK compatible version to my system instead of the latest CLI version? If so, is there a table showing the compatible CLI version to each SDK version?
8. Rasaboun commented on Mar 30, 2026

   

   Rasaboun

   on Mar 30, 2026

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   I am already using non-streaming mode.

   @Rasaboun Does that mean I have to install the SDK compatible version to my system instead of the latest CLI version? If so, is there a table showing the compatible CLI version to each SDK version?

   No it's bundled in the copilot-sdk package, for the compatible version check the changelog
9. patniko

   closed this as completedon Jun 9, 2026