Invalid input[2].id: string too long when submitting via Github copilot (5.3 codex and 5.4) #17933

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1. Khnx-ai

   added

   bugSomething isn't workingSomething isn't working

   on Mar 17, 2026
2. github-actions

   assigned

   rekram1-node

   on Mar 17, 2026
3. github-actions

   added

   coreAnything pertaining to core functionality of the application (opencode server stuff)Anything pertaining to core functionality of the application (opencode server stuff)

   on Mar 17, 2026
4. github-actions commented on Mar 17, 2026

   

   github-actionsBot

   on Mar 17, 2026 – with GitHub Actions

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   This issue might be a duplicate of existing issues. Please check:

   • [BUG]: Invalid 'messages[68].tool_calls[0].id': string too long. Expected a string with maximum length 40, but got a string with length 46 instead. #12653: Same "string too long" error for tool call IDs when using GitHub Copilot — reports Invalid 'messages[68].tool_calls[0].id': string too long, which appears to be the same underlying issue.
5. thdxr

   removed

   bugSomething isn't workingSomething isn't working

   coreAnything pertaining to core functionality of the application (opencode server stuff)Anything pertaining to core functionality of the application (opencode server stuff)

   on May 3, 2026
6. github-actions commented on Jul 3, 2026

   

   github-actionsBot

   on Jul 3, 2026 – with GitHub Actions

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   To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.
7. github-actions

   closed this as not plannedon Jul 3, 2026