pending tool call can remain stuck after schema validation error #30093

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1. github-actions

   assigned

   nexxeln

   on May 31, 2026
2. github-actions commented on May 31, 2026

   

   github-actionsBot

   on May 31, 2026 – with GitHub Actions

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

   • Empty bash tool arguments {} can still be submitted and interrupt the session #27871: Empty bash tool arguments {} causing session interruption — same example (bash with empty object {}) and same symptom of an interrupted/stuck tool part
   • Unknown tool name written to DB before repair callback fires; stuck pending part permanently kills session on Bedrock (400 toolUse.name constraint) #28989: Unknown tool name persisted as pending before repair fires, leaving the session permanently stuck — same core symptom of a pending part that never settles
   • [BUG]: Bash tool execution loop with SchemaError(Missing key at ["description"]) #29518: Bash tool execution loop with SchemaError(Missing key at ["description"]) — another schema validation error on a built-in tool call leading to unrecoverable state

   If your issue is distinct from all of the above, please add a note clarifying the difference so maintainers can triage accordingly.
3. nexxeln

   closed this as a duplicateof Empty bash tool arguments {} can still be submitted and interrupt the session #27871 on Jun 1, 2026