"Each tool_use block must have a corresponding tool_result block in the next message" when interrupting Sonnet 4.5 convo during tool call #3230

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1. github-actions commented on Oct 16, 2025

   

   github-actionsBot

   on Oct 16, 2025 – with GitHub Actions

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

   • AI_APICallError: tool_use blocks found without corresponding tool_result blocks #2720: Same error about tool_use blocks found without corresponding tool_result blocks
   • AI_APICallError: tool_use ids were found without tool_result blocks immediately after #1662: Identical error message with tool_use ids found without tool_result blocks, also occurs regularly with Sonnet 4
   • AI_APICallError: messages.3: tool_use ids were found without tool_result blocks immediately after: toolu_01G5ipgNZWmDHuV6cvzyQpfH. Each tool_use block must have a corresponding tool_result block in the next message. #2214: Same error specifically when interrupting responses mid-flight
   • Interrupting a tool call breaks sending new messages #41: Describes interrupting tool calls breaking message sending (closed but related)

   Feel free to ignore if none of these address your specific case.
2. hellowodl commented on Oct 16, 2025

   

   hellowodl

   on Oct 16, 2025

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   Duplicate
3. hellowodl

   closed this as completedon Oct 16, 2025