Getting Error while using Sonnet - 4.6 in copilot

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Error: (query) Execution failed: CAPIError: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.64: tool_use ids were found without tool_result blocks immediately after: toolu_vrtx_01DKnVMfHy5NjqGjXp7V4RLY. Each tool_use block must have a corresponding tool_result block in the next message."},"request_id":"req_vrtx_011CbYQPWTCfSAnGJSQ4k32V"} (Request ID: 7F75:160510:27CFAC7:2D5370B:6A1A99A0)

What Should Happen?

i am trying to find solution.....still getting the error

Error Messages/Logs

Steps to Reproduce

how can we correct the issue?

Copilot CLI
Error: (query) Execution failed: CAPIError: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.64: tool_use ids were found without tool_result blocks immediately after: toolu_vrtx_01DKnVMfHy5NjqGjXp7V4RLY. Each tool_use block must have a corresponding tool_result block in the next message."},"request_id":"req_vrtx_011CbYQPWTCfSAnGJSQ4k32V"} (Request ID: [7F75:160510:27CFAC7:2D5370B:6A1A99A0)....[](url)](

<img width="1337" height="715" alt="Image" src="https://github.com/user-attachments/assets/4659935a-b4fe-41ad-b003-124ba0f77f00" />

)

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Sonnet 4.6

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_