[BUG] Getting 400 API error every prompt: tool_use ids were found without tool_result

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?

  ⎿  Read PDF (2.4MB)
  ⎿  API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.12: `tool_use` ids were found without `tool_result` blocks immediately after: toolu_0164dj1VZiRHAsW2rXJugiC2,
     toolu_01HJPPbn2Qen3x7Lbsn9P2fs. Each `tool_use` block must have a corresponding `tool_result` block in the next message."},"request_id":"req_011CTEptkseLGvehVa6L8DnU"}

What Should Happen?

No error of course

Error Messages/Logs

Steps to Reproduce

Run any prompt. It happens every time. Last time I used claude code a week or two ago it was working fine.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.0.117 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_