[BUG] API Error: 400 due to tool use concurrency issues.

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?

When i ask claude anythings i receive always API Error: 400 due to tool use concurrency issues while claude responding.

What Should Happen?

claude should reply to me without error

Error Messages/Logs

API Error: 400 due to tool use concurrency issues.

Steps to Reproduce

The error appear any thing i ask to claude

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.12 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_