[BUG] tmpclaude-* files in project folder

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?

With the latest version 2.1.5 on windows temporary files in the form "tmpclaude-*-cwd" get created in the projects root

What Should Happen?

They should be in the systems temp folder instead

Error Messages/Logs

Steps to Reproduce

Just use claude

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.3/4

Claude Code Version

2.1.5 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_