[BUG] tmpclaude-*-cwd temp files accumulate in project directory and are not cleaned up

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?

Description:

When using Claude Code, temporary files with the pattern tmpclaude-XXXX-cwd are created in the project root directory. These files persist after bash commands complete and accumulate over time, polluting the project folder.

The files appear to store the current working directory path in Unix format.

What Should Happen?

Temp files should be automatically cleaned up when the bash command completes or when the session ends.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code in a project directory
2. Run several bash commands during a session
3. Check project root - tmpclaude-* files remain

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1

Claude Code Version

2.1.5

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

File contents example:
/d/Fooderland