Temporary files (tmpclaude-*-cwd) not cleaned up on exit (Windows)

Temporary files (tmpclaude-*-cwd) not cleaned up on exit (Windows)

Description

On Windows, Claude Code creates temporary files with the pattern tmpclaude-XXXX-cwd in the working directory to track the current working directory for bash sandbox operations. These files are not being cleaned up when exiting the session with /exit command.

Environment

• Platform: Windows (MINGW64_NT-10.0-26200)
• Shell: Git Bash / MINGW64

Steps to Reproduce

1. Start Claude Code in a directory (e.g., D:\Desktop\wsp)
2. Run any bash command (this creates the temp file)
3. Exit with /exit command
4. Check the directory - tmpclaude-XXXX-cwd file still exists

Expected Behavior

The temporary file should be automatically deleted when the session ends normally via /exit.

Actual Behavior

The temporary file remains in the working directory. Over time, multiple sessions accumulate many orphaned temp files.

Example

$ ls tmpclaude-*
tmpclaude-9cba-cwd
tmpclaude-f29d-cwd
...
(40+ files accumulated over time)

File content is just the working directory path:

/d/Desktop/wsp

Possible Cause

The cleanup logic may not be handling Windows paths correctly, or the exit hook is not being triggered properly on Windows.

Workaround

Manually delete the files:

rm -rf ./tmpclaude-*