Temporary files (tmpclaude-*-cwd) not cleaned up after bash commands

Description

Claude Code creates temporary files named tmpclaude-<hash>-cwd in the working directory when executing bash commands. These files contain the current working directory path and appear to be used for tracking directory state.

The files are not being cleaned up after the bash commands complete, leaving orphaned temp files in the user's project directory.

Steps to Reproduce

1. Start a Claude Code session
2. Execute several bash commands
3. Check the working directory for tmpclaude-* files

Observed Behavior

Multiple temp files accumulate in the working directory:

-rw-r--r-- 1 user 34 Jan 13 18:46 tmpclaude-0701-cwd
-rw-r--r-- 1 user 34 Jan 13 18:46 tmpclaude-1fab-cwd
-rw-r--r-- 1 user 34 Jan 13 18:56 tmpclaude-3300-cwd
...

Each file contains just the working directory path, e.g.:

/d/repos/my-project

Expected Behavior

Temporary files should be cleaned up after the bash command completes, or stored in a system temp directory rather than the user's project directory.

Environment

• Platform: Windows (MINGW64_NT-10.0)
• Claude Code: Latest version as of 2026-01-13