Temporary tmpclaude-*-cwd files not cleaned up after sessions

Description

Claude Code is leaving behind temporary files named tmpclaude-XXXX-cwd (where XXXX is a random hash) scattered throughout the working directory and its subdirectories. These files are not being cleaned up when sessions end.

Evidence

After approximately 2 days of irregular usage, I found and deleted 170 temporary files across various project subdirectories.

Example filenames:

• tmpclaude-6e63-cwd
• tmpclaude-9b89-cwd
• tmpclaude-a929-cwd

These files were found in multiple nested directories throughout the workspace.

Expected behavior

Temporary files should be automatically cleaned up when:

• A session ends normally
• A session is interrupted
• Subagents/tasks complete

Environment

• Platform: Windows 11
• Claude Code CLI

Workaround

Manual cleanup with: find . -name "tmpclaude*" -type f -delete