Bash shell snapshot errors on Windows with Cygwin - snapshot files not found

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?

When running Bash commands through Claude Code on Windows (using Cygwin), I'm getting repeated errors about missing snapshot files:

/usr/bin/bash: line 1: /cygdrive/c/Users/12477/.claude/shell-snapshots/snapshot-bash-1771380687792-iicuq6.sh: No such file or directory
/usr/bin/bash: line 1: /cygdrive/c/Users/12477/AppData/Local/Temp/claude-b011-cwd: No such file or directory

These errors appear frequently, especially when running simple commands like git fetch.

The snapshot file path changes between runs (different timestamps/IDs). Commands still execute successfully, but the error messages are distracting and
suggest there may be an underlying issue with shell session management.

What Should Happen?

Commands should execute cleanly without snapshot errors in stderr.

The snapshot functionality should either:

1. Work correctly without file-not-found errors
2. Have robust error handling that suppresses these errors when snapshots aren't critical
3. Provide an option for users to disable snapshot functionality if it's not essential for their use case

Error Messages/Logs

/usr/bin/bash: line 1: /cygdrive/c/Users/12477/.claude/shell-snapshots/snapshot-bash-1771380687792-iicuq6.sh: No such file or directory
  /usr/bin/bash: line 1: /cygdrive/c/Users/12477/AppData/Local/Temp/claude-b011-cwd: No such file or directory

Steps to Reproduce

1. Use Claude Code on Windows 11 with Cygwin bash
2. Run any Bash command through Claude Code (e.g., git fetch)
3. Observe stderr output for snapshot-related errors

Claude Model

Other

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.39

Platform

Other

Operating System

Windows

Terminal/Shell

Other

Additional Information

_No response_