[BUG] add-dir command isn't working inside Claude Code

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 I try using /add-dir command inside Claude Code, the screen flickers, and the directory isn't added to the current session.

What Should Happen?

The new directory should be added to the Claude Code session, and Claude should be able to work with the new repo from the current session.

Error Messages/Logs

Steps to Reproduce

1. Fire up Claude Code
2. Type /add-dir and give a valid path to the desired directory
3. Watch the screen flicker, and new directory not get added.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.101

Claude Code Version

2.1.105

Platform

Google Vertex AI

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_