[BUG] Escape key doesn't cancel /add-dir dialog in JetBrains Rider

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 using the /add-dir command in JetBrains Rider, pressing Escape does not cancel or close the directory selection dialog. The user cannot exit the flow using the keyboard.

What Should Happen?

Escape should cancel the /add-dir operation and close the dialog, returning to the normal chat state.

Error Messages/Logs

Steps to Reproduce

1. Open any project in JetBrains Rider with the Claude Code extension installed
2. Open the Claude Code in Rider's Terminal
3. Type /add-dir and press Enter (or select it from autocomplete)
4. When the directory selection dialog appears, press Escape
5. Observe that nothing happens - the dialog remains open

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Claude Code v2.0.76

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

IntelliJ IDEA terminal

Additional Information

• OS: macOS (Sequoia 15.4.1)
• IDE: JetBrains Rider 2025.3.1 (Build #RD-253.29346.144, built on December 18, 2025)