[BUG] Windows Magnifier caret tracking doesn't work with Claude Code REPL.

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 Windows Magnifier with "follow text insertion point" enabled,
the magnified view doesn't track the cursor position as I type or navigate
within Claude Code's interactive prompt. The caret moves but Magnifier
stays fixed on the same area of the screen.

This works fine in other terminal applications and in Windows Terminal itself—
it's specific to Claude Code's REPL rendering.

Environment: Windows 11, WSL2 Ubuntu 22.04, Magnifier at ~2x zoom

What Should Happen?

Magnifier should track text input caret.

Error Messages/Logs

Steps to Reproduce

1. Enable Windows Magnifier (Win +)
2. Open Claude Code in WSL Ubuntu terminal
3. Run: claude
4. Type or use arrow keys in the prompt
5. Magnifier doesn't follow the cursor position

Claude Model

Not sure / Multiple models

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.84

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

WSL (Windows Subsystem for Linux)

Additional Information

_No response_