[BUG] VS code extension extremely slow @ autocomplete on v2.1.29

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?

after updating to latest version v2.1.29, trying to @ mention a file in the vscode extension is really slow, takes around 5-8 seconds for the list of files to show up.

What Should Happen?

speed should be the same as v2.1.25. or at least ideally it should mimic the cli's speed when trying to populate the autocomplete poup

Error Messages/Logs

2026-02-02 09:11:06.922 [warning] Ripgrep search failed, falling back to VSCode findFiles: Error: spawn c:\Users\vendor\ripgrep\x64-win32\rg.exe ENOENT

Steps to Reproduce

1. Install latest version of vscode extension
2. Try to @ mention a file
3. autocomplete popup takes 5-8 seconds

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

v2.1.25

Claude Code Version

2.1.29 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_