[BUG] Claude doesn't see LSP tool on CC >=2.1.0 (even with ENABLE_LSP_TOOL=1)

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?

if you start CC

ENABLE_LSP_TOOL=1 claude

and ask it if it has LSP tool - it says there is no LSP tool available

<img width="287" height="124" alt="Image" src="https://github.com/user-attachments/assets/450fc6ae-6a85-4358-bc32-dda1a09fe6b7" />

What Should Happen?

It should see and provide info about LSP tool
this works on CC <=2.0.76
<img width="251" height="103" alt="Image" src="https://github.com/user-attachments/assets/791fb40a-7d07-483a-9188-7e56f8372daf" />

Error Messages/Logs

Steps to Reproduce

1. start cc >=2.1.0 with ENABLE_LSP_TOOL=1 claude
2. ask if it has LSP tool

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.76

Claude Code Version

2.1.4

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_