[BUG] --tools "" still exposes LSP tool

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?

LSP is still included if you use --tools and don't include it

What Should Happen?

Only tools specified in --tools should be included

Error Messages/Logs

Steps to Reproduce

If you run
claude -p "List your available tools. Reply only with tool names." --strict-mcp-config --mcp-config "" --tools ""
It replies
LSP

You can still disable LSP with --disallowedTools, but that overwrites --tools, so you need to list every tool you don't want in --disallowedTools

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.75 is working, 2.1.76 has this bug

Claude Code Version

2.1.123

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_