[BUG] workingDirectory not updated on "! cd <dir>"

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?

The MCP client (Claude Code) sends a stale workingDirectory in _meta when calling MCP tools. If you start a session in repo A then cd to repo B, the MCP tools still think you're in repo A. This causes auto-detection of repo and head to return values from repo A.

What Should Happen?

Claude should pass the working directory of the current repo to the MCP

Error Messages/Logs

Steps to Reproduce

1. start claude in a repo
2. ! cd<repoB>
3. call an MCP method and print the workingDir inside of it

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.126 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_