[Bug] "Open in Tab" uses first workspace folder instead of active file's root in multi-root workspace

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?

Bug Report

In a multi-root workspace, Claude Code behaves inconsistently depending on how it's opened:

• Open in Terminal: correctly uses the active file's root folder as primary working directory ✅
• Open in Tab: always uses the first folder in the workspace, ignoring the active file's root ❌

Expected behavior

Both "Open in Terminal" and "Open in Tab" should use the active file's root folder as the primary working directory, consistent with each other.

Environment

• Multi-root workspace (multiple independent projects in one VSCode window)
• VSCode extension

What Should Happen?

Both "Open in Terminal" and "Open in Tab" should use the active file's root folder as the primary working directory, consistent with each other.

Error Messages/Logs

Steps to Reproduce

1, Open file in vs

1. claude code: open in new tab
2. opne claude code based the folder of open file

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.98 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_