[BUG] Agent teams don't create agents on own worktree

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 I start in 2.1.50 claude code with 'claude --tmux -w' and then ask it to create an agent team with each agent in a different worktree, it just doesn't work. They all start on the same worktree and keep editing files over each other - it's a circus.

Then when I complain to the team lead, he tells me it should have worked because he started the agents with "isolation: worktree".

What Should Happen?

Agents in a team are all working in separate worktrees.

Error Messages/Logs

Steps to Reproduce

Start claude in a project: claude --dangerously-skip-permissions -w --tmux

Prompt: "Start a team of 3 agents, each on their own worktree to add the name of their worktree to the file WorkTrees.md, then once they are done, merge all the files into one."

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.52

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

It works with subagents.