A tool that runs Claude Code and Codex side-by-side in worktrees

I originally built this because I wanted to use git worktrees but didn't want my screen to be a mess of poorly labeled terminal windows. I kept adding features and released it open source, but the biggest moment for me was putting in Codex and Claude Code side-by-side.

They are both good models, but they catch different things and take different UI approaches. I used to run multiple Claudes together, which was helpful but they would often take the same approach. I find myself thinking more about architecture when confronted by two wildly different methods.

Interesting tool—running two models side-by-side to compare approaches.