Offrun

Offrun is a free Mac app that manages multiple AI coding agents from one workspace, including Claude Code, Codex, Antigravity, Grok Build and Muse Code. Each agent works in its own git worktree so two agents on the same repo do not edit the same files, and a second agent can review a diff before you ship. You can connect multiple logins per agent, and the app runs on your own agent subscriptions.