Tabhand lets Claude Code, Codex, Cursor, OpenCode and 15 other AI agents use the Chrome you're already signed in to. Each agent opens its own background tabs, grouped under its name and muted, so Chrome never jumps in front of you and you keep working. An agent can only reach the tabs it opened, never yours. Every agent gets its own cursor you can watch, and one click pauses them all. One command sets it up: npx tabhand setup. Free, open source (MIT), and it runs entirely on your Mac.