offstage

offstage gives Claude Code, Codex, and opencode a second, logged-in macOS account to work in. Simulators, Xcode UI tests, and the app the agent just built open on that account's desktop, so your screen, keyboard, and mouse stay yours. It reads each command before it runs: GUI work goes to the helper account, headed browser runs go to a Linux container with a virtual display if Docker is installed, headless tests stay where they are, and installers are refused. Ships as an MCP server and a CLI. Free and MIT licensed, for Apple Silicon Macs. Built by Viraat Das.