Styx

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Styx is a desktop app for developers who work with AI coding agents such as Claude Code, Codex, Gemini CLI and Cursor. It brings every repo, every running agent and every service login into one window, so developers can switch between projects without juggling terminals and editor windows. Each agent works on its own branch and its own copy of the code, so parallel agents don't overwrite each other or the developer's own work. Changes can be reviewed hunk by hunk, reverted a turn at a time, and merged only when the developer presses Land. Styx also controls what agents can reach. Developers log into Vercel, AWS, Google Cloud, Supabase, GitHub and their servers once, and credentials stay in the operating system's secure storage. Agents never hold the keys. When one needs to deploy or touch live data, it pauses and asks, and the developer grants scoped, time-limited access, confirmed with Touch ID for anything in production. Every request and approval goes into an audit log that can't be edited or deleted. Code, prompts and keys stay on the developer's machine. Styx is available now for macOS, with Windows coming soon.