dom0 is a free browser add-on designed for Chrome that facilitates programmatic automation tailored for AI agents. With a local command-line interface, it communicates via a WebSocket connection to execute commands and fetch results without sending data to external servers. Key features include capturing accessibility tree snapshots, navigating and interacting with page elements, taking screenshots, and managing browser tabs and windows. Users can also read and manipulate cookies and storage, providing comprehensive control over the browsing environment.

The tool operates using the Chrome DevTools Protocol, allowing it to automate various browser interactions seamlessly. It requires specific permissions, such as access to the debugger and active tabs, to function effectively. Notably, all operations and data remain on the user's local machine, ensuring privacy and security. With its robust set of features, dom0 is positioned as a powerful solution for developers looking to enhance their browser automation capabilities.