...The snapshot command returns an accessibility tree where every interactive element receives a unique reference, allowing agents to select elements deterministically without repeatedly querying the DOM. More than 50 commands cover navigation, forms, screenshots, network activity, storage, files, tabs, frames, and debugging. Built-in observability features include video recording, streaming, debugging, profiling, and page diffing, while dedicated workflows support modern applications through network control, React and Web Vitals analysis, init scripts, and Next.js and Vercel integrations.