Structured Dom Observation And Element Targeting With Accessibility Tree

via “dom-to-text serialization with interactive element indexing”

🌐 Make websites accessible for AI agents. Automate tasks online with ease.

Unique: Uses a Watchdog pattern with event-driven re-serialization instead of full-page re-parsing on every state change, reducing overhead. Implements visibility calculation via viewport intersection, CSS computed styles, and z-index stacking context analysis. Maintains a stable element index mapping across DOM mutations, enabling consistent LLM references even as the page updates.

More efficient than Selenium's element finding because it pre-computes all interactive elements and their coordinates in a single pass; more accurate than regex-based HTML parsing because it uses actual CSS computed styles for visibility.