Deterministic Spatial State Engines: Formalizing Asynchronous DOM Topology Vectorization in Weavetab MCP — Weavetab Research

Deterministic Spatial State Engines: Formalizing Asynchronous DOM Topology Vectorization in Weavetab MCP

Published: 2026-08-27

Browser agents don

## The Real Problem with Browser Agents

Browser agents don't fail because they lack the ability to click or type. **They fail because they don't have a reliable, compact understanding of what is happening on the screen.**

When an LLM attempts to automate a web browser today, it is typically handed one of three fragile abstractions:
1. **Raw HTML / DOM Dumps**: 40,000 to 100,000 tokens of unrendered markup, CSS boilerplate, SVG paths, and hidden tracking scripts that flood the context window with noise.
2. **Screenshots & Vision Models**: Computationally heavy, slow (1.5–3s per turn), and imprecise when distinguishing subtle interactive bounds or scroll containers.
3. **Flat Accessibility Trees & Selectors**: Brittle references like \