Cognition · Software component

Page State Observer

Software componentCognitionCognition & Memoryarc:PageStateObserver

A perception component that captures the current web page state, including screenshots and visible interface elements, as the observation the agent and evaluators reason over.

Responsibility. Provides current page-state observations for action selection and step evaluation.

Also known as: Screenshot capture, Current page state

Direct neighbourhood (hover for relationship types)

Relationships

invokes dependency

External Website Ch3.3

sends data to dynamic

LLM Judge abstract Ch3.3
Web Navigation Agent Ch3.3

Design guidance

SHOULD supply page state so tool selection reflects task requirements, current page state, and available capabilities.

Classification

Quality attributes: Maintainability (ISO/IEC 25010)

Sources

Ch3.3: T. Nguyen, "Web Navigation and Interaction Benchmarks," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 3.3. ISBN: 9798244538229.