PaperAgent

Apr 21, 2026 · Artificial Intelligence

How to Understand Agents: From Resource‑Constrained Decisions to Contextual Cognition

This survey clarifies the essence of AI agents as resource‑limited sequential decision‑making and contextual‑cognition systems, introduces a formal definition, outlines a five‑stage evolution of large models, presents a four‑loop architecture, and illustrates the concepts with the OpenClaw agent case study.