Keywords: Seven-layer AI agent architecture, foundation models, agent frameworks, multi-agent systems, RAG (retrieval-augmented generation), state management, CrewAI, AutoGen, LangGraph, LlamaIndex, AutoGPT, computer-use agents, Claude, OpenAI

A major transformation is underway in artificial intelligence, ushering in a new era of human–machine collaboration. Agentic AI, or AI Agents, go beyond scripted responses—these