The Anatomy of an AI Agent: Memory, Tools...

Everyone's talking about AI agents. But most explanations jump straight to frameworks — LangChain, CrewAI, AutoGen — without explaining what an agent actually is under the hood. Before you pick a framework, you need to understand the four building blocks every agent is made of: memory, tools, planning, and execution. Get these right in your head and every framework, every paper, every architecture diagram suddenly makes sense. Let's break it down. What Makes Something an "Agent"? A regular LLM c