Intelligent Agent

The concept of an intelligent agent is one of the most fundamental building blocks of AI thinking. An agent is a system that receives signals from its environment, interprets them, evaluates them against its goals, and then selects an action. A simple chatbot and a multi-step agentic workflow system can both be understood through this logic. The critical point is this: a good agent is not just a system that makes correct predictions; it is a system that can take the right action in the right context. That is why agent design must be discussed together with state representation, action space, feedback, goal structure, and uncertainty management.