Intro into AI Agents

Published on Jun 2, 2026 / Tomáš Hendrych
JavaScript
AI

What is an AI Agent?

  • An AI agent is an autonomous entity that perceives its environment through sensors and acts upon that environment using actuators to achieve specific goals. AI agents can be simple or complex, depending on their design and the tasks they are intended to perform. They can range from basic rule-based systems to advanced machine learning models capable of learning and adapting over time.

AI agents loop steps 5 steps:

  1. Perception: The agent gathers information about its environment through sensors.
  2. Reasoning: The agent processes the perceived information to make decisions based on its goals and knowledge.
  3. Planning: The agent formulates a plan of action to achieve its goals based on the reasoning step.
  4. Action: The agent executes the planned actions using its actuators to interact with the environment.
  5. Learning: The agent learns from its experiences and