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What Is an AI Agent?

An AI agent is a software system that receives goals, makes decisions, uses tools, and takes actions to complete tasks. It observes the results and adjusts its behaviour accordingly.

8 min•By Priygop Team•Updated 2026

What Is an AI Agent?

An AI agent is a software system that:

1Receives a goal from a user or another system
2Decides what steps are needed to reach that goal
3Selects and uses tools to execute those steps
4Observes the results of each action
5Adjusts its plan based on what it finds
6Continues until the goal is complete or it needs human help

An agent is not the same as a chatbot. A chatbot responds to messages. An agent works toward outcomes.

A simple definition:

An AI agent is a software system that can receive a goal and take a sequence of actions to achieve it, using tools and observing results along the way.

Core Agent Properties

Goal-directed: the agent works toward a defined objective, not just responding to a single question
Action-taking: the agent can call functions, access APIs, read files, send messages, or perform other real-world actions
Observable: the agent checks the result of each action before deciding what to do next
Stateful: the agent remembers what it has done and what it has found during the current task
Adaptable: if a step fails or produces unexpected results, the agent can adjust its plan