AI agent
An AI agent is an AI system that can take actions toward a goal, not just answer: it plans steps, uses tools such as a browser, email or code, checks results and continues until done or stuck. Agents can save time on multi-step tasks but need clear limits.
In one line, for a 12-year-old
An AI agent is an AI that doesn't just tell you how — it goes and does the steps for you.
An example
An agent compares three moving companies' websites, fills in quote forms and drafts an email with the results for you to approve.
Why it matters to people
An agent acting in your name can make purchases, send messages or share data. Keep a human approval step for anything that costs money or can't be undone.