AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
Why it matters
If your AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → only needs page text, a full browser session is wasted latency and spend. Fetch returns HTML or an image from a single URL call with no session lifecycle to manage.