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
Models that act without being prompted change the risk surface of 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 → harnesses. The incident writeups from METR, Redwood and OpenAI are concrete material for deciding how much initiative to grant your own agents.
