It's autonomous AI agents acting on behalf of their users/or themselves.

Ohhh I think I get it. So my dash-cam would be considered agentic then because it automatically starts recording if my car is jostled while parked. That's a neat idea, though unlike my dash-cam, I don't think modern AIs are competent enough to act as independent agents like that. I think we should hold off on giving large language models autonomy, for the AI's own sake.