Yes, stockfish is confined to moves within a chess game so you can stop playing the game.

Can we say the same thing about the agents? Current, probably. But doesnt it look like everyone is spending all their effort integrating&connecting them everywhere, so they are not confined & do more on behalf of us?

It's easy to imagine a scenario where we would just shut down a very intelligent agent cluster. Is it hard to imagine though the same agent can have also access to that to prevent us from doing it? this defense would be more plausible if we weren't racing to give them every tool&act.