That's the terminology they have chosen because they believe they are "in control". It's a purely psychological thing, not different from calling different DB s

That's the terminology they have chosen because they believe they are "in control". It's a purely psychological thing, not different from calling different DB servers "master" and "slave". When I explain things to people, I say: the LLM is a big mouth, and it is a big mouth without hands. It can only talk. The agent is what gives some hands to the LLM, and then it can do some work.