Some people open a claude code session and just talk with it. And some use hooks, custom commands, agent-teams..and so on. You can definitely be a power user. But I’m sure whether that translates to actual “power” is up for debate.
I would simply ask the claude code to use the hooks and custom commands and agent teams for me.
In order to ask it to use them, you should be first aware of them. Non-power users aren't.
I would ask the claude code what I should be aware of if I was a power user.