Q: custom commands vs @includes (Re: Boris' Talk)

Hey CC team,

I'm trying to improve my prompting/project/task structure as good as possible and am working with Custom commands quite a bunch lately.

I saw Boris' Talk the other day about Claude Code and think I heard him basically say custom commands and includes in one sentence as if they were basically the same.

So except the obvious UI differences and the $ARGUMENTS interpretation, is there a real difference between executing a command and @including some text file?

Auto completion doesn't seem to show any files from .dotfolders so that's obviously a thing if I would use @includes from such folders but other than that I can't see any real difference.

Curious to hear your thoughts on that.