There's a simple metaphor of "text-in, text-out" that xiki stays true to. It interacts with shell commands, scripts, text files, just about anything. You can call a shell command directly, wrap some lightweight code around it let its output be interactive, or wrap a full script around it.
> it is rarely intended to be used by the shell itself
I'm going to be post a new video very soon showing a new way of jumping quickly back and forth between your standard shell and Xiki, and making them work together, which I think is a missing piece that solves some of the awkwardness you allude to. I wish I'd gotten it out there before this thread!