I'm somewhat drawn to helpers like this, but what ends up being a pollutant for me is the system within a system paradigm. With emacs I have the same problem. I enjoy the UNIX philosophy where one program should do one thing and interesting things come from composing them. I'd love for similar helpers, as I've called them, to be implemented as cli tools. You would then call them from vim for example. Interactivity would be sacrificed, but I don't value it lot. This probably makes me a purist or some other -ist.