> I imagine an LLM would be very good at writing Elisp to leverage EMacs’ strong core functionality
Yes, they are pretty good. I have set up GPTel (an excellent Emacs package for interacting with LLMs) with some tools allowing it to run Elisp, inspect files (Elisp functions know what file they were defined in, so it's easy to find stuff) and read Emacs documentation. LLMs use this to good effect, and iterate on my config very nicely.
Indeed. I always used Emacs, but not, thanks to AI agents, Emacs is better than ever, as it can write the lisp I can't write, and it can read the docs I don't have the time to read.