I'm sorry that this in no way answers your question, but... does anyone know if the LMS protocol is sufficiently rich enough to support AI co-piloting? It seems like it should, as it already supports extended autocompletes such as loop templating, but I wonder if a copilot would tax it.

That's how I'd hope it (AI co-coding) would arrive: not having to be custom baked into each editor, but hooked into a standard usable by even simple (non-IDE) editors.