Ya, cool name, but worse privacy than gorilla, more awkward than llm.sh and why would I ever get the Microsoft version of something I can get elsewhere without the worry that I'm about to be devoured by a corporate anglerfish.
It is withfig/autocomplete. The only difference from their runtime is that this gives results directly in the console, instead of using a graphical overlay. I believe that means you could use this in an SSH session.