Wow, this is great. An article about it would be awesome

Hi Mike, thanks for your response. As I said, from what I've understood, VSCode Copilot can read the classes opened in the explorer directly from the buffer, while Cursor can’t (or has some difficulty doing so), because it prioritizes the local file system over the buffer. For this reason, Copilot will be able to edit and process classes opened locally in Explorer, but nothing else (the same for Cursor). The delay you’re experiencing is likely due to the fact that VSCode has to retrieve all classes via the Atelier API when an ISFS (InterSystems File Service) connection is active. The only solution I’ve found is to work in client-side mode, so that Cursor can index the entire local file system and modify everything and all the classes are quickly accessible.

Oh wow this is really interesting, so is this compatible with server-side source control such as Embedded Git?