[jntrnr]

We're considering moving the new Rust language service over to this protocol, or possibly, having it as a default protocol while supporting other protocols.

Since I've been learning it recently, maybe some points to help understand it:

It's just the protocol piece. Currently, VSCode will stand up the language server and communicate using the protocol over stdin/stdout. Nothing to say they couldn't support http servers in the future, but currently it seems lower level that that.

They do support hovers, which you can use for seemingly anything. We currently are using them for type information and showing API docs.

I'm hoping this takes on with other editors, as once they support it, then they'll get the stronger language support the servers provide, which can do hovers, on-the-fly error checking, code navigation, and more. It's not perfect, but as a baseline set of features, it's a pretty good starting set.