I've been playing with Cursor (albeit with a very small toy codebase) and it does seem like it could do some of what you said - it has a number of features, not

I've been playing with Cursor (albeit with a very small toy codebase) and it does seem like it could do some of what you said - it has a number of features, not all of which necessarily generate code. You can ask questions about the code, about documentation, and other things, and it can optionally suggest code that you can either accept, accept parts of, or decline. It's more of a fork of vscode than a plugin right now though. It is very nice in that it gives you a handy diffing tool before you accept, and it very much feels like it puts me in control.