Give procedure recommendations for parameters of a procedure call
When calling a known procedure and specifying the parameters the extension could provide recommendations on what other procedures can be used to get the kind of data that is expected.
For example, when writing
CC "Core" GET_CLASS_NAME classid:(...) then the extension could recommend or hint at using
GET_CLASS_ID before that. This kind of help would be a bit of a "backwards approach", the user knows they want X, so they write the command for X, but they need Y to do it so the tool provides recommendations / hints for how the user can get Y etc.
Doing this for custom procedures defined by the user might be a bit ... tricky and require guessing what it's for and what the parameters are for. Maybe a first version would be possible where this works for API-commands, since we know their parameters and we know what they return.