The Cursor docs indexing works very well and it’s probably the biggest thing missing from Windsurf. The other key is to stop the response when you see something going wrong and go back to your first message to add more context, like adding docs or links to library source files (a url to Github just fine) or attaching more files with types and annotations. Restarting your request with more context works better than asking it to fix things because the wrong code will pollute the probability space of future responses.