One thing I think could really make a difference would be wrangling the reference data into some kind of semi-structured format with an API/machine readable format like the Node docs: https://nodejs.org/api/events.json

There are a lot of documentation, code completion etc type things out there that currently rely on manual updating (eg Tern.js) or scraping (eg devdocs.io) to maintain this kind of data. It'd be good if there was a canonical source.