Gadgets statistics on each of the wiki project pages linked from https://meta.wikimedia.org/wiki/Gadgets#Gadgets_used_across_wikis are super valuable. Most likely, they are generated and frequently updated via the EranBot https://github.com/eranroz/wiki-gadgets-statistics.
The problem with those pages is that a majority of gadgets mentioned on them appear with a red link as they don't have a page yet on meta-wiki. So, it is hard to obtain any information at all about these gadgets if they are not well-known and have proper documentation elsewhere.
Probably, this can be addressed with help from a bot that helps link the Gadget to existing documentation on a Wikimedia wiki. If there isn't one that exists, then there can be two alternatives:
- Add a link to the Gadget's source or definition page.
- Create a page on meta-wiki for the Gadget with missing documentation following a consistent template (name, description, gadget image, source, how to install, definition page, etc.).
At the very least, updating documentation for most-used gadgets (such that it is consistent and complete in relevant venues) link from: https://meta.wikimedia.org/wiki/Gadgets#Gadgets_popular_on_wikis might be worth it. Not sure if this is part of a bigger project already.