More of a personal curiosity / pet peeve project of mine to see how far we can go, coming from discussion related to T229510:
Find out how many (and in which format, probably links if I won't find time to play with the API) of the metrics can be gathered for a team and the code bases it is supposed to steward. Obviously requires to know which code repositories that team owns but we have https://www.mediawiki.org/wiki/Developers/Maintainers for that, in theory.
Randomly picked Growth-Team. In my understanding, stewardship for extension repos (as I cannot easily split per sub-directory in MW Core) would be:
repository:"mediawiki/extensions/Echo" OR repository:"mediawiki/extensions/Flow" OR repository:"mediawiki/extensions/GettingStarted" OR repository:"mediawiki/extensions/GlobalCssJs" OR repository:"mediawiki/extensions/GlobalUserPage" OR repository:"mediawiki/extensions/GuidedTour" OR repository:"mediawiki/extensions/NewUserMessage" OR repository:"mediawiki/extensions/ORES" OR repository:"mediawiki/extensions/PageTriage" OR repository:"mediawiki/extensions/Thanks" OR repository:"mediawiki/extensions/WikiLove" OR repository:"mediawiki/extensions/WikimediaMessages" OR repository:"mediawiki/extensions/TheWikipediaLibrary" OR repository:"mediawiki/extensions/GrowthExperiments" as the basic search query to copy into any Gerrit dashboard on https://wikimedia.biterg.io
Taking the four items on T229510 :