The Technical Wishes team deals with many small projects and features, both current and historical. Decide when we should add our team as a secondary "author", when we are the "maintainer", and publish this list. In some cases (like ReferencePreviews) we've only added a feature to an existing and externally maintained extension. In others, we've rewritten significant amounts of code (like Cite) and have a duty to monitor for errors, at least for some period of time.
* #advanced-search
* #articleplaceholder
* #Cite – technically only the #reference_previews feature, but we rewrote the entire extension in the process.
* #cognate extension
* #electron-pdfs extension
* FileExporter/FileImporter extension pair, a.k.a. #move-files-to-commons
* #mediawiki-extensions-interwikisorting
* #mention-notification, part of #notifications
* #reference_previews, part of #page-previews
* #revision-slider
* #mediawiki-extensions-teahouse
* #tool-attribution-generator a.k.a. Lizenzverweisgenerator
* #two-column-edit-conflict-merge
There are a lot of tools on wmflabs.org as well, but I guess these do not matter for what this ticket here is about.