Feature summary (what you would like to be able to do):

The Wikisources have very similar uses of tools, and it would be convenient to set up default url and label pairs for these, especially when it comes to having these standard messages, showing in the user's preferred language, when going xwiki to be utilised as the wiki needs.

Use case(s) (describe the actual underlying problem which you want to solve, and not only a solution):

Available to be plugged into Mediawiki:Sidebar as wikis desire

Random searches used

randomwork-url | randomwork => {{ns:-1}}:Randomrootpage/Main | (translation)
randomauthor-url | randomauthor => {{ns:-1}}:Randomrootpage/Author |  (translation)
randomindex-url | randomindex => {{ns:-1}}:Randomrootpage/Index |  (translation)
randomportal-url | randomportal => {{ns:-1}}:Randomrootpage/Portal |  (translation)

Some general links that are not standard though would be useful

scriptorium-url | scriptorium => {{ns:4}}:Scriptorium | (translation)
subjectindex-url | subjectindex => (empty) |  (translation)
categoryauthors-url | categoryauthors =>(empty) |  (translation)

We would look to document them on the extension, and keep some documentation on mulWikisource

I am uncertain whether the policies in operation say whether this belongs in [[mw:Extension:Wikisource]] or in [[mw:Extension:WikimediaMessages]]