The only documentation I can find about what is "required" for MW is about what is required to install it, not what is required to use it.

MW uses JS in many places, and in some of those it also has backward compatibility for no-script users, but is that always the case? Does MW strive to be completely functional for those who disable JS?

The question is raised because in https://phabricator.wikimedia.org/T192241 as we expanded the reliance of one of the MW extensions (namely AbuseFilter) on JS, we got some push back. Note that AbuseFilter also doesn't officially announce it requires JS even though it already contains code that would not work with JS. We are considering making JS an official requirement for AbuseFilter and would like to know how MW core approaches the same question.

Huji