A plugin to extend the functionality of the mediawiki article editor?

Question

Wiki engines

Please tell me a plugin for expanding the functionality of the article editor of the mediawiki engine.
What is "out of the box" is not enough

Answer 1

https://www.mediawiki.org/wiki/Extension:WikiEditor
https://www.mediawiki.org/wiki/Extension:WikiEdito...
And it has been in distribution for a long time. You just need to turn it on.