WikiFunctions, I believe, has a larger purpose in the context of Wikimedia wikis, and that is they are building a library of functions that can be called direct

WikiFunctions, I believe, has a larger purpose in the context of Wikimedia wikis, and that is they are building a library of functions that can be called directly from wikitext and the code will be evaluated automatically when the page is rendered. I think the idea is to provide an easy way to embed dynamic content into the text of a Wikipedia article. This should provide a nice compliment to the way WikiData is used to dynamically insert data into articles. Note: I worked for the Wikimedia foundation in the past, however, I wasn't involved with WikiFunctions. I just have some vague memories of internal product planning discussions about the feature.