This is made more complicated by the fact that some wikis (e.g. enwiki) use a gadget for reference previews instead of the built-in MW functionality.
Story
As someone reading a Wikipedia article, I want to be able to ask, on-demand, whether a given claim is corroborated by the source(s) cited alongside it, so that I can gauge how well-supported what I'm reading is and, where a claim appears unsupported, receive clear steps about how I can address it.
Background
This task was inspired by the work @Isaac and @Alaexis having been doing on detecting instances where published claims may not be supported by the source(s) they're accompanied by. [1][2]
Specifically, in talking about how we might integrate the above we came to think the most performant way of implementing this evaluation would be to either offer it on-demand or to generate suggestions in batches.
As we started thinking about this "on-demand" approach – that is, expose an affordance that would invite someone to explicitly say, "I want to know if this claim is corroborated by the source(s) it's accompanied by" – we came to think people reading Wikipedia might find such an affordance useful and by extension, offer a potential entry point into contributing.