In latest version there is not three categories needed, only one. For now, we manually set the local category for each wiki, inside the extension. If the wiki does not have a task category set, we show a more limited version of the tour. 

In the future, we will refer to Wikidata items for the relevant categories (wikidata.org/wiki/Q823569 and wikidata.org/wiki/Q9137504). We might also consider letting a community locally override the task category, though I would encourage the community to consider creating a category and tagging pages that have bad spelling/grammar. We've found through testing that newcomers find this kind of task very easy to do and it gives them a way to get start with editing that isn't scary.