I would like to list tags where the tag wiki or tag wiki excerpt was recently edited or created. How can I do this?
It is not a problem if I get a few false positives by tags modified in other ways, such as merged or renamed, because those events are very rare and can be filtered afterwards.
The api documented at http://api.stackexchange.com/docs/tags (as of v2.2) can list all tags. It, however, doesn't seem to offer a way to sort by latest modification of the tag (as opposed to latest activity of questions with that tag). http://api.stackexchange.com/docs/wikis-by-tags can query the tag wiki contents and excerpt and the last edit time of these, which I can run on any candidates listed to verify that the tag wiki was indeed edited.