produce full sorted list of all existing links, mentioning each one once and once only (for some reason, this seems to include nonexisting links too. Oh, well..)
Other permutations of the above work as one would expect.
Saying that, I've had to munge the code for subpages (e.g. ToothyWikiInternals/ListsOfLinks) to work correctly - the original would incorrectly display /ListsOfLinks and a broken link.