A small number (I have no idea even roughly how many) of extensions add their own maintenance scripts, e.g. Extension:Semantic MediaWiki adds several of its own. Should these be listed on this page as well, in a separate section (or using some other presentation)?
Topic on Manual talk:Maintenance scripts/List of scripts
(The only other one I'm immediately aware of is Extension:MediaWikiAuth, which includes reattributeImportedEdits.php.)