Add a "Check image usage" link to the toolbox on image pages. Semi-obsolete, since it's mostly useful for Commons, and a similar feature is enabled there by default.
Semi-automatic helper script for sorting images tagged with {{Convert to SVG}} by type. FIXME: Been a while since I tested this, may or may not still work.
Semi-automatic helper script for replacing the deprecated {{CopyrightedFreeUse}} tag with {{NoRightsReserved}}. Obsolete, as the task has been completed.
Semi-automatic helper script for sorting images in Category:Uploader unsure of copyright status. Works again, but somewhat useless since the category has been tagged with __NOGALLERY__.
Used to be a patched copy of Sam Hocevar's "godmode-light" script (essentially providing non-admin rollback). Was unmaintained, broken and essentially obsoleted by WP:ROLLBACK. Blanked except for a historical comment.
Add a toolbox link for IP user/talk/contributions pages to check the IP against multiple DNSBLs, courtesy of robtex.com. Useful for detecting open proxies, but needs some nontrivial interpretation. Semi-redundant, since a similar link is now provided in the page footer.
Semi-automatic helper script for substing deleted (or about-to-be-deleted) userboxes. Currently does nothing by default, but could be used by setting the appropriate config variables. FIXME: May need some updating to work fully.
Adds a namespace selector for filtering your watchlist. Mostly obsolete, since MediaWiki now has an equivalent feature. FIXME: Could perhaps be rewritten to replace the MediaWiki selector with a client-side filter instead, for improved responsiveness. May not be worth the bother, though.