User:X!/userrights.js Source: en.wikipedia.org/wiki/User:X!/userrights.js

addOnloadHook(function () {
    var rights_isAdmin = (mw.config.get('wgUserGroups').toString().indexOf('sysop') != -1);
    if (!rights_isAdmin)
        return; //Restrict to admins.
    if (mw.config.get('wgNamespaceNumber') != "2" && mw.config.get('wgNamespaceNumber') != "3")
        return;  // restrict to User and User talk

    var title = mw.config.get('wgTitle');

    mw.util.addPortletLink('p-tb', 'https://demo.azizisearch.com/lite/wikipedia/page/Special:Userrights/'+title,
                   'User rights', 't-userrights', 'User rights for "'+title+'"');

});