KDE Bugtracking System
Triggers: !kdebugs, !kbugs
Try it
Kagi would openhttps://bugs.kde.org/buglist.cgi?quicksearch=regex+tester
Run @kdebugs in Kagi for Kagi's own results from bugs.kde.org only
URL pattern: https://bugs.kde.org/buglist.cgi?quicksearch=query
Searches bugs.kde.org, filed under Tools.