You can make a workboard or something in https://phabricator.wikimedia.org/tag/mediawiki-codesniffer/ which would be easy to manage ?
Adding a tracker would mean that you will have to add in blockers and blocked by correctly every time (headache).
That's what I had in my mind, that there are other ways how to achieve the assumed aim, but I wanted to understand the purpose of the task first. I've tried to get some more info from @Lethexie on IRC, and the result was, that first I'll wait to see what is (s)he going to do with it and then I'll possibly suggest better way, how to handle it.
I would create a milestone of MediaWiki-Codesniffer (perhaps #mediawiki-codesniffer-gsoc2016 or so) where you could have the workboard as you'll need.
Re the workboard: click the MediaWiki-Codesniffer here and you'll see it. If not, you'll find the item "Workboard" in the menu on the left. Feel free to ping me on IRC should you need any assistance.