Hallo,
MediaWiki has change tags, which are used for a bunch of things - mobile edits, visualeditor, etc.
The page that describes the relevant database table is https://www.mediawiki.org/wiki/Change_tag .
The table has a column called ct_params, described on that page as "Parameters for the tag, presently unused."
Why is it unused? Is there a reason not to start using it?
-- Amir Elisha Aharoni · אָמִיר אֱלִישָׁע אַהֲרוֹנִי http://aharoni.wordpress.com “We're living in pieces, I want to live in peace.” – T. Moore