Module:Check for unknown parameters has been added to this wiki
From Fallen London Wiki
Hey everyone! As was requested a few weeks ago I've added Module:Check for unknown parameters to the wiki and added it to {{Item}}, {{Storylet}}, {{Card}} and {{Action}} (pending sysop action). This means that when you in future add a parameter to any of those templates that isn't defined in the template you will get an angry red error message when using preview and the page will get added to a maintenance category.
Let me known if anybody wants it added to anymore templates.