views extension

Hey guys

I've built an external (mini-)module with the help of this page: http://views-help.doc.logrus.com/help/views/api

using the views_api(),
with this module I only wanted to introduce new tables and fields to the views module, view type "Node".

Right now it looks good to me, but I still have this gut feeling telling me that I should ask you guys the following question...
– how do I ensure that this module is 'safe' ?
– so far I've included the views_api(), views_handlers() and views_data()? is there another method I need to include?