Since this is not code per se but needs to still be read and understood over time, it would be helpful if there was a "Comments" attribute for most components, queries, transformers, etc.
In the heat of the moment I will know what I am doing when I design things but my later self and others will not have access to my current mental state. Comments would be a good thing to help explain some reasoning or why this particular query has this transformer. Especially since I cannot readily see what uses what.