[dragonwriter]

This, to be evaluated, desperately needs more realistic examples, as well as much better discussion of how the rules relate to the principles of Hexagonal architecture, and what benefit they provide in that context.

As it is, I can, with some effort, find some justification for some of the rules in the context of Hexagonal architecture, but as presented its not immediately clear even what part of Hexagonal architecture the various elements are relating to.

Perhaps most importantly, it needs to clarify what the application itself and the "rails adapter" look like here.