Check the model

[Sparxxx]

Is it possible to check the model on errors?

Things like attibutes declared inside an interface or weird relations.

[Eve]

There is a model validation tool.  Although it won't necessarily pick up everything you see as an error.  Such as attributes inside interfaces.  My understanding is that they are allowed as long as they're static.

Other than that you'll have to write an addin to iterate over the model and make the checks you want.