I want to discuss case 14789 ( https://pharo.fogbugz.com/f/cases/14789/Nautilus-assumes-a-class-always-understand-package) because a class should be browseable even without a definition. Anonymous classes are still classes.
If Nautilus project cannot deal with the whole Smalltalk power then it is poorly designed and I wonder what's the advantage over the old OmniBrowser... Hernán