[fmjrey]

Reminds me of what clojure spec is trying to do: create data specifications that can be named and reused via a registry. The metadata is just data on the shape of the data so it can serve as doc, validation, data generation, property testing, etc. Spec names are namespaced but no specific guidelines are given it's just organizational.

Separately clojure also allows for namespaced names for map entries, but again provides no specific guidelines on what namespaces should be: in code this could be a library name, but it could also be an entity name as suggested by datomic best practices.

The combination of both features, namespaced var/entry names associated with namespaced specs, seems to make more sense than using name parts conventions, but if you're not clojure all the way then the latter might be the only way.