One of a key design principles in EDN is to be exclusively data exchange format. Which is true even for JSON where json-schema is something that sits on top of JSON itself. Same goes to EDN - in Clojure there is clojure.spec that adds schema like notation, validation rules and conformation. https://clojure.org/about/spec , something like this could be implemented in other languages as well.
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One of a key design principles in EDN is to be exclusively data exchange format. Which is true even for JSON where json-schema is something that sits on top of JSON itself. Same goes to EDN - in Clojure there is clojure.spec that adds schema like notation, validation rules and conformation. https://clojure.org/about/spec , something like this could be implemented in other languages as well.