Someone here tried it but we quickly gave up on it.

- It's ugly and borderline impossible to write by hand because it's JSON. To document something complex your JSON objects get 20 layers deep and you don't get any decent commenting.

- Because it's so hard to read, it's useless by itself as a guide to how the JSON should be structured.

- Someone would change the code and always forget to update the schema to match. It only makes sense if you're somehow generating the code from the schema.