This is a good start, and what problems does this solve IRL? As in, actual problems that happen? (Not just theoretically possible classes of problems.) I get the narrowest use-case, and then beyond that this seems otherwise doomed to become irrelevant over time rather than gain momentum and become something meaningful in any lasting sense.
Think bigger.
Then the meta solution will become self-evident.
You seem to be jumping from topic to topic without being able to express your thoughts very well.
Convenient in some ways (e.g. if you are only comfortable in JS), and does nothing useful in other contexts.
Nothing inherently wrong with it, other than it seems like a missed opportunity.
Is this more than a subset of Wordnik's Swagger?
That's hardly a relevant point or meaningful comparison. The discussion is about schema validators for TypeScript/JavaScript.
https://swagger.io/docs/specification/data-models/keywords/
This is a easier write, easier to read, compatible with JSON Schema alternative. Spartan Schema could be used instead of JSON Schema to make the document easier for humans to work with.
> Then the meta solution will become self-evident.
> Think bigger.
Are you going to share your big idea?