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I would recommend `zod` as a good typescript schema runtime validation library as well. It does require strict type checking to be on however.

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I use zod but it's a workaround. I use non standard syntax to define types.

If typescript emitted type information, we'd be able to automatically get runtime validation at the boundaries of our apps.

Alternatively, io-ts is more performant and has been around for a while longer. Although it does have a more functional interface.

I like typia for doing codegen basically in the way this request is asking: it hooks into the typescript API to create runtypes from plain old typescript

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