A Standard Schema for Typescript validation

Standard Schema is a common interface designed to be implemented by JavaScript and TypeScript schema libraries. The goal is to make it easier for ecosystem tools to accept user-defined type validators, without needing to write custom logic or adapters for each supported library. And since Standard Schema is a specification, they can do so with no additional runtime dependencies. Integrate once, validate anywhere.

I was out of the loop with this one but finally catch up.

Standard Schema is a schema for typescript validation libraries, so they conform to one standard to interact with other parts of the code without setting hard dependencies.

That means that you can swap Zod for Valibot and they should work out of the box when interacting with request body parsers or AI libraries with structured output.