Standard Schema

For entities that validate and transform data
For JSON Schema and entities that convert to it
The Standard Schema project is a set of interfaces that standardize the provision and consumption of shared functionality in the TypeScript ecosystem.
Its goal is to allow tools to accept a single input that includes all the types and capabilities they need— no library-specific adapters, no extra dependencies. The result is an ecosystem that's fair for implementers, friendly for consumers, and open for end users.
The specifications can be found below in their entirety. Libraries wishing to implement a spec can copy/paste the code block below into their codebase. They're also available at @standard-schema/spec on npm and JSR.
by @colinhacks, @fabianhiller, and @ssalbdivad