The subset of Standard Schema (https://standardschema.dev) the core accepts —
zod 4, valibot, and arktype all implement it, so any of them works as a codec
schema without adapters. Sync only: an async validator is rejected at runtime
(resolution is synchronous by design).
The subset of Standard Schema (https://standardschema.dev) the core accepts — zod 4, valibot, and arktype all implement it, so any of them works as a codec schema without adapters. Sync only: an async validator is rejected at runtime (resolution is synchronous by design).