@lucid-softworks/schema-primitives

Primitive schemas for strings, numbers, booleans, literals, null, dates, bigints, unknown values, and impossible values.

import {
  literalSchema,
  numberSchema,
  stringSchema,
} from "@lucid-softworks/schema-primitives";

const username = stringSchema({ minLength: 3, maxLength: 30 });
const status = literalSchema("ready");
const port = numberSchema({ integer: true, minimum: 1, maximum: 65_535 });

Numbers are finite by default. Regular-expression state is not mutated while parsing, and literal output types remain narrow.