Type utilties for creating nominal/branded types in TypeScript

Flippin' great branded types for TypeScript!

Cross-cutting branded types and chain primitives shared across @agenticprimitives/* packages.

Universal Bitcoin signer library with branded types and pluggable CryptoBackend

Glean's schema codegen: introspection to schema model, branded types and graph accessors

Branded types, math utilities, and formatters for Silo Finance SDK

Functional runtime validation DSL with branded types, bigint, and composable rule constructors for TypeScript.

This library contains utilities to create and manipulate branded types in Typescript. Branded types are types that are identical to another type, but are considered distinct by the Typescript compiler. This can be useful for creating types that are more s

Shared utility package for string transforms, async helpers, HTTP calls, typed accessors, lightweight signals, and branded types.

Type-safe GraphQL middleware pipeline. Zod validation + branded types + builder pattern.

Per-address-system postal reference data + branded types (USPS street suffixes, US ZIP codes). Pure, zero-runtime-dep — the shared canonical home for postal-system primitives the parser, resolver, and synthesis layers all reach for.

Extra Effect Schema codecs — hex-string, prefixed-hex, colon-hex, and byte-level schemas with branded types, decode/encode, and arbitraries.

Pagination, filtering, and result set utilities with native branded types

ESLint rules enforcing branded type safety: ban casts, direct construction, and mutation of Zod branded types

Effect Schema definitions for hexadecimal wire formats — strict, colon-delimited, prefixed, and byte-level schemas with branded types.

Zero-runtime branded types for tsgonest validation constraints — type-safe alternative to JSDoc tags

TypeScript types and branded types for the OpenAlex citation graph API

Type utilties for creating nominal/branded types in TypeScript

Branded types

Branded types, type guards, and type utilities for Outfitter