clojurespec

Clojurespec is a community-supported library for the Clojure language that extends the built-in clojure.spec framework to reinforce API contracts and streamline testing. It provides a cohesive layer for defining, validating, and documenting the expectations placed on functions, data structures, and public interfaces.

Its core is designed to work with clojure.spec without replacing it. Developers define specs with the standard s/def and s/fdef constructs and use the library to instrument runtime checks, generate representative data with test.check, and produce human-friendly documentation from the specs. The goal is to connect specification, validation, and testing into a single workflow.

Typical usage involves declaring function specifications that express input and output constraints, enabling automatic validation at call boundaries, and generating property-based tests from those specs. The project also provides tooling to render spec coverage reports and to extract examples and descriptions for API docs.

Clojurespec is maintained by volunteers and is not part of the official Clojure project. As such, it may evolve independently from core.clojure.spec, and users should review compatibility notes when upgrading dependencies. See also references include clojure.spec, test.check, and clojure.test.