These open-source libraries provide robust primitives and abstractions for managing state and concurrency in Clojure.
clojure/core.async is a Clojure library that provides core.async channels and go blocks for asynchronous and concurrent programming, which fits the intent of a concurrent programming library, though it focuses on the CSP model rather than covering STM, agents, or all listed features.
ZIO is a functional effect system for the JVM that models asynchronous and concurrent programs as pure, composable values with typed error handling and dependency injection. Its core identity is built on fiber-based concurrency, where lightweight, non-blocking fibers execute millions of concurrent tasks with structured lifecycle management, and a dual-channel error model that separates expected business failures from unexpected system defects at compile time. The system provides effect-typed dependency injection through a layer-based dependency graph, pull-based reactive stream processing with
ZIO is a concurrency and effect library for Scala on the JVM, not for Clojure, so it does not match your request for a Clojure-specific library with core.async channels, STM, and agents.