LangChain4j began development in early 2023 amid the ChatGPT hype. We noticed a lack of Java counterparts to the numerous Python and JavaScript LLM libraries and frameworks, and we had to fix that!

AI assets — skills, MCPs, agents, rules, commands, hooks — usually live inside a single Git repo. The moment you want them in another repo you copy-paste, and they drift out of sync with no source of ...