Worked on enhancing tool argument processing in the quarkiverse/quarkus-langchain4j repository by introducing JSON Schema-based signature mapping, enabling support for collections within tool arguments. Leveraged Java and API design skills to implement JSON Schema-driven argument processing across the tool invocation layer, allowing for more complex and flexible argument structures. Developed a suite of demonstration tools, including functions for summing numbers, evaluating test data objects, and finding factors, to showcase the expanded capabilities. These improvements increased interoperability and flexibility, aligning with business goals of easier tool integration and scalable pipelines, while providing practical demonstrations for stakeholders and future development.