During June 2025, Fengluo worked on the alibaba/spring-ai-alibaba repository, focusing on refactoring the tool-calling module to unify time processing and JSON handling. He introduced a dedicated TimeUtils class and enhanced the JsonParseTool, streamlining time-related workflows and simplifying JSON parsing and serialization. The work involved reorganizing auto-configuration and service classes to clarify ownership and improve maintainability, ensuring that future integrations would be more reliable and easier to manage. Using Java and Spring Boot, Fengluo applied skills in JSON processing and refactoring to lay a solid architectural foundation, demonstrating depth in modular design and codebase organization for long-term sustainability.