During September 2025, Caspar focused on enhancing the reliability and stability of the alibaba/loongsuite-go-agent repository, prioritizing bug fixes over new feature development. He addressed a build error in the SQL demo, ensuring consistent build success and stable demo functionality. Caspar also improved the robustness of HTTP client tests by introducing nil checks for HTTP responses and errors, along with enhanced logging in the httpClientExitHook, which allowed for more graceful handling of edge cases during test execution. His work leveraged Go and emphasized debugging, error handling, and testing, contributing to a more dependable continuous integration and developer experience.