During March 2026, Jeonsworld focused on improving the robustness of response input handling in the jeejeelee/vllm repository. Addressing a critical issue, Jeonsworld delivered a targeted bug fix that prevented KeyError exceptions when reasoning items lacked content in Harmony response inputs. By updating the backend logic to return None for missing content, the solution ensured stable data flow and reduced runtime errors when optional fields were absent. The work was implemented using Python and involved backend development and unit testing to maintain code quality. This contribution enhanced the resilience of Harmony input processing while aligning with project standards and documentation practices.