Worked on the NousResearch/hermes-agent repository to enhance Kanban messaging reliability and test coverage. Addressed a critical issue by updating the backend logic so Kanban workers could correctly call the send_message function, using the HERMES_KANBAN_TASK environment variable to align with intended task completion and notification workflows. Developed a targeted test suite in Python to validate the gating logic within send_message_tool.py, ensuring callable paths and potential failure modes were thoroughly covered. This approach improved system integration and reduced the risk of missed messages, while strengthening maintainability and regression safety through comprehensive unit testing and robust backend development practices.