Worked on the datacommonsorg/website repository to enhance the robustness and observability of topic cache loading. Focused on backend development using Python, the work introduced validation logic within the topic_cache._load_nodes function to detect nodes missing both relevantVariableList and memberList, addressing potential data integrity issues. Logging was added to surface these data quality problems, enabling faster triage and improved monitoring. To ensure reliability and prevent regressions, a targeted unit test was implemented to cover the missing-node-list scenario, increasing test coverage. The approach emphasized maintainable code, thorough testing, and clear logging, contributing to more reliable topic caching and streamlined debugging.