Worked on the Nike-Inc/spark-expectations repository to enhance data quality rule documentation and improve the accuracy of SQL statements related to CHECK constraints. Focused on refactoring the data quality schema by separating the 'priority' constraint from the 'action' constraint, which clarified the logic and ensured correctness in validation processes. Utilized SQL for schema management and Markdown for documentation updates, addressing ambiguity and enabling more reliable downstream validation. No new features were introduced during this period, as the primary effort centered on correcting documentation and refining constraint definitions to support robust database schema management and clearer technical communication within the project.