During December 2024, Thynquest enhanced the checkmarble/marble-frontend repository by developing new API endpoints to retrieve decision data by score and to fetch rule execution distribution by status. Working primarily with YAML and leveraging skills in API Design and Data Modeling, Thynquest updated the OpenAPI Specification to reflect these changes and simplified the decision data DTO by removing non-required fields. This work streamlined data payloads and improved alignment between frontend and backend systems, facilitating more efficient data-driven analytics. The depth of the work lay in thoughtful schema refinement and careful integration, though the scope was focused on a single feature.