During November 2024, Lukas Pietzschmann developed a file-based filtering feature for call context queries in the flowr-analysis/flowr repository. He focused on backend and API development using TypeScript, introducing location-based restrictions and new configuration options to the query system. Lukas addressed the handling of undefined file attributes, which improved the robustness of filtered analyses and prevented query failures. His work enabled more precise, targeted analysis based on code location, supporting faster debugging and data-driven decision-making. By aligning the feature with project goals, Lukas enhanced traceability and efficiency in the FlowR analysis workflow, demonstrating depth in backend engineering and system design.