During April 2025, Talao enhanced the coveo/platform-client repository by developing a targeted feature for API key privilege management. He introduced an optional filter parameter to the listApiKeysPrivileges API, allowing clients to retrieve only relevant privileges for custom API key creation. This work involved designing a dedicated filter interface and enum in TypeScript, integrating them into the backend API method, and updating comprehensive tests to cover new behaviors and edge cases. By refining privilege retrieval, Talao improved access control and reduced unnecessary data transfer, demonstrating a maintainable API surface and thoughtful application of API development and backend engineering skills.