Raino Pikkarainen developed a new feature for the usebruno/bruno repository, enhancing the BrunoResponse object by adding a dataBuffer property and a getDataBuffer method. This update, implemented using JavaScript and TypeScript within a Node.js environment, enables test scripts to access response buffers directly, supporting more comprehensive and automated testing scenarios. By exposing the dataBuffer, Raino improved test coverage and allowed quality assurance processes to validate buffering behavior without modifying production code. The work demonstrated a clear understanding of API extension patterns and testing tooling integration, resulting in a targeted, maintainable solution that streamlines QA and reduces defect leakage.