During March 2026, Kai Tung Chan developed a Pseudo-Random Integer Generator API for the gchq/CyberChef repository, expanding the platform’s data generation capabilities. He implemented a new operation in JavaScript that allows users to generate random integers within a specified range, supporting more robust testing and automation workflows. The feature was integrated with existing data generation operations to ensure compatibility and performance, aligning with issue-tracking processes. While no major bugs were addressed during this period, the work demonstrated full stack development skills and a clear understanding of open source contribution practices, delivering a focused enhancement to CyberChef’s feature set.