Sachin Kumar Singh developed comprehensive requirements documentation for the Utils library within the qorix-group/score repository, focusing on both functional and non-functional aspects. He applied his expertise in requirements engineering and documentation, using RST to clearly define features such as string hashing, Base64 encoding and decoding, PIMPL pointer implementation, and scoped operation management. By emphasizing deterministic behavior and maintainability, Sachin established a solid foundation for consistent API design and future feature integration. His work addressed the need for reliable onboarding and streamlined development, ensuring that the library’s specifications are clear, testable, and aligned with broader business and technical objectives.