Worked on enhancing the hiero-ledger/hiero-sdk-cpp repository by focusing on API safety and documentation quality within the C++ codebase. Applied targeted improvements such as adding the [[nodiscard]] attribute to the TokenRelationship.toString method, ensuring that return values are properly handled by users of the API. Addressed documentation accuracy by correcting a typo in the Hbar addition operator, leading to clearer and more reliable public API references. These efforts contributed to cleaner, more maintainable code and improved onboarding for other developers. The work demonstrated attention to detail in C++ development, documentation practices, and general software engineering principles over the project period.