Worked on the ROCm/rccl repository to enhance code clarity and maintainability by focusing on documentation improvements within a C++ codebase. Updated the comment for the isFirstFromRoot function to explicitly state that it checks whether a given rank is the first from the root, ensuring the intended behavior is clear to future contributors. This documentation-focused change did not alter any logic but aimed to reduce ambiguity and support easier onboarding for new developers. Emphasized code documentation as a core skill, contributing to a more maintainable project and helping prevent misinterpretation as the code evolves over time. No bugs were addressed.