Charles Hardy contributed to the Codecademy/docs repository by developing comprehensive documentation for the bucket_size() method in the C++ unordered_set API. He focused on delivering clear syntax, parameter descriptions, return values, and practical usage examples, ensuring the entry aligned with established documentation standards. Using his expertise in C++ programming, data structures, and Markdown, Charles enhanced the accuracy and accessibility of the C++ standard library references. His work addressed the need for actionable, example-driven documentation to support developer onboarding and learning. Over the month, he concentrated on depth and clarity, prioritizing documentation quality rather than bug fixes or broader feature development.