Harivamsi Yadavalli developed a dictionary validation feature for the PrairieLearn/PrairieLearn repository, focusing on automated grading of student-submitted dictionaries. Using Python and leveraging skills in API design and automated testing, Harivamsi implemented the check_dict method to compare student dictionaries against reference data, ensuring both keys and values matched as required for accurate assessment. The work included comprehensive end-to-end tests and thorough documentation updates, supporting long-term maintainability and usability. By automating key and value verification, this feature reduced the need for manual review in dictionary-based assessments, demonstrating careful attention to robustness and clarity in both code and supporting materials.