CodeChat is a chatbot that helps users understand code quickly. Specifically, it focuses on answering questions about the GitHub source for Twitter"s Recommendation Algorithm. Users can ask any question and get answers in real-time. This tool is unique because it provides a conversational interface to explore and understand complex codebases. It can be used by developers to gain insights into Twitter"s recommendation algorithm and learn how the system scores tweets, including whether tweets with the "blue verified" tag can be boosted. Additionally, CodeChat can provide information about the concept of a "trusted circle" within the algorithm. Overall, this AI tool is a valuable resource for developers and anyone interested in understanding and analyzing Twitter"s recommendation algorithm.