Architecture documents and diagrams are always out of date. Unfortunately, lack of accurate, up-to-date information about software architecture is really harmful to developer productivity and happiness. Historically, developers have overcome other frustrations by making code the “source of truth”, and then using the code as a foundation for automated tools and processes. In this talk, I will describe how to automatically generate docs and diagrams of code architecture, and discuss how to use to use this information to improve code understanding and code quality.