Your codebase - is your Knowledge Graph.
Strazh is a .NET Core console app to build a Codebase Knowledge Graph from a C# codebase powered by Roslyn analyzer.
Codebase Knowledge Graph is a graph-structured dataset with free-form relationships between entities of codebase, semantic models of programming language, project structure and other interlinked knowledges.
More details in the article Codebase Knowledge Graph