How to Build a Dependency Map of a Legacy Codebase Using AI Tools

Before you refactor anything in a legacy codebase, you need to know what depends on what. Change a function signature without knowing its callers, and you break things in unexpected places. Rename a class without understanding its inheritance tree, and you introduce failures that are hard to trace. The dependency map is the safety information that makes everything else in a legacy modernization project lower-risk. Building a complete dependency map manually is expensive. AI tools accelerate the