Generate hierarchical code maps from any codebase for AI agent consumption. Use when: (1) Analyzing or understanding a codebase structure, (2) Creating documentation of code architecture, (3) Mapping dependencies between files, (4) Extracting class hierarchies and call graphs, (5) Onboarding to a new project, (6) Preparing context for AI-assisted code modifications. Supports Python, JavaScript, TypeScript, Go, Rust, Java, C/C++, Ruby, PHP, and 20+ languages via tree-sitter.