Returns the folder/file tree of a local repository, plus totals (file count, lines of code). Use this first to get oriented before drilling into individual files.

Returns a structural summary of a single file: line count, function/class count, its imports, and a short excerpt - without needing to read the whole file.

Builds a dependency graph of the repository by resolving relative imports between files. Returns edges (from -> to) for internal files and a separate list of external package names.

Ranks files by a simple size/complexity heuristic (function count, class count, lines of code) so you know which parts of a codebase are worth looking at first.