Cgg

Use the `cgg` call-graph CLI to map function-level call relationships across a codebase and pull the result (as mermaid) into the working context. Trigger when the user asks "what calls X?", "what does X depend on?", "what would break if I change this?", needs to understand an unfamiliar module before editing it, scopes a refactor or rename, traces a bug across files, generates architecture diagrams, asks "is this still used?" / "what references this?" / "is anything here unused?", or works on a polyglot codebase with FFI boundaries (PyO3, wasm-bindgen, napi, JNI, P/Invoke, C ABI). Also trigger proactively before editing any non-trivial function in a large codebase to con…