Show a token-light tree-sitter skeleton of one or more source files (classes, functions, fields, signatures, decorators, calls, exact line ranges) before reading any raw code. Use proactively instead of cat/Read on any file longer than ~80 lines, and whenever asked "what is in this file/directory". Works for C/C++, Python, JS/TS, Go, Java, Kotlin, Rust, Terraform and Kubernetes YAML.