unhield/limoxel ? reverse-engineered prompt

Build me a Go tool that can take a code repository and help me really understand it.

I want a command line app that scans a repo, figures out its structure, finds packages, modules, files, symbols, and dependencies, then shows me how everything connects. It should be able to answer questions like where a symbol is defined, where it is used, what depends on what, and what might be affected by a change. Include support for search, dependency graphs, cross references, and simple reports I can read or export.

Make it feel practical for developers and architects, with clear output, useful diagnostics, and a way to inspect repository health and architecture. If it makes sense, add a small SDK or public API layer too so other tools can reuse the same analysis. Keep it deterministic and focused on understanding repositories, not just listing files. If you need current Go library docs or best practices, look them up online as you build it.