Show HN: Brf.it – Extracting code interfaces for LLM context

I've been experimenting with ways to make AI coding assistants efficient when working with large codebases. The problem When sharing repository context with LLMs, we often give them everything: full files, implementation details, comments, etc. But for many tasks (like understanding architecture or navigating a repo), the model doesn't actually need most of that. This creates two problems.