Your question is Evaluate Retrieval Quality with Ranking Metrics. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You are reviewing the retrieval layer for an LLM feature that answers user questions from an internal document index. The team wants a clear way to tell whether retrieval is good enough before tuning prompts or generation.
Walk me through how you would evaluate retrieval quality with metrics like recall@k and MRR.