Your question is Hybrid Search for Recall and Precision. 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).
Describe how you would implement a hybrid search system combining keyword and vector search to maximize retrieval recall and precision at Decagon.
Explain the retrieval, ranking, indexing, serving, evaluation, and monitoring choices you would make. Treat lexical and semantic retrieval as complementary signals, and discuss how you would handle freshness, failure modes, and training-serving consistency.
