Current retrieval is primarily lexical + semantic component scoring with heuristic reranking, and relationship handling is only a one-hop add-on.
Acceptance criteria:
- Retrieval can traverse relationships, not just rank isolated components.
- Query results include path-level provenance, not only a flat source list.
- Add eval cases for 2-hop and 3-hop startup questions.
Current retrieval is primarily lexical + semantic component scoring with heuristic reranking, and relationship handling is only a one-hop add-on.
Acceptance criteria: