Evidence and limits
Finding: Recursive summaries can support retrieval across different abstraction levels and improve several long-document benchmarks.
Impact: Watch hierarchical retrieval for global and local questions. Reject generated summaries as source truth.
Boundary: Summaries can omit or distort details and the tests do not cover correction survival. Next: how can every abstraction retain auditable links to leaf evidence and invalidation events?
Flags: generated summaries may distort leaf evidence
Record State: Catalog review recorded; not a performance endorsement
What was reviewed: Structure and relevance screened; not a full evaluation