Documents chunked by clause type (header, definitions, payment terms, maturity).

Documents chunked by clause type (header, definitions, payment terms, maturity). Each chunk embedded with Bedrock Titan or Cohere. Stored in FAISS/ChromaDB with metadata (doc ID, clause type, date). At query time: embed the target field name, retrieve top-k relevant clauses, inject into extraction prompt. Clause-type metadata filtering used to narrow search scope before ANN.