text_splitter:
  chunk_size: 512
  chunk_overlap: 50
  
retrieval:
  top_k: 10
  search_type: "mmr"
  fetch_k: 20
  lambda_mult: 0.5
  score_threshold: 0.7
  rerank: true
  
cache:
  enabled: true
  ttl: 3600
  
memory:
  type: "buffer"
  max_messages: 10
  return_messages: true