{
  "schema_version": "1.0",
  "surface_type": "guide_answer",
  "guide_id": "chunk-size-and-chunk-count",
  "question": "How do chunk size and chunk count affect agent retrieval cost?",
  "canonical_url": "https://www.unitcostai.com/guides/chunk-size-and-chunk-count",
  "related_tool_url": "https://www.unitcostai.com/tools/ai-workflow-cost",
  "formula": "retrieval_tokens_per_request = retrieved_chunks * tokens_per_chunk",
  "assumptions": [
    "Higher retrieval tokens increase input token spend per request",
    "Chunk changes are validated against recall quality",
    "Compare p50 and p90 retrieval patterns"
  ],
  "example": "6 chunks at 220 tokens add 1320 retrieval tokens per request."
}