case_id: EX_INSUFFICIENT_DATA_001
type: INSUFFICIENT_DATA
input_summary:
  holdings_screen: "NOT_PROVIDED"
  cash_available: "DATA_MISSING"
  atr20_status: "DATA_MISSING"
expected_output:
  investment_action: "INSUFFICIENT_DATA"
  prohibited_outputs:
    - "매도수량 숫자"
    - "매수수량 숫자"
    - "A등급"
  next_source_to_check:
    - "계좌 잔고 원장"
    - "21거래일 OHLC for ATR20"