{
  "topic_id": "TP-197",
  "synthetic": true,
  "real_customer_data": false,
  "purpose": "hledger transaction amount versus balance",
  "input": {
    "opening": 100,
    "rows": [
      {
        "amount": 30,
        "balance": 130
      },
      {
        "amount": -8,
        "balance": 122
      }
    ]
  },
  "expected_review": {
    "movement_sum": 22,
    "closing": 122,
    "wrong_balance_sum": 252
  },
  "scope": "Python only. hledger/CSV rules/balance assertions not executed; assertion requires correct opening account history.",
  "verification": "Python reference model only. Vendor UI, accounting operations, real bank compatibility and authenticated imports NOT_VERIFIED."
}