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      "buyer": "claude-haiku-5-5",
      "seller": "claude-haiku-5-5"
    },
    "agent_of_role": {
      "buyer": "B",
      "seller": "A"
    },
    "first_speaker": "buyer",
    "calls_attempted": 9,
    "repairs_used": 0,
    "invalid_attempts": [],
    "bounds": {
      "buyer_gain": [
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        80
      ],
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        -20,
        80
      ],
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        0,
        90
      ]
    },
    "status": "AGREEMENT",
    "known": true,
    "reason": "agreement",
    "agreement": true,
    "no_deal": false,
    "deal": {
      "terms": {
        "unit_price_usd": "75.50",
        "cancellation_fee_pct": "14.00",
        "name_change_notice_hours": "16.00"
      },
      "offer_id": "O8",
      "proposer": "seller",
      "acceptor": "buyer"
    },
    "utilities": {
      "buyer": {
        "exact": "8771/120",
        "value": 73.09166666666667
      },
      "seller": {
        "exact": "1217/60",
        "value": 20.283333333333335
      }
    },
    "gains": {
      "buyer": {
        "exact": "6371/120",
        "value": 53.09166666666667
      },
      "seller": {
        "exact": "17/60",
        "value": 0.2833333333333333
      }
    },
    "joint": {
      "exact": "747/8",
      "value": 93.375
    },
    "joint_gain": {
      "exact": "427/8",
      "value": 53.375
    },
    "efficiency": {
      "exact": "427/720",
      "value": 0.5930555555555556
    },
    "efficiency_all_assigned": {
      "exact": "427/720",
      "value": 0.5930555555555556
    },
    "buyer_share_of_joint_gain": {
      "exact": "6371/6405",
      "value": 0.9946916471506635
    },
    "below_fallback": [],
    "technical_pass": true
  },
  {
    "unit_id": "negotiation-c3ext2-20261028-oo-a4-02",
    "block": 1,
    "position": 2,
    "phase": "extension",
    "condition": "C3",
    "pairing": "OO",
    "assignment": 4,
    "cell": "C3|OO|a4",
    "models_by_role": {
      "buyer": "claude-opus-5-5",
      "seller": "claude-opus-5-5"
    },
    "agent_of_role": {
      "buyer": "B",
      "seller": "A"
    },
    "first_speaker": "buyer",
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    "repairs_used": 0,
    "invalid_attempts": [],
    "bounds": {
      "buyer_gain": [
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        80
      ],
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        80
      ],
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        0,
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      ]
    },
    "status": "AGREEMENT",
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    "reason": "agreement",
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    "no_deal": false,
    "deal": {
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        "unit_price_usd": "64.00",
        "cancellation_fee_pct": "38.00",
        "name_change_notice_hours": "96.00"
      },
      "offer_id": "O7",
      "proposer": "buyer",
      "acceptor": "seller"
    },
    "utilities": {
      "buyer": {
        "exact": "318/5",
        "value": 63.6
      },
      "seller": {
        "exact": "317/5",
        "value": 63.4
      }
    },
    "gains": {
      "buyer": {
        "exact": "218/5",
        "value": 43.6
      },
      "seller": {
        "exact": "217/5",
        "value": 43.4
      }
    },
    "joint": {
      "exact": "127",
      "value": 127
    },
    "joint_gain": {
      "exact": "87",
      "value": 87
    },
    "efficiency": {
      "exact": "29/30",
      "value": 0.9666666666666667
    },
    "efficiency_all_assigned": {
      "exact": "29/30",
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    },
    "buyer_share_of_joint_gain": {
      "exact": "218/435",
      "value": 0.5011494252873563
    },
    "below_fallback": [],
    "technical_pass": true
  }
]