{
    "id": "coa-fs-2026-07-24-001",
    "base": "COA-D-20260724-001",
    "date": "2026-07-24",
    "type": "COA Fuel Signal",
    "version": "1.0",
    "city": {
        "name": "札幌",
        "role": "Consumption"
    },
    "delta": {
        "price": "up",
        "supply": "down",
        "pressure": "up",
        "lag": "down",
        "silence": "down"
    },
    "trigger": {
        "type": "C",
        "label": "供給ショック再加速"
    },
    "decision": {
        "replenish": "immediate",
        "stock": "+2",
        "risk": "high"
    },
    "silent": "down",
    "branch_gradient_log": {
        "dominant_conditions": [
            "ホルムズ・紅海の二重チョークポイント制約",
            "原油高",
            "円安",
            "国内価格転写の継続"
        ],
        "reversal_conditions": [
            "米国・イラン協議の実質進展",
            "ホルムズ通航量の回復",
            "海上保険・輸送制約の緩和"
        ],
        "current_gradient": "strong"
    },
    "tags": [
        "COA",
        "FuelSignal"
    ]
}