{
  "test_cases": [
    {
      "test_id": "TC-R1-HTTP-RF-001-T2",
      "trajectory_id": "HTTP-RF-001",
      "focus_turn": 2,
      "description": "Refund flow must include verify_refund_eligibility before process_refund (R1)",
      "assertion": {
        "type": "step_present",
        "params": {
          "tool": "verify_refund_eligibility"
        }
      }
    },
    {
      "test_id": "TC-R2-LATENCY-HTTP-INV-001-T2",
      "trajectory_id": "HTTP-INV-001",
      "focus_turn": 2,
      "description": "check_stock must complete within 250 ms (R2)",
      "assertion": {
        "type": "latency_under",
        "params": {
          "tool": "check_stock",
          "threshold_ms": 250
        }
      }
    },
    {
      "test_id": "TC-R2-STATUS-HTTP-INV-001-T2",
      "trajectory_id": "HTTP-INV-001",
      "focus_turn": 2,
      "description": "check_stock origin timeout must use degraded cache route, resulting in successful flow (R2)",
      "assertion": {
        "type": "final_status_is",
        "params": {
          "value": "success"
        }
      }
    }
  ]
}