{
  "task_id": "objective_hard_18",
  "version": "2.0.0",
  "created_at": "2026-03-13",
  "metadata": {
    "domain": "credit_card_optimization",
    "difficulty": "hard",
    "task_number": 18,
    "complexity_hint": {
      "max_tokens": 8000,
      "expected_output": "up to 3-card portfolio optimization with full EV breakdown over 24 months"
    },
    "requires_human_review": false
  },
  "prompt": {
    "system": "",
    "user": "You are a financial advisor. Build an optimal credit card portfolio for this user and calculate the total expected value over 24 months.\n\nUser profile:\n- Monthly spending: $800 dining, $400 groceries (+ $500 Costco), $150 gas, $12000 travel (airlines + hotels via Expedia/Priceline), $300 phone bill, $2000 other shopping\n- Currently has: Chase Sapphire Preferred, Citi Costco card (both 10+ years old)\n- FICO: 840\n- Income: $300K\n- Has Amazon Prime, Costco membership\n- OK with category-specific cards, no rotating categories\n- No business cards\n- Purpose: maximize travel rewards/points\n- Time horizon: 24 months\n\nRecommend up to 3 cards. Show per-card EV breakdown.",
    "knowledge_base_ref": "knowledge_base.md",
    "kb_filter": [
      "American Express Platinum",
      "American Express Gold",
      "Chase Sapphire Reserve",
      "Capital One Venture X",
      "Citi Strata Elite",
      "Citi Strata Premier",
      "Chase Freedom Unlimited",
      "Amex Green",
      "Capital One Venture"
    ],
    "system_prompt_ref": "system_prompt_template.md"
  },
  "scoring": {
    "dimensions": {
      "card_selection": {
        "weight": 0.25,
        "type": "automated",
        "description": "F1 of recommended cards vs. computed optimal set",
        "checks": {
          "expected_cards": [
            "American Express Platinum",
            "Citi Strata Premier",
            "Capital One Venture"
          ]
        },
        "hard_constraint": false
      },
      "ev_accuracy": {
        "weight": 0.3,
        "type": "automated",
        "description": "EV accuracy vs. computed ground truth",
        "reference": {
          "user_profile": {
            "monthly_spend": {
              "dining": 800.0,
              "groceries": 900.0,
              "travel": 6000.0,
              "flights": 4000.0,
              "hotels": 2000.0,
              "gas": 150.0,
              "telecom": 300.0,
              "everything_else": 2000.0
            },
            "time_horizon_months": 24,
            "lounge_visits_per_year": 12,
            "uses_uber": true,
            "uses_streaming": true,
            "has_amazon_prime": true
          },
          "expected_card_ids": [
            "american_express_platinum",
            "citi_strata_premier",
            "capital_one_venture"
          ],
          "ev_tolerance_pct": 0.07
        }
      },
      "factual_fidelity": {
        "weight": 0.3,
        "type": "automated",
        "description": "Accuracy of factual claims about cards",
        "reference": {
          "extracted_claims": null,
          "reference_ev_usd": null
        }
      },
      "constraint_compliance": {
        "weight": 0.15,
        "type": "automated",
        "description": "Respects user constraints",
        "checks": {
          "expected_cards": [
            "American Express Platinum",
            "Citi Strata Premier",
            "Capital One Venture"
          ],
          "expected_housing_option": null
        },
        "hard_constraint": false
      }
    },
    "passing_threshold": 0.5,
    "hard_constraint_failure_zeroes_dimension": true
  },
  "reference_solution": {
    "_status": "COMPUTED",
    "recommended_cards": [
      "American Express Platinum",
      "Citi Strata Premier",
      "Capital One Venture"
    ],
    "total_ev_usd": null,
    "ev_breakdown": null,
    "housing_option": null,
    "key_constraints_flags": [
      "max_3_cards",
      "no_business_cards",
      "no_rotating_categories"
    ],
    "expert_notes": ""
  }
}