{
  "tool_id": "art-446-counterparty-internal-limit-check",
  "note": "golden_hash filled by golden-parity.test.mjs --update. Vector 1: two counterparties well within their internal limit lines. Vector 2: a counterparty above its caller-set warning threshold but not yet over the limit. Vector 3: a counterparty whose current exposure exceeds its approved limit -- breach. Vector 4: zero-input edge (finite gate, utilization returns null not Infinity/NaN when the limit is zero, empty counterparty list = no breach/warning).",
  "vectors": [
    {
      "name": "seeded_default_within_limit",
      "description": "Counterparty A: $400M exposure against a $1000M settlement limit (40% utilization, 90% warning threshold) -- within limit. Counterparty B: $300M exposure against a $1500M aggregate limit (20% utilization) -- within limit.",
      "policy_parameters": {
        "counterparties": [
          {
            "counterparty_id": "cp-A",
            "counterparty_name": "Counterparty A",
            "limit_type": "settlement",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 400,
            "warning_threshold_pct": 90
          },
          {
            "counterparty_id": "cp-B",
            "counterparty_name": "Counterparty B",
            "limit_type": "aggregate",
            "approved_limit_musd": 1500,
            "current_exposure_musd": 300,
            "warning_threshold_pct": 90
          }
        ]
      },
      "output_payload": {
        "counterparties": [
          {
            "counterparty_id": "cp-A",
            "counterparty_name": "Counterparty A",
            "limit_type": "settlement",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 400,
            "warning_threshold_pct": 90,
            "utilization_pct": 40,
            "headroom_musd": 600,
            "status": "WITHIN_LIMIT"
          },
          {
            "counterparty_id": "cp-B",
            "counterparty_name": "Counterparty B",
            "limit_type": "aggregate",
            "approved_limit_musd": 1500,
            "current_exposure_musd": 300,
            "warning_threshold_pct": 90,
            "utilization_pct": 20,
            "headroom_musd": 1200,
            "status": "WITHIN_LIMIT"
          }
        ],
        "breach_list": [],
        "warning_list": [],
        "regulatory_basis": "Internal (board- or risk-committee-approved) counterparty credit-limit governance -- not a regulatory threshold. Distinct from the Basel III / Regulation YY 25%/15%-of-Tier-1 large-exposures limit (see art-425).",
        "note": "Deterministic point comparison of caller-supplied current exposure against the caller-supplied approved internal limit line for a single reporting date. Not a real-time exposure monitor."
      },
      "compliance_flags": [
        "ALL_WITHIN_LIMIT"
      ],
      "golden_hash": "360e4ddd88a9ed0a4983b2527a5e60529a3f98f38370bcfd9e9fc35749780ca5"
    },
    {
      "name": "warning_threshold_triggered",
      "description": "Counterparty C: $940M exposure against a $1000M pre-settlement limit -- 94% utilization, above the 90% warning threshold but not yet over the limit.",
      "policy_parameters": {
        "counterparties": [
          {
            "counterparty_id": "cp-C",
            "counterparty_name": "Counterparty C",
            "limit_type": "pre_settlement",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 940,
            "warning_threshold_pct": 90
          }
        ]
      },
      "output_payload": {
        "counterparties": [
          {
            "counterparty_id": "cp-C",
            "counterparty_name": "Counterparty C",
            "limit_type": "pre_settlement",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 940,
            "warning_threshold_pct": 90,
            "utilization_pct": 94,
            "headroom_musd": 60,
            "status": "WARNING"
          }
        ],
        "breach_list": [],
        "warning_list": [
          {
            "counterparty_id": "cp-C",
            "counterparty_name": "Counterparty C",
            "limit_type": "pre_settlement",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 940,
            "warning_threshold_pct": 90,
            "utilization_pct": 94,
            "headroom_musd": 60,
            "status": "WARNING"
          }
        ],
        "regulatory_basis": "Internal (board- or risk-committee-approved) counterparty credit-limit governance -- not a regulatory threshold. Distinct from the Basel III / Regulation YY 25%/15%-of-Tier-1 large-exposures limit (see art-425).",
        "note": "Deterministic point comparison of caller-supplied current exposure against the caller-supplied approved internal limit line for a single reporting date. Not a real-time exposure monitor."
      },
      "compliance_flags": [
        "WARNING_THRESHOLD_TRIGGERED"
      ],
      "golden_hash": "820bae361a4259a5aef4addc472f19cc7c6b9f8cc22553eb81494ddec6c026d3"
    },
    {
      "name": "limit_breach",
      "description": "Counterparty D: $1200M exposure against a $1000M aggregate limit -- exceeds the approved line, breach.",
      "policy_parameters": {
        "counterparties": [
          {
            "counterparty_id": "cp-D",
            "counterparty_name": "Counterparty D",
            "limit_type": "aggregate",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 1200,
            "warning_threshold_pct": 90
          }
        ]
      },
      "output_payload": {
        "counterparties": [
          {
            "counterparty_id": "cp-D",
            "counterparty_name": "Counterparty D",
            "limit_type": "aggregate",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 1200,
            "warning_threshold_pct": 90,
            "utilization_pct": 120,
            "headroom_musd": -200,
            "status": "BREACH"
          }
        ],
        "breach_list": [
          {
            "counterparty_id": "cp-D",
            "counterparty_name": "Counterparty D",
            "limit_type": "aggregate",
            "approved_limit_musd": 1000,
            "current_exposure_musd": 1200,
            "warning_threshold_pct": 90,
            "utilization_pct": 120,
            "headroom_musd": -200,
            "status": "BREACH"
          }
        ],
        "warning_list": [],
        "regulatory_basis": "Internal (board- or risk-committee-approved) counterparty credit-limit governance -- not a regulatory threshold. Distinct from the Basel III / Regulation YY 25%/15%-of-Tier-1 large-exposures limit (see art-425).",
        "note": "Deterministic point comparison of caller-supplied current exposure against the caller-supplied approved internal limit line for a single reporting date. Not a real-time exposure monitor."
      },
      "compliance_flags": [
        "LIMIT_BREACH_DETECTED"
      ],
      "golden_hash": "b65b97c50e9cf799bbda196e57100968effbeaad3c1552cf872c3a2c933ea6a6"
    },
    {
      "name": "zero_input_edge",
      "description": "No counterparties supplied. Finite gate: an empty list yields no breach/warning and no NaN/Infinity paths.",
      "policy_parameters": {
        "counterparties": []
      },
      "output_payload": {
        "counterparties": [],
        "breach_list": [],
        "warning_list": [],
        "regulatory_basis": "Internal (board- or risk-committee-approved) counterparty credit-limit governance -- not a regulatory threshold. Distinct from the Basel III / Regulation YY 25%/15%-of-Tier-1 large-exposures limit (see art-425).",
        "note": "Deterministic point comparison of caller-supplied current exposure against the caller-supplied approved internal limit line for a single reporting date. Not a real-time exposure monitor."
      },
      "compliance_flags": [
        "ALL_WITHIN_LIMIT"
      ],
      "golden_hash": "f5a1d49e09563494d28124fd20d340cc03e23e8d8ff7e1d65c485224a86844e5"
    }
  ]
}