{
  "version": "model-selection-v2",
  "decision": {
    "task": "Anonymous tool-using ticket-assistant candidate selection (teaching data)",
    "as_of": "2026-07-18",
    "required_capabilities": [
      "structured-output",
      "tool-calling"
    ],
    "allowed_deployments": [
      "approved-region",
      "self-hosted"
    ],
    "require_no_training": true,
    "max_retention_days": 7,
    "max_p95_latency_ms": 1500,
    "max_avg_cost_usd": 0.03,
    "min_trials_per_case": 3,
    "min_task_success_rate": 0.75,
    "min_structured_output_rate": 0.95,
    "min_tool_success_rate": 0.9,
    "weights": {
      "task_success": 0.45,
      "structured_output": 0.15,
      "tool_success": 0.15,
      "latency_headroom": 0.15,
      "cost_headroom": 0.1
    },
    "sensitivity_weights": [
      {
        "name": "quality-priority",
        "weights": {
          "task_success": 0.6,
          "structured_output": 0.15,
          "tool_success": 0.15,
          "latency_headroom": 0.05,
          "cost_headroom": 0.05
        }
      },
      {
        "name": "efficiency-priority",
        "weights": {
          "task_success": 0.25,
          "structured_output": 0.1,
          "tool_success": 0.1,
          "latency_headroom": 0.25,
          "cost_headroom": 0.3
        }
      }
    ]
  },
  "candidates": [
    {
      "id": "candidate-a",
      "evidence": {
        "status": "verified",
        "uri": "urn:fixture:model-card:candidate-a",
        "checked_on": "2026-07-17",
        "owner": "model-governance",
        "expires_on": "2026-08-17",
        "missing_items": []
      },
      "deployment": "approved-region",
      "capabilities": [
        "structured-output",
        "tool-calling",
        "vision"
      ],
      "data_policy": {
        "training_use": false,
        "retention_days": 0
      },
      "trials": [
        {
          "trial_id": "a-c1-t1",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 1.0,
          "latency_ms": 1150,
          "cost_usd": 0.02
        },
        {
          "trial_id": "a-c1-t2",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.95,
          "latency_ms": 1180,
          "cost_usd": 0.021
        },
        {
          "trial_id": "a-c1-t3",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 1.0,
          "latency_ms": 1200,
          "cost_usd": 0.021
        },
        {
          "trial_id": "a-c2-t1",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 1250,
          "cost_usd": 0.022
        },
        {
          "trial_id": "a-c2-t2",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.95,
          "latency_ms": 1280,
          "cost_usd": 0.022
        },
        {
          "trial_id": "a-c2-t3",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 1300,
          "cost_usd": 0.023
        }
      ]
    },
    {
      "id": "candidate-b",
      "evidence": {
        "status": "verified",
        "uri": "urn:fixture:model-card:candidate-b",
        "checked_on": "2026-07-17",
        "owner": "model-governance",
        "expires_on": "2026-08-17",
        "missing_items": []
      },
      "deployment": "self-hosted",
      "capabilities": [
        "structured-output",
        "tool-calling"
      ],
      "data_policy": {
        "training_use": false,
        "retention_days": 0
      },
      "trials": [
        {
          "trial_id": "b-c1-t1",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 600,
          "cost_usd": 0.008
        },
        {
          "trial_id": "b-c1-t2",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.95,
          "latency_ms": 620,
          "cost_usd": 0.008
        },
        {
          "trial_id": "b-c1-t3",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 640,
          "cost_usd": 0.009
        },
        {
          "trial_id": "b-c2-t1",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 680,
          "cost_usd": 0.009
        },
        {
          "trial_id": "b-c2-t2",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 720,
          "cost_usd": 0.01
        },
        {
          "trial_id": "b-c2-t3",
          "case_id": "case-02",
          "task_success": false,
          "structured_output_valid": true,
          "tool_success": 0.95,
          "latency_ms": 750,
          "cost_usd": 0.01
        }
      ]
    },
    {
      "id": "candidate-c",
      "evidence": {
        "status": "verified",
        "uri": "urn:fixture:model-card:candidate-c",
        "checked_on": "2026-07-17",
        "owner": "model-governance",
        "expires_on": "2026-08-17",
        "missing_items": []
      },
      "deployment": "approved-region",
      "capabilities": [
        "structured-output",
        "tool-calling"
      ],
      "data_policy": {
        "training_use": false,
        "retention_days": 3
      },
      "trials": [
        {
          "trial_id": "c-c1-t1",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 800,
          "cost_usd": 0.011
        },
        {
          "trial_id": "c-c1-t2",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 820,
          "cost_usd": 0.011
        },
        {
          "trial_id": "c-c1-t3",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 850,
          "cost_usd": 0.012
        },
        {
          "trial_id": "c-c2-t1",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 900,
          "cost_usd": 0.012
        },
        {
          "trial_id": "c-c2-t2",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 930,
          "cost_usd": 0.013
        },
        {
          "trial_id": "c-c2-t3",
          "case_id": "case-02",
          "task_success": false,
          "structured_output_valid": true,
          "tool_success": 0.9,
          "latency_ms": 950,
          "cost_usd": 0.013
        }
      ]
    },
    {
      "id": "candidate-d",
      "evidence": {
        "status": "verified",
        "uri": "urn:fixture:model-card:candidate-d",
        "checked_on": "2026-07-17",
        "owner": "model-governance",
        "expires_on": "2026-08-17",
        "missing_items": []
      },
      "deployment": "approved-region",
      "capabilities": [
        "structured-output",
        "tool-calling"
      ],
      "data_policy": {
        "training_use": false,
        "retention_days": 0
      },
      "trials": [
        {
          "trial_id": "d-c1-t1",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.8,
          "latency_ms": 450,
          "cost_usd": 0.004
        },
        {
          "trial_id": "d-c1-t2",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.8,
          "latency_ms": 465,
          "cost_usd": 0.004
        },
        {
          "trial_id": "d-c1-t3",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.8,
          "latency_ms": 475,
          "cost_usd": 0.005
        },
        {
          "trial_id": "d-c2-t1",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.8,
          "latency_ms": 500,
          "cost_usd": 0.005
        },
        {
          "trial_id": "d-c2-t2",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 0.8,
          "latency_ms": 510,
          "cost_usd": 0.005
        },
        {
          "trial_id": "d-c2-t3",
          "case_id": "case-02",
          "task_success": false,
          "structured_output_valid": false,
          "tool_success": 0.8,
          "latency_ms": 525,
          "cost_usd": 0.006
        }
      ]
    },
    {
      "id": "candidate-e",
      "evidence": {
        "status": "blocked",
        "uri": null,
        "checked_on": "2026-07-17",
        "owner": "risk-review",
        "expires_on": null,
        "missing_items": [
          "data-retention-contract",
          "regional-processing-proof"
        ]
      },
      "deployment": "approved-region",
      "capabilities": [
        "structured-output",
        "tool-calling"
      ],
      "data_policy": {
        "training_use": false,
        "retention_days": 0
      },
      "trials": [
        {
          "trial_id": "e-c1-t1",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 1.0,
          "latency_ms": 400,
          "cost_usd": 0.003
        },
        {
          "trial_id": "e-c1-t2",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 1.0,
          "latency_ms": 410,
          "cost_usd": 0.003
        },
        {
          "trial_id": "e-c1-t3",
          "case_id": "case-01",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 1.0,
          "latency_ms": 420,
          "cost_usd": 0.003
        },
        {
          "trial_id": "e-c2-t1",
          "case_id": "case-02",
          "task_success": true,
          "structured_output_valid": true,
          "tool_success": 1.0,
          "latency_ms": 430,
          "cost_usd": 0.004
        },
        {
          "trial_id": "e-c2-t2",
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        },
        {
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        }
      ]
    }
  ]
}