{
  "schemaVersion": 1,
  "cases": [
    {
      "id": "complete-tool-is-billable",
      "method": "tools/call",
      "name": "search",
      "flatUnits": 3,
      "response": {"jsonrpc":"2.0","id":1,"result":{"resultType":"complete","content":[]}},
      "expected": {"kind":"billable","units":3}
    },
    {
      "id": "interim-input-is-free",
      "method": "tools/call",
      "name": "search",
      "flatUnits": 3,
      "response": {"jsonrpc":"2.0","id":1,"result":{"resultType":"input_required","requestState":"opaque"}},
      "expected": {"kind":"free","reason":"interim_input_required"}
    },
    {
      "id": "protocol-error-is-free",
      "method": "tools/call",
      "name": "search",
      "flatUnits": 3,
      "response": {"jsonrpc":"2.0","id":1,"error":{"code":-32603,"message":"failed"}},
      "expected": {"kind":"free","reason":"protocol_error"}
    },
    {
      "id": "task-creation-is-free",
      "method": "tools/call",
      "name": "report",
      "flatUnits": 8,
      "response": {"jsonrpc":"2.0","id":1,"result":{"resultType":"task","taskId":"task-1","status":"working"}},
      "expected": {"kind":"free","reason":"task_created"}
    },
    {
      "id": "working-task-poll-is-free",
      "method": "tasks/get",
      "flatUnits": 8,
      "response": {"jsonrpc":"2.0","id":2,"result":{"resultType":"complete","taskId":"task-1","status":"working"}},
      "taskOrigin": {"method":"tools/call","name":"report"},
      "expected": {"kind":"free","reason":"task_in_progress"}
    },
    {
      "id": "completed-task-uses-origin-price",
      "method": "tasks/get",
      "flatUnits": 1,
      "namedUnits": {"report": 25},
      "response": {"jsonrpc":"2.0","id":3,"result":{"resultType":"complete","taskId":"task-1","status":"completed","result":{}}},
      "taskOrigin": {"method":"tools/call","name":"report"},
      "expected": {"kind":"billable","units":25,"idempotencyKey":"task-1"}
    },
    {
      "id": "completed-task-without-origin-is-free",
      "method": "tasks/get",
      "flatUnits": 8,
      "response": {"jsonrpc":"2.0","id":3,"result":{"resultType":"complete","taskId":"task-1","status":"completed","result":{}}},
      "expected": {"kind":"free","reason":"missing_task_attribution"}
    },
    {
      "id": "completed-task-without-id-is-free",
      "method": "tasks/get",
      "flatUnits": 8,
      "response": {"jsonrpc":"2.0","id":3,"result":{"resultType":"complete","status":"completed","result":{}}},
      "taskOrigin": {"method":"tools/call","name":"report"},
      "expected": {"kind":"free","reason":"missing_task_id"}
    },
    {
      "id": "failed-task-is-free",
      "method": "tasks/get",
      "flatUnits": 8,
      "response": {"jsonrpc":"2.0","id":3,"result":{"resultType":"complete","taskId":"task-1","status":"failed"}},
      "taskOrigin": {"method":"tools/call","name":"report"},
      "expected": {"kind":"free","reason":"task_not_delivered"}
    },
    {
      "id": "discovery-is-free",
      "method": "tools/list",
      "flatUnits": 9,
      "response": {"jsonrpc":"2.0","id":1,"result":{"resultType":"complete","tools":[]}},
      "expected": {"kind":"free","reason":"discovery"}
    },
    {
      "id": "subscription-is-free",
      "method": "subscriptions/listen",
      "flatUnits": 9,
      "response": {"jsonrpc":"2.0","id":1,"result":{"resultType":"complete"}},
      "expected": {"kind":"free","reason":"subscription"}
    },
    {
      "id": "unknown-result-fails-free",
      "method": "tools/call",
      "name": "search",
      "flatUnits": 3,
      "response": {"jsonrpc":"2.0","id":1,"result":{"resultType":"vendor_extension"}},
      "expected": {"kind":"free","reason":"unrecognized_result"}
    }
  ]
}