{
  "schema": "martybytes-synthetic-gateway/v1",
  "synthetic": true,
  "requests": [
    {
      "requestId": "fallback-success",
      "budgetUnits": 7,
      "attempts": [
        {"provider":"provider-a","model":"model-a","outcome":"timeout","syntheticDurationTicks":3,"estimate":{"units":2,"source":"fixture-rate-card","basis":"invented two-unit estimate"}},
        {"provider":"provider-b","model":"model-b","outcome":"rate-limit","syntheticDurationTicks":1,"estimate":{"units":1,"source":"fixture-rate-card","basis":"invented one-unit estimate"}},
        {"provider":"provider-c","model":"model-c","outcome":"success","syntheticDurationTicks":2,"estimate":{"units":3,"source":"fixture-rate-card","basis":"invented three-unit estimate"}}
      ]
    },
    {
      "requestId": "budget-stop",
      "budgetUnits": 2,
      "attempts": [
        {"provider":"provider-a","model":"model-a","outcome":"timeout","syntheticDurationTicks":2,"estimate":{"units":2,"source":"fixture-rate-card","basis":"invented two-unit estimate"}},
        {"provider":"provider-b","model":"model-b","outcome":"success","syntheticDurationTicks":1,"estimate":{"units":1,"source":"fixture-rate-card","basis":"invented one-unit estimate"}}
      ]
    }
  ]
}