{
  "schema_version": 1,
  "task": "cold_create_to_first_command",
  "method": {
    "first_command": "echo ok",
    "verify_command": "uname -a",
    "replicates_requested": 5,
    "readiness": {
      "attempts": 40,
      "gap_ms": 250,
      "probe_timeout_ms": 2000
    },
    "definitions": {
      "spawn_ms": "t0 (monotonic, before create) until the provider's create call returns a handle",
      "cold_start_ms": "headline TTFR: t0 until the first `echo ok` exits 0",
      "time_to_first_exec_ms": "create returned until the first `echo ok` exits 0",
      "teardown_ms": "wall time of the provider's destroy call"
    }
  },
  "host": {
    "platform": "darwin 27.0.0",
    "runtime": "bun 1.2.19",
    "timezone": "America/New_York",
    "note": "Numbers include network round trips from this host."
  },
  "started_at_utc": "2026-11-12T21:42:55.542Z",
  "finished_at_utc": "2026-11-12T21:43:07.277Z",
  "providers": [
    {
      "id": "fly-sprites",
      "env_vars": [
        "SPRITES_TOKEN"
      ],
      "requires_payment_method": false,
      "note": "Fly.io Sprites via @fly/sprites. The token was minted from a Fly API token with SpritesClient.createToken().",
      "status": "measured",
      "reason": null,
      "replicates": [
        {
          "index": 1,
          "ok": true,
          "image": "sprites default image",
          "spawn_ms": 433,
          "cold_start_ms": 623.2,
          "time_to_first_exec_ms": 190.2,
          "verify_ms": 161.8,
          "teardown_ms": 628.6,
          "first_command_stdout": "ok",
          "readiness_attempts": 1,
          "error": null,
          "teardown_error": null
        },
        {
          "index": 2,
          "ok": true,
          "image": "sprites default image",
          "spawn_ms": 558.3,
          "cold_start_ms": 746.1,
          "time_to_first_exec_ms": 187.8,
          "verify_ms": 171,
          "teardown_ms": 1853,
          "first_command_stdout": "ok",
          "readiness_attempts": 1,
          "error": null,
          "teardown_error": null
        },
        {
          "index": 3,
          "ok": true,
          "image": "sprites default image",
          "spawn_ms": 307.7,
          "cold_start_ms": 504.5,
          "time_to_first_exec_ms": 196.8,
          "verify_ms": 192.4,
          "teardown_ms": 1043.7,
          "first_command_stdout": "ok",
          "readiness_attempts": 1,
          "error": null,
          "teardown_error": null
        },
        {
          "index": 4,
          "ok": true,
          "image": "sprites default image",
          "spawn_ms": 504,
          "cold_start_ms": 692.8,
          "time_to_first_exec_ms": 188.8,
          "verify_ms": 178.9,
          "teardown_ms": 728,
          "first_command_stdout": "ok",
          "readiness_attempts": 1,
          "error": null,
          "teardown_error": null
        },
        {
          "index": 5,
          "ok": true,
          "image": "sprites default image",
          "spawn_ms": 431.6,
          "cold_start_ms": 611,
          "time_to_first_exec_ms": 179.4,
          "verify_ms": 178.5,
          "teardown_ms": 3419.1,
          "first_command_stdout": "ok",
          "readiness_attempts": 1,
          "error": null,
          "teardown_error": null
        }
      ],
      "summary": {
        "n_ok": 5,
        "n_fail": 0,
        "cold_start_ms": {
          "n": 5,
          "min": 504.5,
          "p50": 623.2,
          "max": 746.1
        },
        "spawn_ms": {
          "n": 5,
          "min": 307.7,
          "p50": 433,
          "max": 558.3
        },
        "time_to_first_exec_ms": {
          "n": 5,
          "min": 179.4,
          "p50": 188.8,
          "max": 196.8
        },
        "teardown_ms": {
          "n": 5,
          "min": 628.6,
          "p50": 1043.7,
          "max": 3419.1
        }
      }
    }
  ]
}