{
  "execution_mode": "actual-concurrent-loopback-http-single-process",
  "model_called": false,
  "controlled_delay_seconds": 0.35,
  "cases": {
    "active_observed": {
      "active": 1,
      "waiting": 0,
      "events": [
        {
          "order": 1,
          "status": "admitted",
          "active": 1,
          "waiting": 0
        }
      ],
      "max_active": 1,
      "max_waiting": 1,
      "wait_seconds": 0.15
    },
    "queued_observed": {
      "active": 1,
      "waiting": 1,
      "events": [
        {
          "order": 1,
          "status": "admitted",
          "active": 1,
          "waiting": 0
        },
        {
          "order": 2,
          "status": "queued",
          "active": 1,
          "waiting": 1
        }
      ],
      "max_active": 1,
      "max_waiting": 1,
      "wait_seconds": 0.15
    },
    "queue_overflow": {
      "http_status": 429,
      "status": "queue_full"
    },
    "wait_deadline": {
      "http_status": 503,
      "status": "wait_timeout"
    },
    "first_completed": {
      "http_status": 200,
      "status": "completed"
    },
    "idle": {
      "active": 0,
      "waiting": 0,
      "events": [
        {
          "order": 1,
          "status": "admitted",
          "active": 1,
          "waiting": 0
        },
        {
          "order": 2,
          "status": "queued",
          "active": 1,
          "waiting": 1
        },
        {
          "order": 3,
          "status": "queue_full",
          "active": 1,
          "waiting": 1
        },
        {
          "order": 4,
          "status": "wait_timeout",
          "active": 1,
          "waiting": 0
        },
        {
          "order": 5,
          "status": "released",
          "active": 0,
          "waiting": 0
        }
      ],
      "max_active": 1,
      "max_waiting": 1,
      "wait_seconds": 0.15
    },
    "client_timeout": {
      "client_exception": "ReadTimeout",
      "server_after_timeout": {
        "active": 1,
        "waiting": 0,
        "events": [
          {
            "order": 1,
            "status": "admitted",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 2,
            "status": "queued",
            "active": 1,
            "waiting": 1
          },
          {
            "order": 3,
            "status": "queue_full",
            "active": 1,
            "waiting": 1
          },
          {
            "order": 4,
            "status": "wait_timeout",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 5,
            "status": "released",
            "active": 0,
            "waiting": 0
          },
          {
            "order": 6,
            "status": "admitted",
            "active": 1,
            "waiting": 0
          }
        ],
        "max_active": 1,
        "max_waiting": 1,
        "wait_seconds": 0.15
      },
      "server_after_completion": {
        "active": 0,
        "waiting": 0,
        "events": [
          {
            "order": 1,
            "status": "admitted",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 2,
            "status": "queued",
            "active": 1,
            "waiting": 1
          },
          {
            "order": 3,
            "status": "queue_full",
            "active": 1,
            "waiting": 1
          },
          {
            "order": 4,
            "status": "wait_timeout",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 5,
            "status": "released",
            "active": 0,
            "waiting": 0
          },
          {
            "order": 6,
            "status": "admitted",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 7,
            "status": "released",
            "active": 0,
            "waiting": 0
          }
        ],
        "max_active": 1,
        "max_waiting": 1,
        "wait_seconds": 0.15
      }
    },
    "fifo_promotion": {
      "responses": [
        {
          "http_status": 200,
          "status": "completed"
        },
        {
          "http_status": 200,
          "status": "completed"
        }
      ],
      "state": {
        "active": 0,
        "waiting": 0,
        "events": [
          {
            "order": 1,
            "status": "admitted",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 2,
            "status": "queued",
            "active": 1,
            "waiting": 1
          },
          {
            "order": 3,
            "status": "released",
            "active": 0,
            "waiting": 1
          },
          {
            "order": 4,
            "status": "promoted",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 5,
            "status": "released",
            "active": 0,
            "waiting": 0
          }
        ],
        "max_active": 1,
        "max_waiting": 1,
        "wait_seconds": 1
      }
    },
    "server_constructor_failure": {
      "response": {
        "http_status": 500,
        "status": "internal_error"
      },
      "state": {
        "active": 0,
        "waiting": 0,
        "events": [
          {
            "order": 1,
            "status": "admitted",
            "active": 1,
            "waiting": 0
          },
          {
            "order": 2,
            "status": "released",
            "active": 0,
            "waiting": 0
          }
        ],
        "max_active": 1,
        "max_waiting": 1,
        "wait_seconds": 0.15
      }
    }
  },
  "lifecycle": {
    "command": [
      "python3",
      "serve.py",
      "--fd",
      "<inherited-loopback-socket>",
      "--app",
      "delay_fixture:app"
    ],
    "startup_observed": true,
    "shutdown_exit_status": -15,
    "stdout": "",
    "stderr": "INFO:     Started server process [37400]\nINFO:     Waiting for application startup.\nINFO:     Application startup complete.\nINFO:     Shutting down\nINFO:     Waiting for application shutdown.\nINFO:     Application shutdown complete.\nINFO:     Finished server process [37400]\n",
    "shutdown_complete_observed": true,
    "server_process_reaped": true
  },
  "success_lifecycle": {
    "command": [
      "python3",
      "serve.py",
      "--fd",
      "<inherited-loopback-socket>",
      "--app",
      "success_fixture:app"
    ],
    "startup_observed": true,
    "shutdown_exit_status": -15,
    "stdout": "",
    "stderr": "INFO:     Started server process [37401]\nINFO:     Waiting for application startup.\nINFO:     Application startup complete.\nINFO:     Shutting down\nINFO:     Waiting for application shutdown.\nINFO:     Application shutdown complete.\nINFO:     Finished server process [37401]\n",
    "shutdown_complete_observed": true,
    "server_process_reaped": true
  },
  "fault_lifecycle": {
    "command": [
      "python3",
      "serve.py",
      "--fd",
      "<inherited-loopback-socket>",
      "--app",
      "fault_fixture:app"
    ],
    "startup_observed": true,
    "shutdown_exit_status": -15,
    "stdout": "",
    "stderr": "INFO:     Started server process [37403]\nINFO:     Waiting for application startup.\nINFO:     Application startup complete.\nINFO:     Shutting down\nINFO:     Waiting for application shutdown.\nINFO:     Application shutdown complete.\nINFO:     Finished server process [37403]\n",
    "shutdown_complete_observed": true,
    "server_process_reaped": true
  },
  "scope": "Trusted fixture delay exposes admission states; not a latency or capacity benchmark. Client timeout did not cancel server work. Direct task cancellation is tested separately. Corpus setup is outside gate; SQLite tools are created per worker after admission."
}