{
  "record_date": "2026-10-14",
  "record_type": "scripted host demo rerun for website walkthrough verification",
  "redactions": "Host workspace/artifact paths and read source content omitted; outcomes, simulation cases and samples retained.",
  "request": "把温度采样间隔从 1 秒改成 500 毫秒，报警阈值改成 28℃，编译并测试，展示 Git 改动。",
  "driver": "scripted MCP client; no LLM used",
  "protocol_version": "2026-07-28",
  "tools": [
    "get_project_profile",
    "read_project_file",
    "set_sampling",
    "build_project",
    "run_simulation",
    "get_git_diff"
  ],
  "steps": [
    {
      "tool": "get_project_profile",
      "is_error": false,
      "result": {
        "name": "taiiot-temperature-demo",
        "target": "host-simulator",
        "sample_period_ms": 1000,
        "alarm_threshold_c": 60.0,
        "hardware_connected": false,
        "compiler_kind": "host C compiler",
        "git_repository": true
      }
    },
    {
      "tool": "read_project_file",
      "is_error": false,
      "result": {
        "path": "firmware/telemetry.c",
        "description": "Read the real host C application; source and machine paths omitted from this website evidence copy."
      }
    },
    {
      "tool": "set_sampling",
      "is_error": false,
      "result": {
        "status": "updated",
        "before": {
          "name": "taiiot-temperature-demo",
          "target": "host-simulator",
          "sample_period_ms": 1000,
          "alarm_threshold_c": 60.0
        },
        "after": {
          "name": "taiiot-temperature-demo",
          "target": "host-simulator",
          "sample_period_ms": 500,
          "alarm_threshold_c": 28.0
        },
        "requires_rebuild": true
      }
    },
    {
      "tool": "build_project",
      "is_error": false,
      "result": {
        "status": "passed",
        "target": "host-simulator",
        "hardware_tested": false,
        "compiler": "cc",
        "options": [
          "-std=c11",
          "-Wall",
          "-Wextra",
          "-Werror",
          "-O2"
        ],
        "stdout": "",
        "stderr": ""
      }
    },
    {
      "tool": "run_simulation",
      "is_error": false,
      "result": {
        "status": "passed",
        "simulation": true,
        "hardware_tested": false,
        "clock": "simulated; does not measure real-time timing",
        "sensor": "synthetic temperature sequence; no Modbus or MQTT connection",
        "cases": [
          {
            "case": "no_sample_before_period",
            "passed": true
          },
          {
            "case": "sample_at_period",
            "passed": true
          },
          {
            "case": "clock_wraparound",
            "passed": true
          },
          {
            "case": "no_alarm_below_threshold",
            "passed": true
          },
          {
            "case": "alarm_at_threshold",
            "passed": true
          },
          {
            "case": "alarm_above_threshold",
            "passed": true
          },
          {
            "case": "observed_sample_intervals",
            "passed": true
          }
        ],
        "samples": [
          {
            "sequence": 0,
            "time_ms": 0,
            "temperature_c": 24.5,
            "alarm": false
          },
          {
            "sequence": 1,
            "time_ms": 500,
            "temperature_c": 25.0,
            "alarm": false
          },
          {
            "sequence": 2,
            "time_ms": 1000,
            "temperature_c": 25.5,
            "alarm": false
          },
          {
            "sequence": 3,
            "time_ms": 1500,
            "temperature_c": 26.0,
            "alarm": false
          },
          {
            "sequence": 4,
            "time_ms": 2000,
            "temperature_c": 26.5,
            "alarm": false
          },
          {
            "sequence": 5,
            "time_ms": 2500,
            "temperature_c": 27.0,
            "alarm": false
          },
          {
            "sequence": 6,
            "time_ms": 3000,
            "temperature_c": 27.5,
            "alarm": false
          },
          {
            "sequence": 7,
            "time_ms": 3500,
            "temperature_c": 28.0,
            "alarm": true
          },
          {
            "sequence": 8,
            "time_ms": 4000,
            "temperature_c": 28.5,
            "alarm": true
          },
          {
            "sequence": 9,
            "time_ms": 4500,
            "temperature_c": 29.0,
            "alarm": true
          }
        ],
        "alarm_count": 3,
        "stderr": ""
      }
    },
    {
      "tool": "get_git_diff",
      "is_error": false,
      "result": {
        "status": "passed",
        "git_status": " M project.json\n",
        "diff": "diff --git a/project.json b/project.json\nindex 370ad4d..e894c50 100644\n--- a/project.json\n+++ b/project.json\n@@ -1,6 +1,6 @@\n {\n   \"name\": \"taiiot-temperature-demo\",\n   \"target\": \"host-simulator\",\n-  \"sample_period_ms\": 1000,\n-  \"alarm_threshold_c\": 60.0\n+  \"sample_period_ms\": 500,\n+  \"alarm_threshold_c\": 28.0\n }\n",
        "remote_access": false
      }
    }
  ]
}