# pr 25216 real dev verification

2026-10-28, linux boat vm. playwright 1.60.0, /usr/bin/google-chrome. real web composer -> codex gpt-6.1-sol -> t3-code MCP -> running dev server. projects and threads created through the app. no mocks or seeded scenario data.

## github/main f6d3700ac3

### device_screenshot({})

```json
{
  "content": [
    {
      "type": "text",
      "text": "Device screenshot failed."
    }
  ],
  "structuredContent": {
    "error": {
      "_tag": "DeviceToolUnavailableError",
      "operation": "screenshot",
      "failureCount": 1
    }
  },
  "_meta": null
}
```

### device_screenshot({"deviceId":"missing","hostId":"local"})

```json
{
  "content": [
    {
      "type": "text",
      "text": "Device screenshot failed."
    }
  ],
  "structuredContent": {
    "error": {
      "_tag": "DeviceToolUnavailableError",
      "operation": "screenshot",
      "failureCount": 1
    }
  },
  "_meta": null
}
```

### device_list({})

```json
{
  "content": [
    {
      "type": "text",
      "text": "{\"hostStatuses\":{},\"hosts\":[{\"id\":\"local\",\"label\":\"This machine\",\"platforms\":[{\"platform\":\"ios\",\"available\":false,\"reason\":\"iOS Simulators need macOS with Xcode.\"},{\"platform\":\"android\",\"available\":false,\"reason\":\"Android Emulator is missing from /usr/lib/android-sdk. Install it in Android Studio's SDK Manager.\"}],\"tools\":{\"hub\":{\"requiredVersion\":\"0.19.0-canary-20261023-1357114\",\"installedVersions\":[],\"runningVersion\":null},\"agent\":{\"requiredVersion\":\"0.21.31\",\"installedVersions\":[],\"runningVersion\":null}},\"hubInstalled\":false,\"agentDeviceInstalled\":false,\"kind\":\"local\"}],\"devices\":[],\"open\":[]}"
    }
  ],
  "structuredContent": {
    "hostStatuses": {},
    "hosts": [
      {
        "id": "local",
        "label": "This machine",
        "platforms": [
          {
            "platform": "ios",
            "available": false,
            "reason": "iOS Simulators need macOS with Xcode."
          },
          {
            "platform": "android",
            "available": false,
            "reason": "Android Emulator is missing from /usr/lib/android-sdk. Install it in Android Studio's SDK Manager."
          }
        ],
        "tools": {
          "hub": {
            "requiredVersion": "0.19.0-canary-20261023-1357114",
            "installedVersions": [],
            "runningVersion": null
          },
          "agent": {
            "requiredVersion": "0.21.31",
            "installedVersions": [],
            "runningVersion": null
          }
        },
        "hubInstalled": false,
        "agentDeviceInstalled": false,
        "kind": "local"
      }
    ],
    "devices": [],
    "open": []
  },
  "_meta": null
}
```

## pr head c313e782817ee44b3e70668a26b5be77c9950519

### device_screenshot({})

```json
{
  "content": [
    {
      "type": "text",
      "text": "No device is open in this thread. Call device_open first."
    }
  ],
  "structuredContent": {
    "error": {
      "_tag": "DeviceToolUnavailableError",
      "operation": "screenshot",
      "failureCount": 1,
      "message": "No device is open in this thread. Call device_open first."
    }
  },
  "_meta": null
}
```

### device_screenshot({"deviceId":"missing","hostId":"local"})

```json
{
  "content": [
    {
      "type": "text",
      "text": "Device missing on host local is not open in this thread. Call device_open first."
    }
  ],
  "structuredContent": {
    "error": {
      "_tag": "DeviceToolUnavailableError",
      "operation": "screenshot",
      "failureCount": 1,
      "message": "Device missing on host local is not open in this thread. Call device_open first."
    }
  },
  "_meta": null
}
```

### device_list({})

```json
{
  "content": [
    {
      "type": "text",
      "text": "{\"hostStatuses\":{},\"hosts\":[{\"id\":\"local\",\"label\":\"This machine\",\"platforms\":[{\"platform\":\"ios\",\"available\":false,\"reason\":\"iOS Simulators need macOS with Xcode.\"},{\"platform\":\"android\",\"available\":false,\"reason\":\"Android Emulator is missing from /usr/lib/android-sdk. Install it in Android Studio's SDK Manager.\"}],\"tools\":{\"hub\":{\"requiredVersion\":\"0.15.3\",\"installedVersions\":[],\"runningVersion\":null},\"agent\":{\"requiredVersion\":\"0.21.31\",\"installedVersions\":[],\"runningVersion\":null}},\"hubInstalled\":false,\"agentDeviceInstalled\":false,\"kind\":\"local\"}],\"devices\":[],\"open\":[]}"
    }
  ],
  "structuredContent": {
    "hostStatuses": {},
    "hosts": [
      {
        "id": "local",
        "label": "This machine",
        "platforms": [
          {
            "platform": "ios",
            "available": false,
            "reason": "iOS Simulators need macOS with Xcode."
          },
          {
            "platform": "android",
            "available": false,
            "reason": "Android Emulator is missing from /usr/lib/android-sdk. Install it in Android Studio's SDK Manager."
          }
        ],
        "tools": {
          "hub": {
            "requiredVersion": "0.15.3",
            "installedVersions": [],
            "runningVersion": null
          },
          "agent": {
            "requiredVersion": "0.21.31",
            "installedVersions": [],
            "runningVersion": null
          }
        },
        "hubInstalled": false,
        "agentDeviceInstalled": false,
        "kind": "local"
      }
    ],
    "devices": [],
    "open": []
  },
  "_meta": null
}
```

### device_close({})

```json
{
  "content": [
    {
      "type": "text",
      "text": "{}"
    }
  ],
  "structuredContent": {},
  "_meta": null
}
```

### device_list({})

```json
{
  "content": [
    {
      "type": "text",
      "text": "{\"hostStatuses\":{},\"hosts\":[{\"id\":\"local\",\"label\":\"This machine\",\"platforms\":[{\"platform\":\"ios\",\"available\":false,\"reason\":\"iOS Simulators need macOS with Xcode.\"},{\"platform\":\"android\",\"available\":false,\"reason\":\"Android Emulator is missing from /usr/lib/android-sdk. Install it in Android Studio's SDK Manager.\"}],\"tools\":{\"hub\":{\"requiredVersion\":\"0.15.3\",\"installedVersions\":[],\"runningVersion\":null},\"agent\":{\"requiredVersion\":\"0.21.31\",\"installedVersions\":[],\"runningVersion\":null}},\"hubInstalled\":false,\"agentDeviceInstalled\":false,\"kind\":\"local\"}],\"devices\":[],\"open\":[]}"
    }
  ],
  "structuredContent": {
    "hostStatuses": {},
    "hosts": [
      {
        "id": "local",
        "label": "This machine",
        "platforms": [
          {
            "platform": "ios",
            "available": false,
            "reason": "iOS Simulators need macOS with Xcode."
          },
          {
            "platform": "android",
            "available": false,
            "reason": "Android Emulator is missing from /usr/lib/android-sdk. Install it in Android Studio's SDK Manager."
          }
        ],
        "tools": {
          "hub": {
            "requiredVersion": "0.15.3",
            "installedVersions": [],
            "runningVersion": null
          },
          "agent": {
            "requiredVersion": "0.21.31",
            "installedVersions": [],
            "runningVersion": null
          }
        },
        "hubInstalled": false,
        "agentDeviceInstalled": false,
        "kind": "local"
      }
    ],
    "devices": [],
    "open": []
  },
  "_meta": null
}
```

## checks

blacksmith: vp test run apps/server/src/mcp/McpHttpServer.test.ts apps/server/src/device/DeviceService.test.ts apps/server/src/mcp/McpDeviceToolkit.test.ts
57 tests passed across 3 files. existing CI: 29 successful, 0 failing/pending.

## not verified

successful image capture, real hub HTTP rejection / transport failures, physical devices, SSH hosts, native mobile clients, macOS/Windows. no devices available: iOS requires macOS/Xcode; Android Emulator missing. unit tests cover hub rejection but are not a live-device claim.