{
  "schemaVersion": 1,
  "platform": "linux-desktop",
  "status": "requires_device_evidence",
  "target": {
    "minimumDistribution": "Ubuntu 22.04 or equivalent modern desktop Linux",
    "displayServer": "X11 required for xdotool/wmctrl path; Wayland portal capture remains a separate manual check",
    "driver": "nutjs preferred; legacy xdotool/scrot/wmctrl fallback allowed"
  },
  "evidence": {
    "machineId": null,
    "distribution": null,
    "kernelVersion": null,
    "displayServer": null,
    "buildId": null,
    "validatedAt": null,
    "validator": null,
    "artifacts": []
  },
  "checks": [
    {
      "id": "capabilityProbe",
      "method": "detectPlatformCapabilities/getCapabilities",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "platform is linux",
        "screenshot, computerUse, windowList, browser, terminal, fileSystem, and clipboard capabilities are reported",
        "missing optional tools produce explicit unavailable/tool messages"
      ]
    },
    {
      "id": "dependencyProbe",
      "method": "ensure-platform-deps / commandExists",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "xdotool or nutjs driver availability is recorded",
        "screenshot backend availability is recorded",
        "wmctrl or xdotool window-list backend availability is recorded",
        "wl-clipboard, xclip, or xsel clipboard backend availability is recorded"
      ]
    },
    {
      "id": "screenshotCapture",
      "method": "captureDisplay/capturePrimaryDisplay",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "primary display capture returns non-empty PNG bytes",
        "captured dimensions match display metadata",
        "screenshot artifact is attached"
      ]
    },
    {
      "id": "mouseKeyboardInput",
      "method": "ComputerUseService desktop actions",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "mouse_move succeeds",
        "click or double_click succeeds on a harmless target",
        "type and key actions succeed in a controlled text field",
        "post-action screenshot is captured when configured"
      ]
    },
    {
      "id": "windowListFocus",
      "method": "listWindows/focusWindow",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "listWindows returns visible windows with app/process metadata",
        "focusWindow focuses a safe target window",
        "window operation failures include dependency guidance"
      ]
    },
    {
      "id": "browserAutomation",
      "method": "browser open/navigate/get/screenshot/close",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "browser target opens or attaches to a supported Chromium browser",
        "navigate/get/screenshot succeed",
        "browser cleanup closes the test tab"
      ]
    },
    {
      "id": "clipboardRoundTrip",
      "method": "readClipboard/writeClipboard",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "configured Linux clipboard backend writes a test token",
        "configured Linux clipboard backend reads the same test token",
        "missing clipboard backend returns ClipboardUnavailableError"
      ]
    },
    {
      "id": "terminalSafety",
      "method": "terminal execution safety",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "allowed harmless shell command succeeds",
        "dangerous or blocked command is rejected",
        "timeout behavior is recorded"
      ]
    },
    {
      "id": "approvalMode",
      "method": "ComputerUseApprovalManager",
      "status": "requires_device_evidence",
      "requiredEvidence": [
        "smart_approve auto-approves read-only actions",
        "destructive actions require approval",
        "full_control/approve_all/off modes behave as configured"
      ]
    }
  ]
}