{
  "schema_version": 1,
  "recorded_at_utc": "2026-09-14T20:58:16.4943664Z",
  "status": "author-run, AI-instrumented B-A-B withdrawal and reinstatement",
  "scope": {
    "machines": 1,
    "packages": 1,
    "independent_reproduction": false
  },
  "environment": {
    "os": "Windows 11 Pro 25H2, build 26200.9445",
    "package_full_name": "Claude_1.52386.6.0_x64__pzs8sxrjxfjjc",
    "package_status": "Ok",
    "aumid": "Claude_pzs8sxrjxfjjc!Claude",
    "profile": "%LOCALAPPDATA%\\Packages\\Claude_pzs8sxrjxfjjc"
  },
  "intervention": {
    "bundle": [
      {
        "sid": "S-1-5-18",
        "identity": "NT AUTHORITY\\SYSTEM",
        "rights": "FullControl",
        "inheritance": ["ObjectInherit", "ContainerInherit"]
      },
      {
        "sid": "S-1-5-32-544",
        "identity": "BUILTIN\\Administrators",
        "rights": "FullControl",
        "inheritance": ["ObjectInherit", "ContainerInherit"]
      }
    ],
    "note": "Both entries were withdrawn and restored together; the run does not identify either SID as individually necessary."
  },
  "method": {
    "launch": "explorer.exe shell:AppsFolder\\Claude_pzs8sxrjxfjjc!Claude",
    "outcome": "A packaged Claude.exe process with a visible main window",
    "process_fence": "Only Claude.exe processes under C:\\Program Files\\WindowsApps\\Claude_* were stopped.",
    "commands_not_invoked": [
      "Reinstall or re-registration",
      "Reboot",
      "Service control",
      "Package-payload modification",
      "Targeting of a separately installed Claude CLI"
    ],
    "file_contents_exhaustively_compared": false,
    "shell_elevation_recorded": false,
    "launches_scored_per_phase": 1,
    "restoration": "The grant ran in a finally block; final profile state and launch were checked.",
    "observation_limits": [
      "The instrumented run did not capture the Windows shell dialog.",
      "The run did not test whether ordinary window-close or full exit removed the ACL entries.",
      "The failed phase recorded no visible-window PID, but not a final all-process census."
    ]
  },
  "phases": [
    {
      "name": "B1_present",
      "started_at_utc": "2026-09-14T20:57:47.7675040Z",
      "observed_at_utc": "2026-09-14T20:57:48.8094758Z",
      "system_ace_present": true,
      "administrators_ace_present": true,
      "visible_window": true,
      "observation_seconds": 1.04,
      "appmodel_runtime_events": [
        {"id": 210, "level": "Information", "finding": "Desktop AppX container created"},
        {"id": 211, "level": "Information", "finding": "Process added to Desktop AppX container"},
        {"id": 201, "level": "Information", "finding": "Application process created at LaunchProcess"}
      ]
    },
    {
      "name": "A2_absent",
      "started_at_utc": "2026-09-14T20:58:00.1734512Z",
      "observed_at_utc": "2026-09-14T20:58:15.3832370Z",
      "system_ace_present": false,
      "administrators_ace_present": false,
      "visible_window": false,
      "observation_seconds": 15.21,
      "final_all_process_census_recorded": false,
      "icacls_reported_files_processed": 51,
      "icacls_reported_files_failed": 0,
      "appmodel_runtime_events": [
        {
          "id": 208,
          "level": "Error",
          "time_utc": "2026-09-14T20:58:00.3778286Z",
          "hresult": "0x80070005",
          "stage": "LaunchProcess",
          "message": "Cannot create the process for package Claude_1.52386.6.0_x64__pzs8sxrjxfjjc because an error was encountered while configuring runtime."
        },
        {
          "id": 211,
          "level": "Information",
          "time_utc": "2026-09-14T20:58:01.5156314Z",
          "finding": "A process was added to the Desktop AppX container during the failed phase; the process ID is redacted."
        },
        {
          "id": 208,
          "level": "Error",
          "time_utc": "2026-09-14T20:58:01.5867667Z",
          "hresult": "0x80070005",
          "stage": "LaunchProcess",
          "message": "Cannot create the process for package Claude_1.52386.6.0_x64__pzs8sxrjxfjjc because an error was encountered while configuring runtime."
        }
      ]
    },
    {
      "name": "B2_present",
      "started_at_utc": "2026-09-14T20:58:15.4505599Z",
      "observed_at_utc": "2026-09-14T20:58:16.4842797Z",
      "system_ace_present": true,
      "administrators_ace_present": true,
      "visible_window": true,
      "observation_seconds": 1.03,
      "icacls_reported_files_processed": 53,
      "icacls_reported_files_failed": 0,
      "appmodel_runtime_events": [
        {"id": 210, "level": "Information", "finding": "Desktop AppX container created"},
        {"id": 211, "level": "Information", "finding": "Process added to Desktop AppX container"},
        {"id": 201, "level": "Information", "finding": "Application process created at LaunchProcess"}
      ]
    }
  ],
  "result": "The two-SID ACL treatment tracked Claude Desktop visible cold-launch outcome and AppModel-Runtime events in both directions on this machine.",
  "final_state": {
    "system_ace_present": true,
    "administrators_ace_present": true,
    "claude_window_open": true
  },
  "limitations": [
    "One machine and one Claude package version",
    "No independent reproduction",
    "Both ACEs toggled as one bundle",
    "The run did not capture the shell dialog or show that ordinary closing removed the entries",
    "The minimum trustees, rights, inheritance, and propagation scope were not tested",
    "Mechanism, origin, prevalence, and update durability remain open"
  ],
  "redactions": {
    "removed": [
      "Computer and account names",
      "Absolute user-profile path",
      "Process IDs"
    ],
    "retained": [
      "Phase timestamps",
      "ACL rights and inheritance",
      "AppModel-Runtime events",
      "HRESULTs and activation stages",
      "Visible-window outcomes",
      "icacls command summaries"
    ]
  }
}