window_set_frame

Screen, windows & UI · macOS · Windows

Effect: write (strongest supported action). Status: gated.

Gated means the tool requires an installed app, a connected account, permission, or runtime availability. Check those requirements on the listed platform before using it.

macOS

Purpose

Pins a window (by window_id) to fixed bounds {x,y,w,h} in global points, so every take is framed identically across runs. Returns the actual post-constraint bounds. Refuses LMCP's own windows (web-automation sessions, tray) with own_window; use web_show for those. Requires Accessibility permission.

Required inputs

window_id — Window to move or resize, from list_windows.
bounds — {x,y,w,h} global points.

Permissions and confirmation

No explicit confirmation parameter is exposed in this snapshot. This does not grant permission to act: obtain user authorization before any real action.

Use only the apps, accounts and resources authorized by the user on this platform. Consult this tool's platform-specific description for its connection and permission requirements; this catalog does not assert additional OAuth scopes or OS entitlements.

Full input schema — macOS

{
  "properties": {
    "bounds": {
      "description": "{x,y,w,h} global points.",
      "type": "object"
    },
    "window_id": {
      "description": "Window to move or resize, from list_windows.",
      "type": "string"
    }
  },
  "required": [
    "window_id",
    "bounds"
  ],
  "type": "object"
}

Documentation example

Do not execute this example. These concrete inputs refer to a fictional demonstration dataset. Resolve real handles and obtain user authorization before any real call.

{
  "bounds": {
    "h": 720,
    "w": 1280,
    "x": 100,
    "y": 100
  },
  "window_id": "101"
}

Windows

Purpose

Moves and resizes a window to the given rectangle. Pass window_id (HWND from list_windows) and bounds {x,y,w,h}. Returns the actual post-move bounds. The first call returns a preview naming the window and moves nothing; confirm=true moves it. Windows-only.

Required inputs

window_id — The window id (HWND as a decimal string) from list_windows.
bounds — Target rectangle in pixels.

Permissions and confirmation

Explicit confirmation parameter: inspect the schema and tool description before any real call. The documentation example keeps confirm false. Obtain user authorization before performing the action.

Use only the apps, accounts and resources authorized by the user on this platform. Consult this tool's platform-specific description for its connection and permission requirements; this catalog does not assert additional OAuth scopes or OS entitlements.

Full input schema — Windows

{
  "properties": {
    "bounds": {
      "description": "Target rectangle in pixels.",
      "properties": {
        "h": {
          "type": "integer"
        },
        "w": {
          "type": "integer"
        },
        "x": {
          "type": "integer"
        },
        "y": {
          "type": "integer"
        }
      },
      "required": [
        "x",
        "y",
        "w",
        "h"
      ],
      "type": "object"
    },
    "confirm": {
      "description": "Must be true to act on the window. Without it, returns a preview.",
      "type": "boolean"
    },
    "window_id": {
      "description": "The window id (HWND as a decimal string) from list_windows.",
      "type": "string"
    }
  },
  "required": [
    "window_id",
    "bounds"
  ],
  "type": "object"
}

Documentation example

Do not execute this example. These concrete inputs refer to a fictional demonstration dataset. Resolve real handles and obtain user authorization before any real call.

{
  "bounds": {
    "h": 720,
    "w": 1280,
    "x": 100,
    "y": 100
  },
  "confirm": false,
  "window_id": "101"
}