Google Workspace MCP Server - Control Gmail, Calendar, Docs, Sheets, Slides, Chat, Forms & Drive

Instructions

Implementation Reference

• gmail/gmail_tools.py:1177-1255 (handler)

  The handler function for the 'manage_gmail_label' tool. It handles creating, updating, or deleting Gmail labels based on the provided action, using the Gmail API via the service object.
  @server.tool() @handle_http_errors("manage_gmail_label", service_type="gmail") @require_google_service("gmail", GMAIL_LABELS_SCOPE) async def manage_gmail_label( service, user_google_email: str, action: Literal["create", "update", "delete"], name: Optional[str] = None, label_id: Optional[str] = None, label_list_visibility: Literal["labelShow", "labelHide"] = "labelShow", message_list_visibility: Literal["show", "hide"] = "show", ) -> str: """ Manages Gmail labels: create, update, or delete labels. Args: user_google_email (str): The user's Google email address. Required. action (Literal["create", "update", "delete"]): Action to perform on the label. name (Optional[str]): Label name. Required for create, optional for update. label_id (Optional[str]): Label ID. Required for update and delete operations. label_list_visibility (Literal["labelShow", "labelHide"]): Whether the label is shown in the label list. message_list_visibility (Literal["show", "hide"]): Whether the label is shown in the message list. Returns: str: Confirmation message of the label operation. """ logger.info( f"[manage_gmail_label] Invoked. Email: '{user_google_email}', Action: '{action}'" ) if action == "create" and not name: raise Exception("Label name is required for create action.") if action in ["update", "delete"] and not label_id: raise Exception("Label ID is required for update and delete actions.") if action == "create": label_object = { "name": name, "labelListVisibility": label_list_visibility, "messageListVisibility": message_list_visibility, } created_label = await asyncio.to_thread( service.users().labels().create(userId="me", body=label_object).execute ) return f"Label created successfully!\nName: {created_label['name']}\nID: {created_label['id']}" elif action == "update": current_label = await asyncio.to_thread( service.users().labels().get(userId="me", id=label_id).execute ) label_object = { "id": label_id, "name": name if name is not None else current_label["name"], "labelListVisibility": label_list_visibility, "messageListVisibility": message_list_visibility, } updated_label = await asyncio.to_thread( service.users() .labels() .update(userId="me", id=label_id, body=label_object) .execute ) return f"Label updated successfully!\nName: {updated_label['name']}\nID: {updated_label['id']}" elif action == "delete": label = await asyncio.to_thread( service.users().labels().get(userId="me", id=label_id).execute ) label_name = label["name"] await asyncio.to_thread( service.users().labels().delete(userId="me", id=label_id).execute ) return f"Label '{label_name}' (ID: {label_id}) deleted successfully!"