add_change_task
Add tasks to ServiceNow change requests to track work items, assign responsibilities, and schedule activities within change management workflows.
Instructions
Add a task to a change request
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| change_id | Yes | Change request ID or sys_id | |
| short_description | Yes | Short description of the task | |
| description | No | Detailed description of the task | |
| assigned_to | No | User assigned to the task | |
| planned_start_date | No | Planned start date (YYYY-MM-DD HH:MM:SS) | |
| planned_end_date | No | Planned end date (YYYY-MM-DD HH:MM:SS) |
Implementation Reference
- The main handler function that implements the add_change_task tool logic. It validates input parameters using AddChangeTaskParams, prepares the data, and makes a POST request to the ServiceNow API to create a new change task.def add_change_task( auth_manager: AuthManager, server_config: ServerConfig, params: Dict[str, Any], ) -> Dict[str, Any]: """ Add a task to a change request in ServiceNow. Args: auth_manager: The authentication manager. server_config: The server configuration. params: The parameters for adding a change task. Returns: The created change task. """ # Unwrap and validate parameters result = _unwrap_and_validate_params( params, AddChangeTaskParams, required_fields=["change_id", "short_description"] ) if not result["success"]: return result validated_params = result["params"] # Prepare the request data data = { "change_request": validated_params.change_id, "short_description": validated_params.short_description, } # Add optional fields if provided if validated_params.description: data["description"] = validated_params.description if validated_params.assigned_to: data["assigned_to"] = validated_params.assigned_to if validated_params.planned_start_date: data["planned_start_date"] = validated_params.planned_start_date if validated_params.planned_end_date: data["planned_end_date"] = validated_params.planned_end_date # Get the instance URL instance_url = _get_instance_url(auth_manager, server_config) if not instance_url: return { "success": False, "message": "Cannot find instance_url in either server_config or auth_manager", } # Get the headers headers = _get_headers(auth_manager, server_config) if not headers: return { "success": False, "message": "Cannot find get_headers method in either auth_manager or server_config", } # Add Content-Type header headers["Content-Type"] = "application/json" # Make the API request url = f"{instance_url}/api/now/table/change_task" try: response = requests.post(url, json=data, headers=headers) response.raise_for_status() result = response.json() return { "success": True, "message": "Change task added successfully", "change_task": result["result"], } except requests.exceptions.RequestException as e: logger.error(f"Error adding change task: {e}") return { "success": False, "message": f"Error adding change task: {str(e)}", }
- Pydantic BaseModel defining the input schema/validation for the add_change_task tool parameters.class AddChangeTaskParams(BaseModel): """Parameters for adding a task to a change request.""" change_id: str = Field(..., description="Change request ID or sys_id") short_description: str = Field(..., description="Short description of the task") description: Optional[str] = Field(None, description="Detailed description of the task") assigned_to: Optional[str] = Field(None, description="User assigned to the task") planned_start_date: Optional[str] = Field(None, description="Planned start date (YYYY-MM-DD HH:MM:SS)") planned_end_date: Optional[str] = Field(None, description="Planned end date (YYYY-MM-DD HH:MM:SS)")
- src/servicenow_mcp/utils/tool_utils.py:461-467 (registration)Registration of the 'add_change_task' tool in the central get_tool_definitions() function's dictionary. Maps the tool name to its handler function (aliased), params schema, return type hint, description, and serialization method."add_change_task": ( add_change_task_tool, AddChangeTaskParams, str, # Expects JSON string "Add a task to a change request", "json_dict", # Tool returns Pydantic model ),
- src/servicenow_mcp/tools/__init__.py:23-32 (registration)Re-export/import of the add_change_task function from change_tools.py in the tools package __init__.py, making it available at the package level.from servicenow_mcp.tools.change_tools import ( add_change_task, approve_change, create_change_request, get_change_request_details, list_change_requests, reject_change, submit_change_for_approval, update_change_request, )