ServiceNow MCP Server

Instructions

Implementation Reference

• src/servicenow_mcp/tools/workflow_tools.py:843-890 (handler)

  Implements the core logic for the delete_workflow_activity tool by sending a DELETE request to the ServiceNow wf_activity table endpoint.

  def delete_workflow_activity(
      auth_manager: AuthManager,
      server_config: ServerConfig,
      params: Dict[str, Any],
  ) -> Dict[str, Any]:
      """
      Delete an activity from a workflow.
      
      Args:
          auth_manager: Authentication manager
          server_config: Server configuration
          params: Parameters for deleting a workflow activity
          
      Returns:
          Dict[str, Any]: Result of the deletion operation
      """
      # Unwrap parameters if needed
      params = _unwrap_params(params, DeleteWorkflowActivityParams)
      
      # Get the correct auth_manager and server_config
      try:
          auth_manager, server_config = _get_auth_and_config(auth_manager, server_config)
      except ValueError as e:
          logger.error(f"Error getting auth and config: {e}")
          return {"error": str(e)}
      
      activity_id = params.get("activity_id")
      if not activity_id:
          return {"error": "Activity ID is required"}
      
      # Make the API request
      try:
          headers = auth_manager.get_headers()
          url = f"{server_config.instance_url}/api/now/table/wf_activity/{activity_id}"
          
          response = requests.delete(url, headers=headers)
          response.raise_for_status()
          
          return {
              "message": "Activity deleted successfully",
              "activity_id": activity_id,
          }
      except requests.RequestException as e:
          logger.error(f"Error deleting workflow activity: {e}")
          return {"error": str(e)}
      except Exception as e:
          logger.error(f"Unexpected error deleting workflow activity: {e}")
          return {"error": str(e)}

• src/servicenow_mcp/tools/workflow_tools.py:107-111 (schema)

  Pydantic model defining the input parameters for the delete_workflow_activity tool, requiring an activity_id.

  class DeleteWorkflowActivityParams(BaseModel):
      """Parameters for deleting a workflow activity."""
      
      activity_id: str = Field(..., description="Activity ID or sys_id")

• src/servicenow_mcp/utils/tool_utils.py:617-623 (registration)

  Registers the delete_workflow_activity tool in the MCP tool definitions dictionary, specifying the handler function alias, params model, return type, description, and serialization method.

  "delete_workflow_activity": (
      delete_workflow_activity_tool,
      DeleteWorkflowActivityParams,
      str,
      "Delete an activity from a workflow",
      "str",  # Tool returns simple message
  ),

• src/servicenow_mcp/tools/__init__.py:79-92 (registration)

  Imports the delete_workflow_activity function from workflow_tools.py to expose it at the tools package level.

  from servicenow_mcp.tools.workflow_tools import (
      activate_workflow,
      add_workflow_activity,
      create_workflow,
      deactivate_workflow,
      delete_workflow_activity,
      get_workflow_activities,
      get_workflow_details,
      list_workflow_versions,
      list_workflows,
      reorder_workflow_activities,
      update_workflow,
      update_workflow_activity,
  )

• src/servicenow_mcp/utils/tool_utils.py:270-272 (registration)

  Imports the delete_workflow_activity function aliased as delete_workflow_activity_tool for use in tool registration.

  from servicenow_mcp.tools.workflow_tools import (
      delete_workflow_activity as delete_workflow_activity_tool,
  )