update_task
Modify an existing task's details within the DeltaTask MCP Server by specifying its ID and desired updates, ensuring efficient task management and organization.
Instructions
Update an existing task.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| task_id | Yes | ||
| updates | Yes |
Implementation Reference
- server.py:47-50 (handler)MCP tool registration and handler function for 'update_task'. The @mcp.tool() decorator registers the tool, and the function handles the tool execution by calling the TaskService method.@mcp.tool() async def update_task(task_id: str, updates: dict[str, Any]) -> dict[str, Any]: """Update an existing task.""" return service.update_task_by_id(task_id, updates)
- Core helper method in TaskService that implements the update logic: validates inputs, updates the database, refreshes the markdown file, and updates task views.def update_task_by_id(self, task_id: str, updates: Dict[str, Any]) -> Dict[str, Any]: """Update a task and return success status.""" logger.info(f"Updating task {task_id} with: {updates}") try: # Check if task exists existing_task = self.repository.get_todo_by_id(task_id) if not existing_task: logger.warning(f"Attempted to update non-existent task: {task_id}") return {"error": "Task not found"} # Validate fibonacci sequence for effort valid_efforts = [1, 2, 3, 5, 8, 13, 21] if 'effort' in updates and updates['effort'] not in valid_efforts: error_msg = f"Effort must be a Fibonacci number from {valid_efforts}" logger.error(f"Invalid effort value {updates['effort']} for task {task_id}") raise ValueError(error_msg) # Validate urgency if 'urgency' in updates and not 1 <= updates['urgency'] <= 5: error_msg = "Urgency must be between 1 and 5" logger.error(f"Invalid urgency value {updates['urgency']} for task {task_id}") raise ValueError(error_msg) try: # Update in database success = self.repository.update_todo(task_id, updates) if not success: logger.error(f"Database update failed for task {task_id}") return {"error": "Failed to update task in database"} logger.info(f"Task {task_id} updated in database") except Exception as e: logger.error(f"Error updating task {task_id} in database: {e}", exc_info=True) raise try: # Get updated task updated_task = self.repository.get_todo_by_id(task_id) if not updated_task: logger.error(f"Could not retrieve updated task {task_id}") return {"error": "Failed to retrieve updated task"} # Update markdown file self.markdown_manager.update_task_file(updated_task) logger.info(f"Markdown file updated for task {task_id}") except Exception as e: logger.error(f"Error updating markdown for task {task_id}: {e}", exc_info=True) # Continue even if markdown update fails try: # Update views self._update_all_views() logger.info("Task views updated after task update") except Exception as e: logger.error(f"Error updating views after task update: {e}", exc_info=True) # Continue even if views update fails return {"message": "Task updated successfully"} except ValueError as e: # Handle validation errors logger.error(f"Validation error updating task {task_id}: {e}", exc_info=True) return {"error": str(e)} except Exception as e: # Handle other errors logger.error(f"Unexpected error updating task {task_id}: {e}", exc_info=True) return {"error": f"Failed to update task: {str(e)}"}