feat: add react-query for state handling, it was becoming complex

apps/extension/package.json

@@ -269,7 +269,8 @@
 		"postcss": "8.5.6",
 		"tailwind-merge": "^3.3.1",
 		"tailwindcss": "4.1.11",
-		"typescript": "^5.8.3"
+		"typescript": "^5.8.3",
+		"@tanstack/react-query": "^5.83.0"
 	},
 	"pnpm": {
 		"overrides": {

apps/extension/src/components/TaskDetails/AIActionsSection.tsx

@@ -5,6 +5,10 @@ import { Label } from '@/components/ui/label';
 import { Textarea } from '@/components/ui/textarea';
 import { CollapsibleSection } from '@/components/ui/CollapsibleSection';
 import { Wand2, Loader2, PlusCircle } from 'lucide-react';
+import {
+	useUpdateTask,
+	useUpdateSubtask
+} from '../../webview/hooks/useTaskQueries';
 import type { TaskMasterTask } from '../../webview/types';
 
 interface AIActionsSectionProps {
@@ -27,42 +31,33 @@ export const AIActionsSection: React.FC<AIActionsSectionProps> = ({
 	onAppendingChange
 }) => {
 	const [prompt, setPrompt] = useState('');
-	const [isRegenerating, setIsRegenerating] = useState(false);
+	const updateTask = useUpdateTask();
-	const [isAppending, setIsAppending] = useState(false);
+	const updateSubtask = useUpdateSubtask();
 
 	const handleRegenerate = async () => {
 		if (!currentTask || !prompt.trim()) {
 			return;
 		}
 
-		setIsRegenerating(true);
 		try {
 			if (isSubtask && parentTask) {
-				await sendMessage({
+				await updateSubtask.mutateAsync({
-					type: 'updateSubtask',
+					taskId: `${parentTask.id}.${currentTask.id}`,
-					data: {
+					prompt: prompt,
-						taskId: `${parentTask.id}.${currentTask.id}`,
+					options: { research: false }
-						prompt: prompt,
-						options: { research: false }
-					}
 				});
 			} else {
-				await sendMessage({
+				await updateTask.mutateAsync({
-					type: 'updateTask',
+					taskId: currentTask.id,
-					data: {
+					updates: { description: prompt },
-						taskId: currentTask.id,
+					options: { append: false, research: false }
-						updates: { description: prompt },
-						options: { append: false, research: false }
-					}
 				});
 			}
 
+			setPrompt('');
 			refreshComplexityAfterAI();
 		} catch (error) {
 			console.error('❌ TaskDetailsView: Failed to regenerate task:', error);
-		} finally {
-			setIsRegenerating(false);
-			setPrompt('');
 		}
 	};
 
@@ -71,37 +66,32 @@ export const AIActionsSection: React.FC<AIActionsSectionProps> = ({
 			return;
 		}
 
-		setIsAppending(true);
 		try {
 			if (isSubtask && parentTask) {
-				await sendMessage({
+				await updateSubtask.mutateAsync({
-					type: 'updateSubtask',
+					taskId: `${parentTask.id}.${currentTask.id}`,
-					data: {
+					prompt: prompt,
-						taskId: `${parentTask.id}.${currentTask.id}`,
+					options: { research: false }
-						prompt: prompt,
-						options: { research: false }
-					}
 				});
 			} else {
-				await sendMessage({
+				await updateTask.mutateAsync({
-					type: 'updateTask',
+					taskId: currentTask.id,
-					data: {
+					updates: { description: prompt },
-						taskId: currentTask.id,
+					options: { append: true, research: false }
-						updates: { description: prompt },
-						options: { append: true, research: false }
-					}
 				});
 			}
 
+			setPrompt('');
 			refreshComplexityAfterAI();
 		} catch (error) {
 			console.error('❌ TaskDetailsView: Failed to append to task:', error);
-		} finally {
-			setIsAppending(false);
-			setPrompt('');
 		}
 	};
 
+	// Track loading states
+	const isRegenerating = updateTask.isPending || updateSubtask.isPending;
+	const isAppending = updateTask.isPending || updateSubtask.isPending;
+
 	return (
 		<CollapsibleSection
 			title="AI Actions"

apps/extension/src/components/TaskDetails/useTaskDetails.ts

@@ -1,4 +1,5 @@
-import { useEffect, useState, useCallback } from 'react';
+import { useMemo } from 'react';
+import { useTaskDetails as useTaskDetailsQuery } from '../../webview/hooks/useTaskQueries';
 import type { TaskMasterTask } from '../../webview/types';
 
 interface TaskFileData {
@@ -17,162 +18,96 @@ export const useTaskDetails = ({
 	sendMessage,
 	tasks
 }: UseTaskDetailsProps) => {
-	const [taskFileData, setTaskFileData] = useState<TaskFileData>({});
-	const [taskFileDataError, setTaskFileDataError] = useState<string | null>(
-		null
-	);
-	const [complexity, setComplexity] = useState<any>(null);
-	const [currentTask, setCurrentTask] = useState<TaskMasterTask | null>(null);
-	const [parentTask, setParentTask] = useState<TaskMasterTask | null>(null);
-
-	// Determine if this is a subtask
-	const isSubtask = taskId.includes('.');
-
 	// Parse task ID to determine if it's a subtask (e.g., "13.2")
-	const parseTaskId = (id: string) => {
+	const { isSubtask, parentId, subtaskIndex, taskIdForFetch } = useMemo(() => {
-		const parts = id.split('.');
+		const parts = taskId.split('.');
 		if (parts.length === 2) {
 			return {
 				isSubtask: true,
 				parentId: parts[0],
-				subtaskIndex: parseInt(parts[1]) - 1 // Convert to 0-based index
+				subtaskIndex: parseInt(parts[1]) - 1, // Convert to 0-based index
+				taskIdForFetch: parts[0] // Always fetch parent task for subtasks
 			};
 		}
 		return {
 			isSubtask: false,
-			parentId: id,
+			parentId: taskId,
-			subtaskIndex: -1
+			subtaskIndex: -1,
+			taskIdForFetch: taskId
 		};
-	};
+	}, [taskId]);
 
-	// Find the current task
+	// Use React Query to fetch full task details
-	useEffect(() => {
+	const { data: fullTaskData, error: taskDetailsError } =
-		const { isSubtask: isSub, parentId, subtaskIndex } = parseTaskId(taskId);
+		useTaskDetailsQuery(taskIdForFetch);
 
-		if (isSub) {
+	// Find current task from local state for immediate display
+	const { currentTask, parentTask } = useMemo(() => {
+		if (isSubtask) {
 			const parent = tasks.find((t) => t.id === parentId);
 			if (parent && parent.subtasks && parent.subtasks[subtaskIndex]) {
 				const subtask = parent.subtasks[subtaskIndex];
-				setCurrentTask(subtask);
+				return { currentTask: subtask, parentTask: parent };
-				setParentTask(parent);
-			} else {
-				setCurrentTask(null);
-				setParentTask(null);
 			}
 		} else {
 			const task = tasks.find((t) => t.id === taskId);
 			if (task) {
-				setCurrentTask(task);
+				return { currentTask: task, parentTask: null };
-				setParentTask(null);
-			} else {
-				setCurrentTask(null);
-				setParentTask(null);
 			}
 		}
-	}, [taskId, tasks]);
+		return { currentTask: null, parentTask: null };
+	}, [taskId, tasks, isSubtask, parentId, subtaskIndex]);
 
-	// Fetch full task details including details and testStrategy
+	// Merge full task data from React Query with local state
-	useEffect(() => {
+	const mergedCurrentTask = useMemo(() => {
-		const fetchTaskDetails = async () => {
+		if (!currentTask || !fullTaskData) return currentTask;
-			if (!currentTask) return;
 
-			try {
+		if (isSubtask && fullTaskData.subtasks) {
-				// Use the parent task ID for MCP call since get_task returns parent with subtasks
+			// Find the specific subtask in the full data
-				const taskIdToFetch =
+			const subtaskData = fullTaskData.subtasks.find(
-					isSubtask && parentTask ? parentTask.id : currentTask.id;
+				(st: any) =>
-
+					st.id === currentTask.id || st.id === parseInt(currentTask.id as any)
-				const result = await sendMessage({
+			);
-					type: 'mcpRequest',
+			if (subtaskData) {
-					tool: 'get_task',
+				return { ...currentTask, ...subtaskData };
-					params: {
-						id: taskIdToFetch
-					}
-				});
-
-				// Parse the MCP response - it comes as content[0].text JSON string
-				let fullTaskData = null;
-				if (result?.data?.content?.[0]?.text) {
-					try {
-						const parsed = JSON.parse(result.data.content[0].text);
-						fullTaskData = parsed.data;
-					} catch (e) {
-						console.error('Failed to parse MCP response:', e);
-					}
-				} else if (result?.data?.data) {
-					// Fallback if response structure is different
-					fullTaskData = result.data.data;
-				}
-
-				if (fullTaskData) {
-					if (isSubtask && fullTaskData.subtasks) {
-						// Find the specific subtask
-						const subtaskData = fullTaskData.subtasks.find(
-							(st: any) =>
-								st.id === currentTask.id ||
-								st.id === parseInt(currentTask.id as any)
-						);
-						if (subtaskData) {
-							setTaskFileData({
-								details: subtaskData.details || '',
-								testStrategy: subtaskData.testStrategy || ''
-							});
-						}
-					} else {
-						// Use the main task data
-						setTaskFileData({
-							details: fullTaskData.details || '',
-							testStrategy: fullTaskData.testStrategy || ''
-						});
-					}
-				}
-			} catch (error) {
-				console.error('❌ Failed to fetch task details:', error);
-				setTaskFileDataError('Failed to load task details');
 			}
+		} else if (!isSubtask) {
+			// Merge parent task data
+			return { ...currentTask, ...fullTaskData };
+		}
+
+		return currentTask;
+	}, [currentTask, fullTaskData, isSubtask]);
+
+	// Extract task file data
+	const taskFileData: TaskFileData = useMemo(() => {
+		if (!mergedCurrentTask) return {};
+		return {
+			details: mergedCurrentTask.details || '',
+			testStrategy: mergedCurrentTask.testStrategy || ''
 		};
+	}, [mergedCurrentTask]);
 
-		fetchTaskDetails();
+	// Get complexity score
-	}, [currentTask, isSubtask, parentTask, sendMessage]);
+	const complexity = useMemo(() => {
-
+		if (mergedCurrentTask?.complexityScore !== undefined) {
-	// Fetch complexity score
+			return { score: mergedCurrentTask.complexityScore };
-	const fetchComplexity = useCallback(async () => {
-		if (!currentTask) return;
-
-		// First check if the task already has a complexity score
-		if (currentTask.complexityScore !== undefined) {
-			setComplexity({ score: currentTask.complexityScore });
-			return;
 		}
+		return null;
+	}, [mergedCurrentTask]);
 
-		try {
+	// Function to refresh data after AI operations
-			const result = await sendMessage({
-				type: 'getComplexity',
-				data: { taskId: currentTask.id }
-			});
-			if (result) {
-				setComplexity(result);
-			}
-		} catch (error) {
-			console.error('❌ TaskDetailsView: Failed to fetch complexity:', error);
-		}
-	}, [currentTask, sendMessage]);
-
-	useEffect(() => {
-		fetchComplexity();
-	}, [fetchComplexity]);
-
 	const refreshComplexityAfterAI = () => {
-		setTimeout(() => {
+		// React Query will automatically refetch when mutations invalidate the query
-			fetchComplexity();
+		// No need for manual refresh
-		}, 2000);
 	};
 
 	return {
-		currentTask,
+		currentTask: mergedCurrentTask,
 		parentTask,
 		isSubtask,
 		taskFileData,
-		taskFileDataError,
+		taskFileDataError: taskDetailsError ? 'Failed to load task details' : null,
 		complexity,
 		refreshComplexityAfterAI
 	};

apps/extension/src/components/ui/shadcn-io/kanban/index.tsx

@@ -141,6 +141,7 @@ export type KanbanProviderProps = {
 	children: ReactNode;
 	onDragEnd: (event: DragEndEvent) => void;
 	onDragStart?: (event: DragEndEvent) => void;
+	onDragCancel?: () => void;
 	className?: string;
 	dragOverlay?: ReactNode;
 };
@@ -149,6 +150,7 @@ export const KanbanProvider = ({
 	children,
 	onDragEnd,
 	onDragStart,
+	onDragCancel,
 	className,
 	dragOverlay
 }: KanbanProviderProps) => {
@@ -170,6 +172,7 @@ export const KanbanProvider = ({
 			collisionDetection={rectIntersection}
 			onDragEnd={onDragEnd}
 			onDragStart={onDragStart}
+			onDragCancel={onDragCancel}
 		>
 			<div
 				className={cn(

apps/extension/src/services/webview-manager.ts

@@ -174,9 +174,66 @@ export class WebviewManager {
 					break;
 
 				case 'updateTask':
-					// Handle task content updates
+					// Handle task content updates with MCP
-					await this.repository.updateContent(data.taskId, data.updates);
+					if (this.mcpClient) {
-					response = { success: true };
+						try {
+							const { taskId, updates, options = {} } = data;
+
+							// Use the update_task MCP tool
+							const result = await this.mcpClient.callTool('update_task', {
+								id: taskId,
+								prompt: updates.description || '',
+								append: options.append || false,
+								research: options.research || false,
+								projectRoot: vscode.workspace.workspaceFolders?.[0]?.uri.fsPath
+							});
+
+							// Refresh tasks after update
+							await this.repository.refresh();
+							const updatedTasks = await this.repository.getAll();
+							this.broadcast('tasksUpdated', {
+								tasks: updatedTasks,
+								source: 'task-update'
+							});
+							response = { success: true };
+						} catch (error) {
+							this.logger.error('Failed to update task via MCP:', error);
+							throw error;
+						}
+					} else {
+						throw new Error('MCP client not initialized');
+					}
+					break;
+
+				case 'updateSubtask':
+					// Handle subtask content updates with MCP
+					if (this.mcpClient) {
+						try {
+							const { taskId, prompt, options = {} } = data;
+
+							// Use the update_subtask MCP tool
+							const result = await this.mcpClient.callTool('update_subtask', {
+								id: taskId,
+								prompt: prompt,
+								research: options.research || false,
+								projectRoot: vscode.workspace.workspaceFolders?.[0]?.uri.fsPath
+							});
+
+							// Refresh tasks after update
+							await this.repository.refresh();
+							const updatedTasks = await this.repository.getAll();
+							this.broadcast('tasksUpdated', {
+								tasks: updatedTasks,
+								source: 'task-update'
+							});
+							response = { success: true };
+						} catch (error) {
+							this.logger.error('Failed to update subtask via MCP:', error);
+							throw error;
+						}
+					} else {
+						throw new Error('MCP client not initialized');
+					}
 					break;
 
 				case 'getComplexity':

apps/extension/src/webview/App.tsx

@@ -4,6 +4,7 @@
 
 import React, { useReducer, useState, useEffect, useRef } from 'react';
 import { VSCodeContext } from './contexts/VSCodeContext';
+import { QueryProvider } from './providers/QueryProvider';
 import { TaskMasterKanban } from './components/TaskMasterKanban';
 import TaskDetailsView from '@/components/TaskDetailsView';
 import { ConfigView } from '@/components/ConfigView';
@@ -46,21 +47,7 @@ export const App: React.FC = () => {
 		// Notify extension that webview is ready
 		vscode.postMessage({ type: 'ready' });
 
-		// Request initial tasks data
+		// React Query will handle task fetching, so we only need to load tags data
-		sendMessage({ type: 'getTasks' })
-			.then((tasksData) => {
-				console.log('📋 Initial tasks loaded:', tasksData);
-				dispatch({ type: 'SET_TASKS', payload: tasksData });
-			})
-			.catch((error) => {
-				console.error('❌ Failed to load initial tasks:', error);
-				dispatch({
-					type: 'SET_ERROR',
-					payload: `Failed to load tasks: ${error.message}`
-				});
-			});
-
-		// Request tags data
 		sendMessage({ type: 'getTags' })
 			.then((tagsData) => {
 				if (tagsData?.tags && tagsData?.currentTag) {
@@ -93,58 +80,64 @@ export const App: React.FC = () => {
 	};
 
 	return (
-		<VSCodeContext.Provider value={contextValue}>
+		<QueryProvider>
-			<ErrorBoundary
+			<VSCodeContext.Provider value={contextValue}>
-				onError={(error) => {
+				<ErrorBoundary
-					// Handle React errors and show appropriate toast
+					onError={(error) => {
-					dispatch({
+						// Handle React errors and show appropriate toast
-						type: 'ADD_TOAST',
+						dispatch({
-						payload: createToast(
+							type: 'ADD_TOAST',
-							'error',
+							payload: createToast(
-							'Component Error',
+								'error',
-							`A React component crashed: ${error.message}`,
+								'Component Error',
-							10000
+								`A React component crashed: ${error.message}`,
-						)
+								10000
-					});
+							)
-				}}
+						});
-			>
+					}}
-				{/* Conditional rendering for different views */}
+				>
-				{(() => {
+					{/* Conditional rendering for different views */}
-					console.log(
+					{(() => {
-						'🎯 App render - currentView:',
+						console.log(
-						state.currentView,
+							'🎯 App render - currentView:',
-						'selectedTaskId:',
+							state.currentView,
-						state.selectedTaskId
+							'selectedTaskId:',
-					);
+							state.selectedTaskId
-
-					if (state.currentView === 'config') {
-						return (
-							<ConfigView
-								sendMessage={sendMessage}
-								onNavigateBack={() => dispatch({ type: 'NAVIGATE_TO_KANBAN' })}
-							/>
 						);
-					}
 
-					if (state.currentView === 'task-details' && state.selectedTaskId) {
+						if (state.currentView === 'config') {
-						return (
+							return (
-							<TaskDetailsView
+								<ConfigView
-								taskId={state.selectedTaskId}
+									sendMessage={sendMessage}
-								onNavigateBack={() => dispatch({ type: 'NAVIGATE_TO_KANBAN' })}
+									onNavigateBack={() =>
-								onNavigateToTask={(taskId: string) =>
+										dispatch({ type: 'NAVIGATE_TO_KANBAN' })
-									dispatch({ type: 'NAVIGATE_TO_TASK', payload: taskId })
+									}
-								}
+								/>
-							/>
+							);
-						);
+						}
-					}
 
-					return <TaskMasterKanban />;
+						if (state.currentView === 'task-details' && state.selectedTaskId) {
-				})()}
+							return (
-				<ToastContainer
+								<TaskDetailsView
-					notifications={state.toastNotifications}
+									taskId={state.selectedTaskId}
-					onDismiss={(id) => dispatch({ type: 'REMOVE_TOAST', payload: id })}
+									onNavigateBack={() =>
-				/>
+										dispatch({ type: 'NAVIGATE_TO_KANBAN' })
-			</ErrorBoundary>
+									}
-		</VSCodeContext.Provider>
+									onNavigateToTask={(taskId: string) =>
+										dispatch({ type: 'NAVIGATE_TO_TASK', payload: taskId })
+									}
+								/>
+							);
+						}
+
+						return <TaskMasterKanban />;
+					})()}
+					<ToastContainer
+						notifications={state.toastNotifications}
+						onDismiss={(id) => dispatch({ type: 'REMOVE_TOAST', payload: id })}
+					/>
+				</ErrorBoundary>
+			</VSCodeContext.Provider>
+		</QueryProvider>
 	);
 };

apps/extension/src/webview/components/TaskCard.tsx

@@ -26,12 +26,9 @@ export const TaskCard: React.FC<TaskCardProps> = ({
 	return (
 		<KanbanCard
 			id={task.id}
-			feature={{
+			name={task.title}
-				id: task.id,
+			index={0} // Index is not used in our implementation
-				title: task.title,
+			parent={task.status}
-				column: task.status
-			}}
-			dragging={dragging}
 			className="cursor-pointer p-3 transition-shadow hover:shadow-md bg-vscode-editor-background border-vscode-border group"
 			onClick={handleCardClick}
 		>

apps/extension/src/webview/components/TaskMasterKanban.tsx

@@ -2,7 +2,7 @@
  * Main Kanban Board Component
  */
 
-import React, { useState, useCallback } from 'react';
+import React, { useState, useCallback, useEffect } from 'react';
 import {
 	type DragEndEvent,
 	KanbanBoard,
@@ -16,15 +16,19 @@ import { PollingStatus } from './PollingStatus';
 import { TagDropdown } from './TagDropdown';
 import { EmptyState } from './EmptyState';
 import { useVSCodeContext } from '../contexts/VSCodeContext';
+import {
+	useTasks,
+	useUpdateTaskStatus,
+	useUpdateTask
+} from '../hooks/useTaskQueries';
 import { kanbanStatuses, HEADER_HEIGHT } from '../constants';
 import type { TaskMasterTask, TaskUpdates } from '../types';
 
 export const TaskMasterKanban: React.FC = () => {
 	const { state, dispatch, sendMessage, availableHeight } = useVSCodeContext();
 	const {
-		tasks,
+		loading: legacyLoading,
-		loading,
+		error: legacyError,
-		error,
 		editingTask,
 		polling,
 		currentTag,
@@ -32,6 +36,23 @@ export const TaskMasterKanban: React.FC = () => {
 	} = state;
 	const [activeTask, setActiveTask] = useState<TaskMasterTask | null>(null);
 
+	// Use React Query to fetch tasks
+	const {
+		data: serverTasks = [],
+		isLoading,
+		error
+	} = useTasks({ tag: currentTag });
+	const updateTaskStatus = useUpdateTaskStatus();
+	const updateTask = useUpdateTask();
+
+	// Temporary state only for active drag operations
+	const [tempReorderedTasks, setTempReorderedTasks] = useState<
+		TaskMasterTask[] | null
+	>(null);
+
+	// Use temp tasks only if actively set, otherwise use server tasks
+	const tasks = tempReorderedTasks ?? serverTasks;
+
 	// Calculate header height for proper kanban board sizing
 	const kanbanHeight = availableHeight - HEADER_HEIGHT;
 
@@ -60,21 +81,11 @@ export const TaskMasterKanban: React.FC = () => {
 	const handleUpdateTask = async (taskId: string, updates: TaskUpdates) => {
 		console.log(`🔄 Updating task ${taskId} content:`, updates);
 
-		// Optimistic update
-		dispatch({
-			type: 'UPDATE_TASK_CONTENT',
-			payload: { taskId, updates }
-		});
-
 		try {
-			// Send update to extension
+			await updateTask.mutateAsync({
-			await sendMessage({
+				taskId,
-				type: 'updateTask',
+				updates,
-				data: {
+				options: { append: false, research: false }
-					taskId,
-					updates,
-					options: { append: false, research: false }
-				}
 			});
 
 			console.log(`✅ Task ${taskId} content updated successfully`);
@@ -86,26 +97,6 @@ export const TaskMasterKanban: React.FC = () => {
 			});
 		} catch (error) {
 			console.error(`❌ Failed to update task ${taskId}:`, error);
-
-			// Revert the optimistic update on error
-			const originalTask = editingTask?.editData;
-			if (originalTask) {
-				dispatch({
-					type: 'UPDATE_TASK_CONTENT',
-					payload: {
-						taskId,
-						updates: {
-							title: originalTask.title,
-							description: originalTask.description,
-							details: originalTask.details,
-							priority: originalTask.priority,
-							testStrategy: originalTask.testStrategy,
-							dependencies: originalTask.dependencies
-						}
-					}
-				});
-			}
-
 			dispatch({
 				type: 'SET_ERROR',
 				payload: `Failed to update task: ${error}`
@@ -115,57 +106,71 @@ export const TaskMasterKanban: React.FC = () => {
 
 	// Handle drag start
 	const handleDragStart = useCallback(
-		(taskId: string) => {
+		(event: DragEndEvent) => {
+			const taskId = event.active.id as string;
 			const task = tasks.find((t) => t.id === taskId);
 			if (task) {
 				setActiveTask(task);
-				dispatch({ type: 'SET_USER_INTERACTING', payload: true });
 			}
 		},
-		[tasks, dispatch]
+		[tasks]
 	);
 
+	// Handle drag cancel
+	const handleDragCancel = useCallback(() => {
+		setActiveTask(null);
+		// Clear any temporary state
+		setTempReorderedTasks(null);
+	}, []);
+
 	// Handle drag end
 	const handleDragEnd = useCallback(
 		async (event: DragEndEvent) => {
-			dispatch({ type: 'SET_USER_INTERACTING', payload: false });
+			const { active, over } = event;
+
+			// Reset active task
 			setActiveTask(null);
 
-			const { active, over } = event;
+			if (!over || active.id === over.id) {
-			if (!over || active.id === over.id) return;
+				// Clear any temp state if drag was cancelled
+				setTempReorderedTasks(null);
+				return;
+			}
 
 			const taskId = active.id as string;
 			const newStatus = over.id as TaskMasterTask['status'];
 
 			// Find the task
 			const task = tasks.find((t) => t.id === taskId);
-			if (!task || task.status === newStatus) return;
+			if (!task || task.status === newStatus) {
+				// Clear temp state if no change needed
+				setTempReorderedTasks(null);
+				return;
+			}
 
-			// Optimistic update
+			// Create the optimistically reordered tasks
-			dispatch({
+			const reorderedTasks = tasks.map((t) =>
-				type: 'UPDATE_TASK_STATUS',
+				t.id === taskId ? { ...t, status: newStatus } : t
-				payload: { taskId, newStatus }
+			);
-			});
+
+			// Set temporary state to show immediate visual feedback
+			setTempReorderedTasks(reorderedTasks);
 
 			try {
-				// Send update to extension
+				// Update on server - React Query will handle optimistic updates
-				await sendMessage({
+				await updateTaskStatus.mutateAsync({ taskId, newStatus });
-					type: 'updateTaskStatus',
+				// Clear temp state after mutation starts successfully
-					data: { taskId, newStatus }
+				setTempReorderedTasks(null);
-				});
 			} catch (error) {
-				// Revert on error
+				// On error, clear temp state - React Query will revert optimistic update
-				dispatch({
+				setTempReorderedTasks(null);
-					type: 'UPDATE_TASK_STATUS',
-					payload: { taskId, newStatus: task.status }
-				});
 				dispatch({
 					type: 'SET_ERROR',
 					payload: `Failed to update task status: ${error}`
 				});
 			}
 		},
-		[tasks, sendMessage, dispatch]
+		[tasks, updateTaskStatus, dispatch]
 	);
 
 	// Handle retry connection
@@ -178,22 +183,22 @@ export const TaskMasterKanban: React.FC = () => {
 		async (tagName: string) => {
 			console.log('Switching to tag:', tagName);
 			await sendMessage({ type: 'switchTag', data: { tagName } });
-			// After switching tags, fetch the new tasks for that specific tag
+			dispatch({
-			const tasksData = await sendMessage({
+				type: 'SET_TAG_DATA',
-				type: 'getTasks',
+				payload: { currentTag: tagName, availableTags }
-				data: { tag: tagName }
 			});
-			console.log('Received new tasks for tag', tagName, ':', {
-				tasksData,
-				isArray: Array.isArray(tasksData),
-				count: Array.isArray(tasksData) ? tasksData.length : 'not an array'
-			});
-			dispatch({ type: 'SET_TASKS', payload: tasksData });
-			console.log('Dispatched SET_TASKS');
 		},
-		[sendMessage, dispatch]
+		[sendMessage, dispatch, availableTags]
 	);
 
+	// Use React Query loading state
+	const loading = isLoading || legacyLoading;
+	const displayError = error
+		? error instanceof Error
+			? error.message
+			: String(error)
+		: legacyError;
+
 	if (loading) {
 		return (
 			<div
@@ -208,10 +213,10 @@ export const TaskMasterKanban: React.FC = () => {
 		);
 	}
 
-	if (error) {
+	if (displayError) {
 		return (
 			<div className="bg-red-500/10 border border-red-500/30 rounded-lg p-4 m-4">
-				<p className="text-red-400 text-sm">Error: {error}</p>
+				<p className="text-red-400 text-sm">Error: {displayError}</p>
 				<button
 					onClick={() => dispatch({ type: 'CLEAR_ERROR' })}
 					className="mt-2 text-sm text-red-400 hover:text-red-300 underline"
@@ -228,7 +233,7 @@ export const TaskMasterKanban: React.FC = () => {
 				<div className="flex-shrink-0 p-4 bg-vscode-sidebar-background border-b border-vscode-border">
 					<div className="flex items-center justify-between">
 						<h1 className="text-lg font-semibold text-vscode-foreground">
-							Task Master Kanban
+							TaskMaster Kanban
 						</h1>
 						<div className="flex items-center gap-4">
 							<TagDropdown
@@ -250,7 +255,7 @@ export const TaskMasterKanban: React.FC = () => {
 							<button
 								onClick={() => dispatch({ type: 'NAVIGATE_TO_CONFIG' })}
 								className="p-1.5 rounded hover:bg-vscode-button-hoverBackground transition-colors"
-								title="Task Master Configuration"
+								title="TaskMaster Configuration"
 							>
 								<svg
 									className="w-4 h-4 text-vscode-foreground/70"
@@ -286,6 +291,7 @@ export const TaskMasterKanban: React.FC = () => {
 						<KanbanProvider
 							onDragStart={handleDragStart}
 							onDragEnd={handleDragEnd}
+							onDragCancel={handleDragCancel}
 							className="kanban-container w-full h-full overflow-x-auto overflow-y-hidden"
 							dragOverlay={
 								activeTask ? <TaskCard task={activeTask} dragging /> : null
@@ -300,7 +306,6 @@ export const TaskMasterKanban: React.FC = () => {
 										<KanbanBoard
 											key={status.id}
 											id={status.id}
-											title={status.name}
 											className={`
 												w-80 flex flex-col
 												border border-vscode-border/30
@@ -309,7 +314,7 @@ export const TaskMasterKanban: React.FC = () => {
 											`}
 										>
 											<KanbanHeader
-												name={`${status.name} (${statusTasks.length})`}
+												name={`${status.title} (${statusTasks.length})`}
 												color={status.color}
 												className="px-3 py-3 text-sm font-medium flex-shrink-0 border-b border-vscode-border/30"
 											/>
@@ -325,7 +330,7 @@ export const TaskMasterKanban: React.FC = () => {
 													maxHeight: `${kanbanHeight - 80}px`
 												}}
 											>
-												<KanbanCards column={status.id}>
+												<KanbanCards>
 													{statusTasks.map((task) => (
 														<TaskCard
 															key={task.id}

apps/extension/src/webview/constants/index.ts

@@ -4,13 +4,38 @@
 
 import type { Status } from '@/components/ui/shadcn-io/kanban';
 
-export const kanbanStatuses: Status[] = [
+export const kanbanStatuses = [
-	{ id: 'pending', name: 'Pending', color: 'yellow' },
+	{
-	{ id: 'in-progress', name: 'In Progress', color: 'blue' },
+		id: 'pending',
-	{ id: 'review', name: 'Review', color: 'purple' },
+		title: 'Pending',
-	{ id: 'done', name: 'Done', color: 'green' },
+		color: 'yellow',
-	{ id: 'deferred', name: 'Deferred', color: 'gray' }
+		className: 'text-yellow-600 border-yellow-600/20'
-];
+	},
+	{
+		id: 'in-progress',
+		title: 'In Progress',
+		color: 'blue',
+		className: 'text-blue-600 border-blue-600/20'
+	},
+	{
+		id: 'review',
+		title: 'Review',
+		color: 'purple',
+		className: 'text-purple-600 border-purple-600/20'
+	},
+	{
+		id: 'done',
+		title: 'Done',
+		color: 'green',
+		className: 'text-green-600 border-green-600/20'
+	},
+	{
+		id: 'deferred',
+		title: 'Deferred',
+		color: 'gray',
+		className: 'text-gray-600 border-gray-600/20'
+	}
+] as const;
 
 export const CACHE_DURATION = 30000; // 30 seconds
 export const REQUEST_TIMEOUT = 30000; // 30 seconds

apps/extension/src/webview/hooks/useTaskQueries.ts

@@ -0,0 +1,189 @@
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import { useVSCodeContext } from '../contexts/VSCodeContext';
+import type { TaskMasterTask, TaskUpdates } from '../types';
+
+// Query keys factory
+export const taskKeys = {
+	all: ['tasks'] as const,
+	lists: () => [...taskKeys.all, 'list'] as const,
+	list: (filters: { tag?: string; status?: string }) =>
+		[...taskKeys.lists(), filters] as const,
+	details: () => [...taskKeys.all, 'detail'] as const,
+	detail: (id: string) => [...taskKeys.details(), id] as const
+};
+
+// Hook to fetch all tasks
+export function useTasks(options?: { tag?: string; status?: string }) {
+	const { sendMessage } = useVSCodeContext();
+
+	return useQuery({
+		queryKey: taskKeys.list(options || {}),
+		queryFn: async () => {
+			const response = await sendMessage({
+				type: 'getTasks',
+				data: {
+					tag: options?.tag,
+					withSubtasks: true
+				}
+			});
+			return response as TaskMasterTask[];
+		}
+	});
+}
+
+// Hook to fetch a single task with full details
+export function useTaskDetails(taskId: string) {
+	const { sendMessage } = useVSCodeContext();
+
+	return useQuery({
+		queryKey: taskKeys.detail(taskId),
+		queryFn: async () => {
+			const response = await sendMessage({
+				type: 'mcpRequest',
+				tool: 'get_task',
+				params: {
+					id: taskId
+				}
+			});
+
+			// Parse the MCP response
+			let fullTaskData = null;
+			if (response?.data?.content?.[0]?.text) {
+				try {
+					const parsed = JSON.parse(response.data.content[0].text);
+					fullTaskData = parsed.data;
+				} catch (e) {
+					console.error('Failed to parse MCP response:', e);
+				}
+			} else if (response?.data?.data) {
+				fullTaskData = response.data.data;
+			}
+
+			return fullTaskData as TaskMasterTask;
+		},
+		enabled: !!taskId
+	});
+}
+
+// Hook to update task status
+export function useUpdateTaskStatus() {
+	const { sendMessage } = useVSCodeContext();
+	const queryClient = useQueryClient();
+
+	return useMutation({
+		mutationFn: async ({
+			taskId,
+			newStatus
+		}: {
+			taskId: string;
+			newStatus: TaskMasterTask['status'];
+		}) => {
+			const response = await sendMessage({
+				type: 'updateTaskStatus',
+				data: { taskId, newStatus }
+			});
+			return { taskId, newStatus, response };
+		},
+		// Optimistic update to prevent snap-back
+		onMutate: async ({ taskId, newStatus }) => {
+			// Cancel any outgoing refetches
+			await queryClient.cancelQueries({ queryKey: taskKeys.all });
+
+			// Snapshot the previous value
+			const previousTasks = queryClient.getQueriesData({
+				queryKey: taskKeys.all
+			});
+
+			// Optimistically update all task queries
+			queryClient.setQueriesData({ queryKey: taskKeys.all }, (old: any) => {
+				if (!old) return old;
+
+				// Handle both array and object responses
+				if (Array.isArray(old)) {
+					return old.map((task: TaskMasterTask) =>
+						task.id === taskId ? { ...task, status: newStatus } : task
+					);
+				}
+
+				return old;
+			});
+
+			// Return a context object with the snapshot
+			return { previousTasks };
+		},
+		// If the mutation fails, roll back to the previous value
+		onError: (err, variables, context) => {
+			if (context?.previousTasks) {
+				context.previousTasks.forEach(([queryKey, data]) => {
+					queryClient.setQueryData(queryKey, data);
+				});
+			}
+		},
+		// Always refetch after error or success to ensure consistency
+		onSettled: () => {
+			queryClient.invalidateQueries({ queryKey: taskKeys.all });
+		}
+	});
+}
+
+// Hook to update task content
+export function useUpdateTask() {
+	const { sendMessage } = useVSCodeContext();
+	const queryClient = useQueryClient();
+
+	return useMutation({
+		mutationFn: async ({
+			taskId,
+			updates,
+			options = {}
+		}: {
+			taskId: string;
+			updates: TaskUpdates | { description: string };
+			options?: { append?: boolean; research?: boolean };
+		}) => {
+			await sendMessage({
+				type: 'updateTask',
+				data: { taskId, updates, options }
+			});
+		},
+		onSuccess: (_, variables) => {
+			// Invalidate the specific task and all lists
+			queryClient.invalidateQueries({
+				queryKey: taskKeys.detail(variables.taskId)
+			});
+			queryClient.invalidateQueries({ queryKey: taskKeys.lists() });
+		}
+	});
+}
+
+// Hook to update subtask
+export function useUpdateSubtask() {
+	const { sendMessage } = useVSCodeContext();
+	const queryClient = useQueryClient();
+
+	return useMutation({
+		mutationFn: async ({
+			taskId,
+			prompt,
+			options = {}
+		}: {
+			taskId: string;
+			prompt: string;
+			options?: { research?: boolean };
+		}) => {
+			await sendMessage({
+				type: 'updateSubtask',
+				data: { taskId, prompt, options }
+			});
+		},
+		onSuccess: (_, variables) => {
+			// Extract parent task ID from subtask ID (e.g., "1.2" -> "1")
+			const parentTaskId = variables.taskId.split('.')[0];
+			// Invalidate the parent task details and all lists
+			queryClient.invalidateQueries({
+				queryKey: taskKeys.detail(parentTaskId)
+			});
+			queryClient.invalidateQueries({ queryKey: taskKeys.lists() });
+		}
+	});
+}

apps/extension/src/webview/providers/QueryProvider.tsx

@@ -0,0 +1,34 @@
+import React from 'react';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+
+// Create a stable query client
+const queryClient = new QueryClient({
+	defaultOptions: {
+		queries: {
+			// Don't refetch on window focus by default
+			refetchOnWindowFocus: false,
+			// Keep data fresh for 30 seconds
+			staleTime: 30 * 1000,
+			// Cache data for 5 minutes
+			gcTime: 5 * 60 * 1000,
+			// Retry failed requests 3 times
+			retry: 3,
+			// Retry delay exponentially backs off
+			retryDelay: (attemptIndex) => Math.min(1000 * 2 ** attemptIndex, 30000)
+		},
+		mutations: {
+			// Don't retry mutations by default
+			retry: false
+		}
+	}
+});
+
+interface QueryProviderProps {
+	children: React.ReactNode;
+}
+
+export const QueryProvider: React.FC<QueryProviderProps> = ({ children }) => {
+	return (
+		<QueryClientProvider client={queryClient}>{children}</QueryClientProvider>
+	);
+};

package-lock.json

@@ -86,10 +86,11 @@
 			}
 		},
 		"apps/extension": {
-			"name": "taskr",
 			"version": "1.1.0",
+			"dependencies": {
+				"@tanstack/react-query": "^5.83.0"
+			},
 			"devDependencies": {
-				"@biomejs/biome": "^2.1.2",
 				"@dnd-kit/core": "^6.3.1",
 				"@dnd-kit/modifiers": "^9.0.0",
 				"@modelcontextprotocol/sdk": "1.13.3",
@@ -126,67 +127,6 @@
 				"vscode": "^1.93.0"
 			}
 		},
-		"apps/extension/node_modules/@biomejs/biome": {
-			"version": "2.1.2",
-			"resolved": "https://registry.npmjs.org/@biomejs/biome/-/biome-2.1.2.tgz",
-			"integrity": "sha512-yq8ZZuKuBVDgAS76LWCfFKHSYIAgqkxVB3mGVVpOe2vSkUTs7xG46zXZeNPRNVjiJuw0SZ3+J2rXiYx0RUpfGg==",
-			"dev": true,
-			"license": "MIT OR Apache-2.0",
-			"bin": {
-				"biome": "bin/biome"
-			},
-			"engines": {
-				"node": ">=14.21.3"
-			},
-			"funding": {
-				"type": "opencollective",
-				"url": "https://opencollective.com/biome"
-			},
-			"optionalDependencies": {
-				"@biomejs/cli-darwin-arm64": "2.1.2",
-				"@biomejs/cli-darwin-x64": "2.1.2",
-				"@biomejs/cli-linux-arm64": "2.1.2",
-				"@biomejs/cli-linux-arm64-musl": "2.1.2",
-				"@biomejs/cli-linux-x64": "2.1.2",
-				"@biomejs/cli-linux-x64-musl": "2.1.2",
-				"@biomejs/cli-win32-arm64": "2.1.2",
-				"@biomejs/cli-win32-x64": "2.1.2"
-			}
-		},
-		"apps/extension/node_modules/@biomejs/cli-darwin-arm64": {
-			"version": "2.1.2",
-			"resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-arm64/-/cli-darwin-arm64-2.1.2.tgz",
-			"integrity": "sha512-leFAks64PEIjc7MY/cLjE8u5OcfBKkcDB0szxsWUB4aDfemBep1WVKt0qrEyqZBOW8LPHzrFMyDl3FhuuA0E7g==",
-			"cpu": [
-				"arm64"
-			],
-			"dev": true,
-			"license": "MIT OR Apache-2.0",
-			"optional": true,
-			"os": [
-				"darwin"
-			],
-			"engines": {
-				"node": ">=14.21.3"
-			}
-		},
-		"apps/extension/node_modules/@biomejs/cli-linux-x64": {
-			"version": "2.1.2",
-			"resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64/-/cli-linux-x64-2.1.2.tgz",
-			"integrity": "sha512-Km/UYeVowygTjpX6sGBzlizjakLoMQkxWbruVZSNE6osuSI63i4uCeIL+6q2AJlD3dxoiBJX70dn1enjQnQqwA==",
-			"cpu": [
-				"x64"
-			],
-			"dev": true,
-			"license": "MIT OR Apache-2.0",
-			"optional": true,
-			"os": [
-				"linux"
-			],
-			"engines": {
-				"node": ">=14.21.3"
-			}
-		},
 		"apps/extension/node_modules/@dnd-kit/core": {
 			"version": "6.3.1",
 			"resolved": "https://registry.npmjs.org/@dnd-kit/core/-/core-6.3.1.tgz",
@@ -2986,57 +2926,6 @@
 				"node": ">=14.21.3"
 			}
 		},
-		"node_modules/@biomejs/cli-darwin-x64": {
-			"version": "2.1.2",
-			"resolved": "https://registry.npmjs.org/@biomejs/cli-darwin-x64/-/cli-darwin-x64-2.1.2.tgz",
-			"integrity": "sha512-Nmmv7wRX5Nj7lGmz0FjnWdflJg4zii8Ivruas6PBKzw5SJX/q+Zh2RfnO+bBnuKLXpj8kiI2x2X12otpH6a32A==",
-			"cpu": [
-				"x64"
-			],
-			"dev": true,
-			"license": "MIT OR Apache-2.0",
-			"optional": true,
-			"os": [
-				"darwin"
-			],
-			"engines": {
-				"node": ">=14.21.3"
-			}
-		},
-		"node_modules/@biomejs/cli-linux-arm64": {
-			"version": "2.1.2",
-			"resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64/-/cli-linux-arm64-2.1.2.tgz",
-			"integrity": "sha512-NWNy2Diocav61HZiv2enTQykbPP/KrA/baS7JsLSojC7Xxh2nl9IczuvE5UID7+ksRy2e7yH7klm/WkA72G1dw==",
-			"cpu": [
-				"arm64"
-			],
-			"dev": true,
-			"license": "MIT OR Apache-2.0",
-			"optional": true,
-			"os": [
-				"linux"
-			],
-			"engines": {
-				"node": ">=14.21.3"
-			}
-		},
-		"node_modules/@biomejs/cli-linux-arm64-musl": {
-			"version": "2.1.2",
-			"resolved": "https://registry.npmjs.org/@biomejs/cli-linux-arm64-musl/-/cli-linux-arm64-musl-2.1.2.tgz",
-			"integrity": "sha512-qgHvafhjH7Oca114FdOScmIKf1DlXT1LqbOrrbR30kQDLFPEOpBG0uzx6MhmsrmhGiCFCr2obDamu+czk+X0HQ==",
-			"cpu": [
-				"arm64"
-			],
-			"dev": true,
-			"license": "MIT OR Apache-2.0",
-			"optional": true,
-			"os": [
-				"linux"
-			],
-			"engines": {
-				"node": ">=14.21.3"
-			}
-		},
 		"node_modules/@biomejs/cli-linux-x64": {
 			"version": "1.9.4",
 			"resolved": "https://registry.npmjs.org/@biomejs/cli-linux-x64/-/cli-linux-x64-1.9.4.tgz",
@@ -3053,57 +2942,6 @@
 				"node": ">=14.21.3"
 			}
 		},
-		"node_modules/@biomejs/cli-linux-x64-musl": {
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 				"tailwindcss": "4.1.11"
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+			"license": "MIT",
+			"funding": {
+				"type": "github",
+				"url": "https://github.com/sponsors/tannerlinsley"
+			}
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+		"node_modules/@tanstack/react-query": {
+			"version": "5.83.0",
+			"resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.83.0.tgz",
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+			"license": "MIT",
+			"dependencies": {
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+			"funding": {
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+				"url": "https://github.com/sponsors/tannerlinsley"
+			},
+			"peerDependencies": {
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+			}
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@@ -10866,6 +10730,10 @@
 			"dev": true,
 			"license": "MIT"
 		},
+		"node_modules/extension": {
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