feat(move-tasks): Implement move command for tasks and subtasks

Adds a new CLI command and MCP tool to reorganize tasks and subtasks within the hierarchy. Features include:
- Moving tasks between different positions in the task list
- Converting tasks to subtasks and vice versa
- Moving subtasks between parents
- Moving multiple tasks at once with comma-separated IDs
- Creating placeholder tasks when moving to new IDs
- Validation to prevent accidental data loss

This is particularly useful for resolving merge conflicts when multiple team members create tasks on different branches.

mcp-server/src/core/direct-functions/move-task.js

@@ -0,0 +1,93 @@
+/**
+ * Direct function wrapper for moveTask
+ */
+
+import { moveTask } from '../../../../scripts/modules/task-manager.js';
+import { findTasksJsonPath } from '../utils/path-utils.js';
+import {
+	enableSilentMode,
+	disableSilentMode
+} from '../../../../scripts/modules/utils.js';
+
+/**
+ * Move a task or subtask to a new position
+ * @param {Object} args - Function arguments
+ * @param {string} args.tasksJsonPath - Explicit path to the tasks.json file
+ * @param {string} args.sourceId - ID of the task/subtask to move (e.g., '5' or '5.2')
+ * @param {string} args.destinationId - ID of the destination (e.g., '7' or '7.3')
+ * @param {string} args.file - Alternative path to the tasks.json file
+ * @param {string} args.projectRoot - Project root directory
+ * @param {Object} log - Logger object
+ * @returns {Promise<{success: boolean, data?: Object, error?: Object}>}
+ */
+export async function moveTaskDirect(args, log, context = {}) {
+	const { session } = context;
+	
+	// Validate required parameters
+	if (!args.sourceId) {
+		return {
+			success: false,
+			error: {
+				message: 'Source ID is required',
+				code: 'MISSING_SOURCE_ID'
+			}
+		};
+	}
+
+	if (!args.destinationId) {
+		return {
+			success: false,
+			error: {
+				message: 'Destination ID is required',
+				code: 'MISSING_DESTINATION_ID'
+			}
+		};
+	}
+
+	try {
+		// Find tasks.json path if not provided
+		let tasksPath = args.tasksJsonPath || args.file;
+		if (!tasksPath) {
+			if (!args.projectRoot) {
+				return {
+					success: false,
+					error: {
+						message: 'Project root is required if tasksJsonPath is not provided',
+						code: 'MISSING_PROJECT_ROOT'
+					}
+				};
+			}
+			tasksPath = findTasksJsonPath(args, log);
+		}
+
+		// Enable silent mode to prevent console output during MCP operation
+		enableSilentMode();
+
+		// Call the core moveTask function, always generate files
+		const result = await moveTask(tasksPath, args.sourceId, args.destinationId, true);
+
+		// Restore console output
+		disableSilentMode();
+
+		return {
+			success: true,
+			data: {
+				movedTask: result.movedTask,
+				message: `Successfully moved task/subtask ${args.sourceId} to ${args.destinationId}`
+			}
+		};
+	} catch (error) {
+		// Restore console output in case of error
+		disableSilentMode();
+
+		log.error(`Failed to move task: ${error.message}`);
+		
+		return {
+			success: false,
+			error: {
+				message: error.message,
+				code: 'MOVE_TASK_ERROR'
+			}
+		};
+	}
+} 

mcp-server/src/core/task-master-core.js

@@ -30,6 +30,7 @@ import { addDependencyDirect } from './direct-functions/add-dependency.js';
 import { removeTaskDirect } from './direct-functions/remove-task.js';
 import { initializeProjectDirect } from './direct-functions/initialize-project.js';
 import { modelsDirect } from './direct-functions/models.js';
+import { moveTaskDirect } from './direct-functions/move-task.js';
 
 // Re-export utility functions
 export { findTasksJsonPath } from './utils/path-utils.js';
@@ -60,7 +61,8 @@ export const directFunctions = new Map([
 	['addDependencyDirect', addDependencyDirect],
 	['removeTaskDirect', removeTaskDirect],
 	['initializeProjectDirect', initializeProjectDirect],
-	['modelsDirect', modelsDirect]
+	['modelsDirect', modelsDirect],
+	['moveTaskDirect', moveTaskDirect]
 ]);
 
 // Re-export all direct function implementations
@@ -89,5 +91,6 @@ export {
 	addDependencyDirect,
 	removeTaskDirect,
 	initializeProjectDirect,
-	modelsDirect
+	modelsDirect,
+	moveTaskDirect
 };

mcp-server/src/tools/index.js

@@ -28,6 +28,7 @@ import { registerAddDependencyTool } from './add-dependency.js';
 import { registerRemoveTaskTool } from './remove-task.js';
 import { registerInitializeProjectTool } from './initialize-project.js';
 import { registerModelsTool } from './models.js';
+import { registerMoveTaskTool } from './move-task.js';
 
 /**
  * Register all Task Master tools with the MCP server
@@ -61,6 +62,7 @@ export function registerTaskMasterTools(server) {
 		registerRemoveTaskTool(server);
 		registerRemoveSubtaskTool(server);
 		registerClearSubtasksTool(server);
+		registerMoveTaskTool(server);
 
 		// Group 5: Task Analysis & Expansion
 		registerAnalyzeProjectComplexityTool(server);

mcp-server/src/tools/move-task.js

@@ -0,0 +1,124 @@
+/**
+ * tools/move-task.js
+ * Tool for moving tasks or subtasks to a new position
+ */
+
+import { z } from 'zod';
+import {
+	handleApiResult,
+	createErrorResponse,
+	withNormalizedProjectRoot
+} from './utils.js';
+import { moveTaskDirect } from '../core/task-master-core.js';
+import { findTasksJsonPath } from '../core/utils/path-utils.js';
+
+/**
+ * Register the moveTask tool with the MCP server
+ * @param {Object} server - FastMCP server instance
+ */
+export function registerMoveTaskTool(server) {
+	server.addTool({
+		name: 'move_task',
+		description: 'Move a task or subtask to a new position',
+		parameters: z.object({
+			from: z.string().describe(
+				'ID of the task/subtask to move (e.g., "5" or "5.2"). Can be comma-separated to move multiple tasks (e.g., "5,6,7")'
+			),
+			to: z.string().describe(
+				'ID of the destination (e.g., "7" or "7.3"). Must match the number of source IDs if comma-separated'
+			),
+			file: z
+				.string()
+				.optional()
+				.describe('Custom path to tasks.json file'),
+			projectRoot: z
+				.string()
+				.optional()
+				.describe('Root directory of the project (typically derived from session)')
+		}),
+		execute: withNormalizedProjectRoot(async (args, { log, session }) => {
+			try {
+				// Find tasks.json path if not provided
+				let tasksJsonPath = args.file;
+				
+				if (!tasksJsonPath) {
+					tasksJsonPath = findTasksJsonPath(args, log);
+				}
+
+				// Parse comma-separated IDs
+				const fromIds = args.from.split(',').map(id => id.trim());
+				const toIds = args.to.split(',').map(id => id.trim());
+
+				// Validate matching IDs count
+				if (fromIds.length !== toIds.length) {
+					return createErrorResponse(
+						'The number of source and destination IDs must match',
+						'MISMATCHED_ID_COUNT'
+					);
+				}
+
+				// If moving multiple tasks
+				if (fromIds.length > 1) {
+					const results = [];
+					// Move tasks one by one, only generate files on the last move
+					for (let i = 0; i < fromIds.length; i++) {
+						const fromId = fromIds[i];
+						const toId = toIds[i];
+						
+						// Skip if source and destination are the same
+						if (fromId === toId) {
+							log.info(`Skipping ${fromId} -> ${toId} (same ID)`);
+							continue;
+						}
+						
+						const shouldGenerateFiles = i === fromIds.length - 1;
+						const result = await moveTaskDirect(
+							{
+								sourceId: fromId,
+								destinationId: toId,
+								tasksJsonPath,
+								projectRoot: args.projectRoot
+							},
+							log,
+							{ session }
+						);
+						
+						if (!result.success) {
+							log.error(`Failed to move ${fromId} to ${toId}: ${result.error.message}`);
+						} else {
+							results.push(result.data);
+						}
+					}
+					
+					return {
+						success: true,
+						data: {
+							moves: results,
+							message: `Successfully moved ${results.length} tasks`
+						}
+					};
+				} else {
+					// Moving a single task
+					return handleApiResult(
+						await moveTaskDirect(
+							{
+								sourceId: args.from,
+								destinationId: args.to,
+								tasksJsonPath,
+								projectRoot: args.projectRoot
+							},
+							log,
+							{ session }
+						),
+						log
+					);
+				}
+			} catch (error) {
+				return createErrorResponse(
+					`Failed to move task: ${error.message}`,
+					'MOVE_TASK_ERROR'
+				);
+			}
+		})
+	});
+}