Implement remove-subtask MCP command for removing subtasks from parent tasks

mcp-server/src/tools/index.js

@@ -16,6 +16,7 @@ import { registerNextTaskTool } from "./next-task.js";
 import { registerExpandTaskTool } from "./expand-task.js";
 import { registerAddTaskTool } from "./add-task.js";
 import { registerAddSubtaskTool } from "./add-subtask.js";
+import { registerRemoveSubtaskTool } from "./remove-subtask.js";
 
 /**
  * Register all Task Master tools with the MCP server
@@ -34,6 +35,7 @@ export function registerTaskMasterTools(server) {
   registerExpandTaskTool(server);
   registerAddTaskTool(server);
   registerAddSubtaskTool(server);
+  registerRemoveSubtaskTool(server);
   
   logger.info("Registered all Task Master tools with MCP server");
 }

mcp-server/src/tools/remove-subtask.js

@@ -0,0 +1,50 @@
+/**
+ * tools/remove-subtask.js
+ * Tool for removing subtasks from parent tasks
+ */
+
+import { z } from "zod";
+import {
+  handleApiResult,
+  createErrorResponse
+} from "./utils.js";
+import { removeSubtaskDirect } from "../core/task-master-core.js";
+
+/**
+ * Register the removeSubtask tool with the MCP server
+ * @param {Object} server - FastMCP server instance
+ */
+export function registerRemoveSubtaskTool(server) {
+  server.addTool({
+    name: "remove_subtask",
+    description: "Remove a subtask from its parent task",
+    parameters: z.object({
+      id: z.string().describe("Subtask ID to remove in format 'parentId.subtaskId' (required)"),
+      convert: z.boolean().optional().describe("Convert the subtask to a standalone task instead of deleting it"),
+      file: z.string().optional().describe("Path to the tasks file (default: tasks/tasks.json)"),
+      skipGenerate: z.boolean().optional().describe("Skip regenerating task files"),
+      projectRoot: z.string().optional().describe("Root directory of the project (default: current working directory)")
+    }),
+    execute: async (args, { log }) => {
+      try {
+        log.info(`Removing subtask with args: ${JSON.stringify(args)}`);
+        
+        // Call the direct function wrapper
+        const result = await removeSubtaskDirect(args, log);
+        
+        // Log result
+        if (result.success) {
+          log.info(`Subtask removed successfully: ${result.data.message}`);
+        } else {
+          log.error(`Failed to remove subtask: ${result.error.message}`);
+        }
+        
+        // Use handleApiResult to format the response
+        return handleApiResult(result, log, 'Error removing subtask');
+      } catch (error) {
+        log.error(`Error in removeSubtask tool: ${error.message}`);
+        return createErrorResponse(error.message);
+      }
+    },
+  });
+}