Implement fix-dependencies MCP command for automatically fixing invalid dependencies

.changeset/two-bats-smoke.md

@@ -18,5 +18,6 @@
 - Implement clear-subtasks MCP command for clearing subtasks from parent tasks
 - Implement remove-dependency MCP command for removing dependencies from tasks
 - Implement validate-dependencies MCP command for checking validity of task dependencies
+- Implement fix-dependencies MCP command for automatically fixing invalid dependencies
 - Document MCP server naming conventions in architecture.mdc and mcp.mdc files (file names use kebab-case, direct functions use camelCase with Direct suffix, tool registration functions use camelCase with Tool suffix, and MCP tool names use snake_case)
 - Enhance task show view with a color-coded progress bar for visualizing subtask completion percentage

mcp-server/src/core/direct-functions/fix-dependencies.js

@@ -0,0 +1,55 @@
+/**
+ * Direct function wrapper for fixDependenciesCommand
+ */
+
+import { fixDependenciesCommand } from '../../../../scripts/modules/dependency-manager.js';
+import { findTasksJsonPath } from '../utils/path-utils.js';
+import fs from 'fs';
+
+/**
+ * Fix invalid dependencies in tasks.json automatically
+ * @param {Object} args - Function arguments
+ * @param {string} [args.file] - Path to the tasks file
+ * @param {string} [args.projectRoot] - Project root directory
+ * @param {Object} log - Logger object
+ * @returns {Promise<{success: boolean, data?: Object, error?: {code: string, message: string}}>}
+ */
+export async function fixDependenciesDirect(args, log) {
+  try {
+    log.info(`Fixing invalid dependencies in tasks...`);
+    
+    // Determine the tasks file path
+    const tasksPath = args.file || await findTasksJsonPath(args.projectRoot);
+    
+    // Verify the file exists
+    if (!fs.existsSync(tasksPath)) {
+      return {
+        success: false,
+        error: {
+          code: 'FILE_NOT_FOUND',
+          message: `Tasks file not found at ${tasksPath}`
+        }
+      };
+    }
+    
+    // Call the original command function
+    await fixDependenciesCommand(tasksPath);
+    
+    return {
+      success: true,
+      data: {
+        message: 'Dependencies fixed successfully',
+        tasksPath
+      }
+    };
+  } catch (error) {
+    log.error(`Error fixing dependencies: ${error.message}`);
+    return {
+      success: false,
+      error: {
+        code: 'FIX_DEPENDENCIES_ERROR',
+        message: error.message
+      }
+    };
+  }
+} 

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

@@ -24,6 +24,7 @@ import { clearSubtasksDirect } from './direct-functions/clear-subtasks.js';
 import { expandAllTasksDirect } from './direct-functions/expand-all-tasks.js';
 import { removeDependencyDirect } from './direct-functions/remove-dependency.js';
 import { validateDependenciesDirect } from './direct-functions/validate-dependencies.js';
+import { fixDependenciesDirect } from './direct-functions/fix-dependencies.js';
 
 // Re-export utility functions
 export { findTasksJsonPath } from './utils/path-utils.js';
@@ -48,7 +49,8 @@ export const directFunctions = new Map([
   ['clearSubtasksDirect', clearSubtasksDirect],
   ['expandAllTasksDirect', expandAllTasksDirect],
   ['removeDependencyDirect', removeDependencyDirect],
-  ['validateDependenciesDirect', validateDependenciesDirect]
+  ['validateDependenciesDirect', validateDependenciesDirect],
+  ['fixDependenciesDirect', fixDependenciesDirect]
 ]);
 
 // Re-export all direct function implementations
@@ -71,5 +73,6 @@ export {
   clearSubtasksDirect,
   expandAllTasksDirect,
   removeDependencyDirect,
-  validateDependenciesDirect
+  validateDependenciesDirect,
+  fixDependenciesDirect
 }; 

mcp-server/src/tools/fix-dependencies.js

@@ -0,0 +1,34 @@
+/**
+ * tools/fix-dependencies.js
+ * Tool for automatically fixing invalid task dependencies
+ */
+
+import { z } from "zod";
+import {
+  handleApiResult,
+  createErrorResponse
+} from "./utils.js";
+import { fixDependenciesDirect } from "../core/task-master-core.js";
+
+/**
+ * Register the fixDependencies tool with the MCP server
+ * @param {Object} server - FastMCP server instance
+ */
+export function registerFixDependenciesTool(server) {
+  server.addTool({
+    name: "fix_dependencies",
+    description: "Fix invalid dependencies in tasks automatically",
+    parameters: z.object({
+      file: z.string().optional().describe("Path to the tasks file"),
+      projectRoot: z.string().optional().describe("Root directory of the project (default: current working directory)")
+    }),
+    handler: async ({ file, projectRoot }, { logger }) => {
+      try {
+        const result = await fixDependenciesDirect({ file, projectRoot }, logger);
+        return handleApiResult(result);
+      } catch (error) {
+        return createErrorResponse(error);
+      }
+    }
+  });
+} 

mcp-server/src/tools/index.js

@@ -22,6 +22,7 @@ import { registerClearSubtasksTool } from "./clear-subtasks.js";
 import { registerExpandAllTool } from "./expand-all.js";
 import { registerRemoveDependencyTool } from "./remove-dependency.js";
 import { registerValidateDependenciesTool } from "./validate-dependencies.js";
+import { registerFixDependenciesTool } from "./fix-dependencies.js";
 
 /**
  * Register all Task Master tools with the MCP server
@@ -50,6 +51,7 @@ export function registerTaskMasterTools(server) {
     registerExpandAllTool(server);
     registerRemoveDependencyTool(server);
     registerValidateDependenciesTool(server);
+    registerFixDependenciesTool(server);
     
     logger.info("Successfully registered all Task Master tools");
   } catch (error) {