Implement validate-dependencies MCP command for checking dependency validity

mcp-server/src/tools/index.js

@@ -21,31 +21,41 @@ import { registerAnalyzeTool } from "./analyze.js";
 import { registerClearSubtasksTool } from "./clear-subtasks.js";
 import { registerExpandAllTool } from "./expand-all.js";
 import { registerRemoveDependencyTool } from "./remove-dependency.js";
+import { registerValidateDependenciesTool } from "./validate-dependencies.js";
 
 /**
  * Register all Task Master tools with the MCP server
  * @param {Object} server - FastMCP server instance
  */
 export function registerTaskMasterTools(server) {
-  registerListTasksTool(server);
-  registerSetTaskStatusTool(server);
-  registerParsePRDTool(server);
-  registerUpdateTool(server);
-  registerUpdateTaskTool(server);
-  registerUpdateSubtaskTool(server);
-  registerGenerateTool(server);
-  registerShowTaskTool(server);
-  registerNextTaskTool(server);
-  registerExpandTaskTool(server);
-  registerAddTaskTool(server);
-  registerAddSubtaskTool(server);
-  registerRemoveSubtaskTool(server);
-  registerAnalyzeTool(server);
-  registerClearSubtasksTool(server);
-  registerExpandAllTool(server);
-  registerRemoveDependencyTool(server);
+  logger.info("Registering Task Master tools with MCP server");
   
-  logger.info("Registered all Task Master tools with MCP server");
+  try {
+    // Register each tool
+    registerListTasksTool(server);
+    registerSetTaskStatusTool(server);
+    registerParsePRDTool(server);
+    registerUpdateTool(server);
+    registerUpdateTaskTool(server);
+    registerUpdateSubtaskTool(server);
+    registerGenerateTool(server);
+    registerShowTaskTool(server);
+    registerNextTaskTool(server);
+    registerExpandTaskTool(server);
+    registerAddTaskTool(server);
+    registerAddSubtaskTool(server);
+    registerRemoveSubtaskTool(server);
+    registerAnalyzeTool(server);
+    registerClearSubtasksTool(server);
+    registerExpandAllTool(server);
+    registerRemoveDependencyTool(server);
+    registerValidateDependenciesTool(server);
+    
+    logger.info("Successfully registered all Task Master tools");
+  } catch (error) {
+    logger.error(`Error registering Task Master tools: ${error.message}`);
+    throw error;
+  }
 }
 
 export default {

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

@@ -0,0 +1,34 @@
+/**
+ * tools/validate-dependencies.js
+ * Tool for validating task dependencies
+ */
+
+import { z } from "zod";
+import {
+  handleApiResult,
+  createErrorResponse
+} from "./utils.js";
+import { validateDependenciesDirect } from "../core/task-master-core.js";
+
+/**
+ * Register the validateDependencies tool with the MCP server
+ * @param {Object} server - FastMCP server instance
+ */
+export function registerValidateDependenciesTool(server) {
+  server.addTool({
+    name: "validate_dependencies",
+    description: "Identify invalid dependencies in tasks without fixing them",
+    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 validateDependenciesDirect({ file, projectRoot }, logger);
+        return handleApiResult(result);
+      } catch (error) {
+        return createErrorResponse(error);
+      }
+    }
+  });
+}