Remove xmcp references and fix TypeScript errors

- Remove xmcp import from init.ts and nextjs-docs.ts
- Update init tool to use new MCP SDK pattern with inputSchema and handler
- Add init tool to tools registry in index.ts
- Fix NextjsDocsArgs type definition to include force-search
- Add .js extensions to imports for ESM compatibility
- Add type assertion to work around TypeScript union type limitations

All tests passing.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: quuu

src/index.ts

@@ -13,6 +13,7 @@ import {
 // Import tools
 import * as browserEval from "./tools/browser-eval.js"
 import * as enableCacheComponents from "./tools/enable-cache-components.js"
+import * as init from "./tools/init.js"
 import * as nextjsDocs from "./tools/nextjs-docs.js"
 import * as nextjsRuntime from "./tools/nextjs-runtime.js"
 import * as upgradeNextjs16 from "./tools/upgrade-nextjs-16.js"
@@ -42,6 +43,7 @@ import * as nextjs16Examples from "./resources/(nextjs16)/migration/examples.js"
 const tools = [
   browserEval,
   enableCacheComponents,
+  init,
   nextjsDocs,
   nextjsRuntime,
   upgradeNextjs16,
@@ -115,8 +117,8 @@ server.setRequestHandler(CallToolRequestSchema, async (request) => {
   // Validate arguments with Zod schema
   const parsedArgs = validateToolArgs(tool.inputSchema, args || {})
 
-  // Call the tool handler
-  const result = await tool.handler(parsedArgs)
+  // Call the tool handler (cast to any to work around TypeScript union type limitations)
+  const result = await (tool.handler as any)(parsedArgs)
 
   return {
     content: [

src/tools/init.ts

@@ -1,8 +1,7 @@
-import { type InferSchema } from "xmcp"
 import { z } from "zod"
-import { markInitCalled } from "../_internal/global-state"
+import { markInitCalled } from "../_internal/global-state.js"
 
-export const schema = {
+export const inputSchema = {
   project_path: z
     .string()
     .optional()
@@ -30,7 +29,11 @@ Use this tool at the beginning of a Next.js session to:
 - Follow best practices for Next.js development`,
 }
 
-export default async function init(args: InferSchema<typeof schema>): Promise<string> {
+type InitArgs = {
+  project_path?: string
+}
+
+export async function handler(args: InitArgs): Promise<string> {
   try {
     // Fetch the latest Next.js LLM documentation
     let nextjsDocsContent = ""

src/tools/nextjs-docs.ts

@@ -1,5 +1,5 @@
 import { z } from "zod"
-import { isInitCalled } from "../_internal/global-state"
+import { isInitCalled } from "../_internal/global-state.js"
 
 export const inputSchema = {
   action: z
@@ -33,15 +33,13 @@ export const inputSchema = {
     ),
 }
 
-type NextjsDocsArgs = z.infer<typeof inputSchema["action"]> extends "search" | "get"
-  ? {
-      action: "search" | "get"
-      query?: string
-      path?: string
-      anchor?: string
-      routerType?: "all" | "app" | "pages"
-    }
-  : never
+type NextjsDocsArgs = {
+  action: "search" | "get" | "force-search"
+  query?: string
+  path?: string
+  anchor?: string
+  routerType?: "all" | "app" | "pages"
+}
 
 export const metadata = {
   name: "nextjs_docs",