Basic logic to update Claude.app

Author: jspahrsummers

src/index.ts

@@ -7,9 +7,57 @@ import fs from "fs/promises";
 import chalk from "chalk";
 import ora from "ora";
 import ejs from "ejs";
+import os from "os";
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
+async function updateClaudeConfig(directory: string, name: string) {
+  let configDir;
+  switch (os.platform()) {
+    case "darwin":
+      configDir = path.join(
+        os.homedir(),
+        "Library",
+        "Application Support",
+        "Claude",
+      );
+      break;
+    case "win32":
+      configDir = path.join(process.env.APPDATA || "", "Claude");
+      break;
+    default:
+      return;
+  }
+
+  const configFile = path.join(configDir, "claude_desktop_config.json");
+
+  try {
+    const config = JSON.parse(await fs.readFile(configFile, "utf-8"));
+
+    if (!config.mcpServers) {
+      config.mcpServers = {};
+    }
+
+    if (!config.mcpServers[name]) {
+      config.mcpServers[name] = {
+        command: "node",
+        args: ["index.js"],
+      };
+    }
+
+    await fs.writeFile(configFile, JSON.stringify(config, null, 2));
+    console.log(
+      chalk.green(
+        "✓ Successfully added MCP server to Claude.app configuration",
+      ),
+    );
+  } catch {
+    console.log(
+      chalk.yellow("Note: Could not update Claude.app configuration"),
+    );
+  }
+}
+
 async function createServer(directory: string, options: any = {}) {
   const questions = [
     {
@@ -26,6 +74,13 @@ async function createServer(directory: string, options: any = {}) {
       default: "A Model Context Protocol server",
       when: !options.description,
     },
+    {
+      type: "confirm",
+      name: "installForClaude",
+      message: "Would you like to install this server for Claude.app?",
+      default: true,
+      when: os.platform() === "darwin" || os.platform() === "win32",
+    },
   ];
 
   const answers = await inquirer.prompt(questions);
@@ -80,6 +135,10 @@ async function createServer(directory: string, options: any = {}) {
 
     spinner.succeed(chalk.green("MCP server created successfully!"));
 
+    if (answers.installForClaude) {
+      await updateClaudeConfig(directory, config.name);
+    }
+
     // Print next steps
     console.log("\nNext steps:");
     console.log(chalk.cyan(`  cd ${directory}`));