feat: register ask_chatgpt MCP tool

src/server.js

@@ -1,9 +1,38 @@
 import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
+import { baseInputSchema } from "./tools/schemas.js";
+import { handleAskChatGpt } from "./tools/ask-chatgpt.js";
+import { loadConfig } from "./config/env.js";
+import { createOpenAIClient } from "./openai/client.js";
+import { sendOpenAIResponse } from "./openai/responses.js";
 
 const server = new McpServer({
   name: "chatgpt-mcp",
   version: "0.1.0"
 });
 
+server.registerTool(
+  "ask_chatgpt",
+  {
+    description:
+      "General second-opinion question for advice, alternatives, risks, and clarification.",
+    inputSchema: baseInputSchema,
+  },
+  async (input) => {
+    const result = await handleAskChatGpt(input, {
+      loadConfig,
+      createOpenAIClient,
+      sendOpenAIResponse,
+    });
+
+    return {
+      content: [
+        { type: "text", text: result.ok ? result.answer : `Error: ${result.error}` },
+      ],
+      isError: !result.ok,
+      warnings: result.warnings?.length ? result.warnings : undefined,
+    };
+  }
+);
+
 await server.connect(new StdioServerTransport());