feat(tools-registry): add global-chat

[globalchatapp]

Summary

Adds Global Chat to the AI SDK tools registry.

Global Chat is a cross-protocol agent discovery infrastructure providing:

• Agent directory search — discover AI agents across MCP, A2A, and x402 protocols
• Agent detail lookup — get capabilities, endpoints, and protocol support for any registered agent
• agents.txt validation — validate compliance with the agents.txt specification

Package

• npm: @globalchatadsapp/mcp-server
• GitHub: pumanitro/global-chat
• Website: global-chat.io

Usage

The tool is an MCP server that integrates with the AI SDK via experimental_createMCPClient:

import { generateText, isStepCount } from 'ai';
import { experimental_createMCPClient as createMCPClient } from 'ai';
import { Experimental_StdioMCPTransport as StdioMCPTransport } from 'ai';

const client = await createMCPClient({
  transport: new StdioMCPTransport({
    command: 'npx',
    args: ['-y', '@globalchatadsapp/mcp-server'],
  }),
});

const tools = await client.tools();

const { text } = await generateText({
  model: 'anthropic/claude-sonnet-4',
  prompt: 'Search the agent directory for payment agents that support USDC',
  tools,
  stopWhen: isStepCount(5),
});

console.log(text);
await client.close();

Checklist

• Package published to npm
• Tool tested with the AI SDK
• Working code example provided
• Only modifies content/tools-registry/registry.ts