/**
 * MCP Extension
 * Provides MCP (Model Context Protocol) guidance resources.
 * Runtime MCP tool loading is handled by the AgentSession SDK.
 * [WHO]: mcpExtension (default export)
 * [FROM]: node:fs, node:path, node:url
 * [TO]: Loaded as an extension entry point by core/extensions-host/loader.ts
 * [HERE]: extensions/builtin/mcp/index.ts - owned by extensions/builtin/AGENT.md
 */
import type { ExtensionAPI } from "../../../core/extensions-host/types.js";
export default function mcpExtension(api: ExtensionAPI): Promise<void>;