MCPConnection

import { MCPClient, type MCPConnection } from "@mcp-use/client";

const connection = await client.connect("demo");

connection.info.protocolEra   // "legacy" | "modern"
connection.info.protocolVersion
connection.info.server          // { name, version, title, ... }
connection.info.capabilities
connection.info.instructions
connection.info.extensions
connection.authorization             // optional mixed-auth state
connection.info.authorization        // same state in the metadata snapshot
await connection.discoverAuthorization() // populate optional mixed-auth state
connection.supports("sampling") // capability check

interface MCPConnectionInfo {
  protocolEra: "legacy" | "modern";
  protocolVersion: string;
  server: MCPServerInfo;
  capabilities: Record<string, unknown>;
  instructions?: string;
  extensions: Record<string, unknown>;
  authorization?: MCPAuthorizationInfo;
}

interface MCPAuthorizationInfo {
  mode: "mixed";
  authenticated: boolean;
  resource?: string;
  scopesSupported?: string[];
}

interface Root {
  uri: string;   // file://...
  name?: string;
}

type NotificationHandler = (notification: Notification) => void | Promise<void>;