/**
 * MCP transport utilities — stateful session-based mode.
 *
 * Each client session owns a StreamableHTTPServerTransport + McpServer pair.
 * SDK's stateful mode (sessionIdGenerator) handles SSE stream setup and session management.
 * Notifications are broadcast via SessionManager across all active sessions.
 */
import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
/**
 * Sets up debug logging on a transport instance.
 */
export declare function setupTransportLogging(transport: StreamableHTTPServerTransport): void;
/**
 * Initializes the global transport layer.
 * With stateful session-based transport, this is a no-op.
 * Kept for backward compatibility with app.ts startup sequence.
 */
export declare function initGlobalTransport(): void;
/**
 * Creates a new MCP transport and server instance for a single request (stateless mode).
 * Each call returns isolated instances that should be GC'd after the request completes.
 * This restores the v1.3.0 per-request transport pattern for clients like CherryStudio
 * that do not properly support stateful sessions.
 */
export declare function createPerRequestTransport(): Promise<{
    transport: StreamableHTTPServerTransport;
    server: import('@modelcontextprotocol/sdk/server/mcp.js').McpServer;
}>;
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