/**
 * @toolplex/ai-engine - MCP Client
 *
 * Core MCP client that manages sessions and tool operations.
 * Uses a TransportFactory for platform-specific transport creation.
 */
import type { MCPResult, MCPToolResult, MCPClientConfig, CreateTransportOptions } from "./types.js";
/**
 * MCP Client - manages sessions and provides tool operations
 */
export declare class MCPClient {
    private sessions;
    private transportFactory;
    private logger;
    private imageHandler;
    private getCurrentUserId;
    constructor(config: MCPClientConfig);
    /**
     * Creates an MCP session and waits for tools to be initialized
     *
     * CRITICAL: The ToolPlex MCP server fetches tool schemas from the API during startup.
     * This is asynchronous and can take time. We MUST wait for this to complete before
     * returning, otherwise listTools() will return empty schemas.
     *
     * @param userId - Optional user ID for system API keys (per-user telemetry)
     * @param options - Additional options including clientMode
     */
    createSession(sessionId: string, apiKey: string, sessionResumeHistory?: string, userId?: string, options?: CreateTransportOptions): Promise<MCPResult>;
    /**
     * Lists available tools for a session
     */
    listTools(sessionId: string): Promise<{
        tools: any[];
    }>;
    /**
     * Calls a tool for a session
     */
    callTool(sessionId: string, toolName: string, args: any): Promise<MCPToolResult>;
    /**
     * Destroys an MCP session
     */
    destroySession(sessionId: string): Promise<MCPResult>;
    /**
     * Gets all active session IDs
     */
    getActiveSessions(): string[];
    /**
     * Destroys all MCP sessions (cleanup)
     */
    destroyAllSessions(): Promise<void>;
    /**
     * Gets session info
     */
    getSessionInfo(sessionId: string): {
        exists: boolean;
        isConnected?: boolean;
    };
    /**
     * Check if a session exists
     */
    hasSession(sessionId: string): boolean;
}
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