import { BaseAgent, ConversationContext, ChatResponse, OperationalMode, UsageStats } from './base-agent';
import { MCPConnectionStatus } from './mcp/types';

export declare class LangChainAgent extends BaseAgent {
    private executor;
    private systemMessage;
    private mcpManager?;
    private smartMemory;
    private mcpConnectionStatus;
    boot(): Promise<void>;
    chat(message: string, context?: ConversationContext): Promise<ChatResponse>;
    shutdown(): Promise<void>;
    switchMode(mode: OperationalMode): void;
    getUsageStats(): UsageStats;
    getUsageLog(): UsageStats[];
    clearUsageStats(): void;
    getMCPConnectionStatus(): Map<string, MCPConnectionStatus>;
    private createAgentKit;
    private createExecutor;
    private handleError;
    private initializeMCP;
    /**
     * Connect to MCP servers asynchronously after agent boot with background timeout pattern
     */
    connectMCPServers(): Promise<void>;
    /**
     * Connect to a single MCP server in background with timeout
     */
    private connectServerInBackground;
    /**
     * Check if a string is valid JSON
     */
    private isJSON;
}