import type { StructuredToolInterface } from "@langchain/core/tools";
import type { LangChainAdapter } from "../adapters/langchain_adapter.js";
import type { MCPClient } from "@mcp-use/client";
import type { IServerManager } from "./types.js";
/** Selects an active MCP server and exposes its LangChain tools. */
export declare class ServerManager implements IServerManager {
    /** Whether capabilities have been loaded for each configured server. */
    readonly initializedServers: Record<string, boolean>;
    /** Cached LangChain tools, resources, and prompts by server name. */
    readonly serverTools: Record<string, StructuredToolInterface[]>;
    /** MCP client that owns server configurations and sessions. */
    readonly client: MCPClient;
    /** Adapter used to create LangChain tools. */
    readonly adapter: LangChainAdapter;
    /** Server whose cached tools are currently exposed. */
    activeServer: string | null;
    private overrideManagementTools?;
    /**
     * @param client - MCP client that owns the managed servers.
     * @param adapter - Adapter used to convert MCP capabilities.
     * @param managementTools - Optional replacement for the built-in server
     * management tools.
     */
    constructor(client: MCPClient, adapter: LangChainAdapter, managementTools?: StructuredToolInterface[]);
    /**
     * Replaces the management tools returned by {@link ServerManager.tools}.
     *
     * @param tools - Complete replacement tool list.
     */
    setManagementTools(tools: StructuredToolInterface[]): void;
    /**
     * Writes current connection and tool-cache state at debug level.
     *
     * @param context - Label describing why the state was logged.
     */
    logState(context: string): void;
    /** Validates that the client contains at least one server configuration. */
    initialize(): void;
    /**
     * Connects configured servers as needed and caches all tools, resources, and
     * prompts.
     */
    prefetchServerTools(): Promise<void>;
    /**
     * @returns Management tools plus cached tools from the active server, if any.
     */
    get tools(): StructuredToolInterface[];
}
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