import type { StructuredToolInterface } from "@langchain/core/tools";
import type { Tool as MCPTool, Resource, Prompt } from "@modelcontextprotocol/client";
import type { BaseConnector } from "@mcp-use/client";
import { BaseAdapter } from "./base.js";
/** Converts MCP tools, resources, and prompts into LangChain structured tools. */
export declare class LangChainAdapter extends BaseAdapter<StructuredToolInterface> {
    private usedToolNames;
    /**
     * @param disallowedTools - MCP tool names to omit during conversion.
     */
    constructor(disallowedTools?: string[]);
    private reserveName;
    /**
     * Converts MCP tools from all connectors and resets name deduplication.
     *
     * @param connectors - Connected MCP connectors.
     * @returns LangChain structured tools.
     */
    createToolsFromConnectors(connectors: BaseConnector[]): Promise<StructuredToolInterface[]>;
    /**
     * Convert a single MCP tool specification into a LangChainJS structured tool.
     */
    protected convertTool(mcpTool: MCPTool, connector: BaseConnector): StructuredToolInterface | null;
    /**
     * Convert a single MCP resource into a LangChainJS structured tool.
     * Each resource becomes an async tool that returns its content when called.
     */
    protected convertResource(mcpResource: Resource, connector: BaseConnector): StructuredToolInterface | null;
    /**
     * Convert a single MCP prompt into a LangChainJS structured tool.
     * The resulting tool executes getPrompt on the connector with the prompt's name
     * and the user-provided arguments (if any).
     */
    protected convertPrompt(mcpPrompt: Prompt, connector: BaseConnector): StructuredToolInterface | null;
}
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