import { z } from "zod/v4";
import { ToolMessage } from "@langchain/core/messages";
import type { BaseChatModel } from "@langchain/core/language_models/chat_models";
import type { ChatXAI } from "@langchain/xai";
export declare const researchSchema: z.ZodObject<{
    explanation: z.ZodString;
    query: z.ZodString;
    maxDepth: z.ZodDefault<z.ZodNullable<z.ZodOptional<z.ZodNumber>>>;
}, z.core.$strip>;
/**
 * Creates a tool that performs deep web research on a topic
 */
export declare const createResearchTool: (workspace: string, chatModel: BaseChatModel | ChatXAI) => import("@langchain/core/tools").DynamicStructuredTool<z.ZodObject<{
    explanation: z.ZodString;
    query: z.ZodString;
    maxDepth: z.ZodDefault<z.ZodNullable<z.ZodOptional<z.ZodNumber>>>;
}, z.core.$strip>, {
    explanation: string;
    query: string;
    maxDepth: number | null;
}, {
    explanation: string;
    query: string;
    maxDepth?: number | null | undefined;
}, string | ToolMessage>;