/**
 * AskUserQuestion tool — pauses the agentic loop to ask the user a question.
 *
 * This tool is intercepted by the agentic loop before execution. When the LLM
 * calls it, the loop yields a `needsInput` result instead of executing the tool
 * locally. The caller (gateway) sends the question to the user, waits for a
 * response, then resumes the loop with the user's answer as the tool_result.
 *
 * Renders as blex:poll (multiple options) or blex:confirm (yes/no) in webchat.
 */
import type { Tool } from './index.js';
export declare const ASK_USER_QUESTION_TOOL = "AskUserQuestion";
export declare const askUserQuestionTool: Tool;
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