import type { ITool, ToolResult } from '../ITool.ts';
import type { JSONSchema } from '../../llm/types.ts';
import type { ExecutionContext } from '../../core/ExecutionContext.ts';
export interface AskHumanPayload {
    question: string;
    context?: string;
}
export declare const ASK_HUMAN_MAX_QUESTION_LENGTH = 4000;
export declare const ASK_HUMAN_MAX_CONTEXT_LENGTH = 1000;
export declare class AskHumanSignal extends Error {
    readonly payload: AskHumanPayload;
    constructor(payload: AskHumanPayload);
}
export declare const askHumanInputSchema: JSONSchema;
export declare class AskHumanTool implements ITool {
    name: string;
    description: string;
    inputSchema: JSONSchema;
    execute(input: unknown, _context: ExecutionContext): Promise<ToolResult>;
}
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