import { HttpClient } from '../../utils/http-client.js';
export interface LlmsTxtVariant {
    url: string;
    variant: string;
    exists: boolean;
}
/**
 * Detector for llms.txt files and their variants
 * Based on Skill_Seekers implementation
 */
export declare class LlmsTxtDetector {
    private baseUrl;
    private httpClient;
    private readonly VARIANTS;
    constructor(baseUrl: string, httpClient?: HttpClient);
    /**
     * Detect all available llms.txt variants
     * Returns array of variants that exist
     */
    detectAll(): Promise<LlmsTxtVariant[]>;
    /**
     * Check if a specific llms.txt file exists
     * Uses GET with Range header since HttpClient doesn't have HEAD method
     */
    private checkExists;
    /**
     * Detect if ANY llms.txt variant exists
     */
    detectAny(): Promise<LlmsTxtVariant | null>;
}
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