export interface ErrorSignature {
    /** Server or framework name */
    server: string;
    /** Patterns to match against the HTTP response */
    patterns: {
        /** Regex strings to match in the response body */
        body?: string[];
        /** Expected HTTP status code */
        status?: number;
        /** Regex patterns to match against response header values (header name -> regex) */
        headers?: Record<string, string>;
    };
    /** URL paths that are likely to trigger this error page */
    triggerPaths: string[];
    /** Confidence score from 0.0 to 1.0 */
    confidence: number;
}
export declare const ERROR_SIGNATURES: ErrorSignature[];
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