/**
 * Signal explanation generator
 */
import type { TradingSignal } from "../types/index.js";
export declare class ExplainEngine {
    /**
     * Generate human-readable explanation for a signal
     */
    static generateExplanation(signal: TradingSignal): string;
    /**
     * Generate a one-line summary of the signal
     */
    static generateOneLine(signal: TradingSignal): string;
    /**
     * Generate explanation for why a signal was rejected
     */
    static generateRejectionReason(symbol: string, score: number, minScore: number, filterFailures: string[]): string;
}
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