/**
 * @fileoverview Risk Score History Repository
 * @module @skillsmith/core/repositories/RiskScoreHistoryRepository
 * @see SMI-3864: Security-informed quality scoring
 *
 * CRUD operations for the risk_score_history table.
 * Records point-in-time snapshots after each security scan
 * for trend detection and supply chain attack monitoring.
 */
import type { Database } from '../db/database-interface.js';
export interface RiskScoreSnapshot {
    id: number;
    skillId: string;
    riskScore: number;
    findingsCount: number;
    contentHash: string | null;
    scannedAt: string;
    source: 'install' | 'indexer' | 'rescan';
}
export declare class RiskScoreHistoryRepository {
    private readonly db;
    constructor(db: Database);
    /**
     * Record a risk score snapshot. Prunes old entries to cap at
     * MAX_HISTORY_PER_SKILL per skill (Review #7).
     */
    record(snapshot: Omit<RiskScoreSnapshot, 'id'>): void;
    /**
     * Get risk score history for a skill, most recent first.
     */
    getHistory(skillId: string, limit?: number): RiskScoreSnapshot[];
    /**
     * Get the most recent risk score snapshot for a skill.
     */
    getLatest(skillId: string): RiskScoreSnapshot | null;
}
//# sourceMappingURL=RiskScoreHistoryRepository.d.ts.map