/**
 * IntentMatchStatsProvider — FR-W10 AC5 意图匹配统计
 *
 * 记录意图匹配命中事件，提供 30 天统计和典型命中对话片段。
 */
import type { IntentMatchStats } from './workbench-types.js';
import type { IntentMatchStatsProvider } from './intent-management-service.js';
export interface IntentMatchEvent {
    intentId: string;
    timestamp: Date;
    snippet: string;
    confidence: number;
}
export declare class InMemoryIntentMatchStatsProvider implements IntentMatchStatsProvider {
    private events;
    private maxSnippets;
    constructor(opts?: {
        maxSnippets?: number;
    });
    /** Record a match hit for an intent */
    recordMatch(intentId: string, snippet: string, confidence?: number): void;
    /** AC5: Get stats for an intent over the last N days */
    getStats(intentId: string, days: number): Promise<IntentMatchStats>;
    /** Get all recorded events (for debugging/testing) */
    getAllEvents(): readonly IntentMatchEvent[];
    /** Prune events older than the given number of days */
    prune(days: number): number;
    clear(): void;
}
//# sourceMappingURL=intent-match-stats-provider.d.ts.map