export interface SkillStats {
    confidence: number;
    usage_count: number;
    success_count: number;
    failure_count: number;
    negative_examples: string[];
}
export declare function adjustConfidence(current: SkillStats, outcome: "success" | "failure" | "partial", failureReason?: string): SkillStats;
export declare function loadSkillStats(skillDir: string): Promise<SkillStats>;
export declare function saveSkillStats(skillDir: string, stats: SkillStats): Promise<void>;
export declare function isSkillFlagged(stats: SkillStats): boolean;