export interface BigFiveScores {
    extraversion: number;
    conscientiousness: number;
    agreeableness: number;
    openness: number;
    emotionalStability: number;
}
export interface BigFiveSample {
    timestamp: string;
    chatId: string;
    user: BigFiveScores;
    robot: BigFiveScores;
}
export interface BigFiveProfile {
    sampleCount: number;
    lastUpdated: string;
    user: BigFiveScores;
    robot: BigFiveScores;
}
export declare function loadProfile(): Promise<BigFiveProfile | null>;
/**
 * Validate and clamp raw scores from LLM output.
 * Returns null if the data is completely unusable.
 */
export declare function validateScores(raw: unknown): BigFiveScores | null;
/**
 * Record a new observation sample and update the running profile.
 * Safe to call fire-and-forget.
 */
export declare function updateProfile(sample: BigFiveSample): Promise<void>;
/**
 * Format the personality profile as a text block for the system prompt.
 * Returns empty string if no profile exists yet.
 */
export declare function formatProfileBlock(profile: BigFiveProfile | null): string;
/**
 * Get the current personality profile with caching.
 * Refreshes from disk at most every 5 minutes.
 */
export declare function getCachedProfile(): Promise<BigFiveProfile | null>;
/** Force-refresh the cache (called after updating the profile). */
export declare function invalidateProfileCache(): void;
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