/**
 * Memory entropy decay constants — used by MemoryEngine when applying hygiene
 * sweeps and quarantine/scrap promotion logic.
 */
/** Entropy score above which a memory is considered noisy and decay-eligible. */
export declare const ENTROPY_NOISE_THRESHOLD = 0.8;
/** Entropy score above which a memory is scrap-eligible during hygiene. */
export declare const ENTROPY_SCRAP_THRESHOLD = 0.95;
/** Default entropy decay delta applied per hygiene sweep cycle. */
export declare const DEFAULT_DECAY_RATE = 0.05;
/**
 * Entropy weights for the quadrant-model-derived (QMD) composite score.
 * recency × w_r + frequency × w_f + relevance × w_v.
 */
export declare const QMD_WEIGHTS: {
    readonly recency: 0.4;
    readonly frequency: 0.3;
    readonly relevance: 0.3;
};
