export interface MemoryEntry {
    id: number;
    agentId: string;
    content: string;
    source: 'feedback' | 'auto' | 'manual';
    importance: number;
    tags: string[] | null;
    active: boolean;
    createdAt: Date;
}
/**
 * Search memories using FTS5 full-text search.
 */
export declare function searchMemories(query: string, agentId?: string, limit?: number): MemoryEntry[];
/**
 * Get top memories for an agent, ranked by importance and recency.
 */
export declare function getAgentMemories(agentId: string, limit?: number, tags?: string[]): MemoryEntry[];
/**
 * Build a ZOOGENT_MEMORIES JSON string to inject into agent env.
 * Uses composite scoring: 0.4*recency + 0.3*frequency + 0.3*importance
 * Applies Ebbinghaus decay: memories lose relevance over time.
 */
export declare function buildMemoryInjection(agentId: string, maxItems?: number): string;