import type { ShortTermMemoryBackend } from './factory.js';
interface ShortTermMemory {
    id?: number;
    timestamp: string;
    type: 'action' | 'observation' | 'thought' | 'goal';
    content: string;
    projectId?: string;
    importance?: number;
}
export declare class SQLiteShortTermMemory implements ShortTermMemoryBackend {
    private db;
    private projectId;
    private maxEntries;
    private cache;
    constructor(config: {
        dbPath: string;
        projectId?: string;
        maxEntries?: number;
    });
    private initSchema;
    store(type: ShortTermMemory['type'], content: string, importance?: number): Promise<void>;
    storeBatch(entries: Array<{
        type: ShortTermMemory['type'];
        content: string;
        timestamp?: string;
        importance?: number;
    }>): Promise<void>;
    getRecent(limit?: number): Promise<ShortTermMemory[]>;
    query(searchTerm: string, limit?: number): Promise<ShortTermMemory[]>;
    /**
     * Sanitize search term for FTS5 query syntax
     * Wraps each word in double quotes to prevent FTS5 syntax errors from
     * special characters like AND, OR, NOT, *, -, parentheses, etc.
     */
    private sanitizeFTS5Query;
    private queryWithoutCache;
    getByType(type: ShortTermMemory['type'], limit?: number): Promise<ShortTermMemory[]>;
    count(): Promise<number>;
    private prune;
    clear(): Promise<void>;
    close(): Promise<void>;
    exportAll(): Promise<ShortTermMemory[]>;
    importAll(memories: Array<{
        type: ShortTermMemory['type'];
        content: string;
        timestamp?: string;
    }>): Promise<number>;
}
export {};
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