/**
 * JsonMemoryBackend — file-backed implementation (legacy default).
 *
 * Wraps the original `.slope/memories.json` behavior in the MemoryBackend
 * interface so callers can swap to a store-backed adapter without changing
 * the memory.ts public API. Preserves atomic writes (temp + rename) and
 * v0 → v1 migration.
 */
import type { MemoryBackend } from './memory-backend.js';
import type { Memory, MemoriesFile } from './memory-types.js';
export declare class JsonMemoryBackend implements MemoryBackend {
    readonly kind: "json";
    private path;
    private cwd;
    constructor(cwd: string);
    load(): MemoriesFile;
    saveAll(data: MemoriesFile): void;
    add(memory: Memory): void;
    remove(id: string): boolean;
    update(id: string, fields: Partial<Pick<Memory, 'text' | 'category' | 'weight' | 'updatedAt'>>): Memory | null;
    getById(id: string): Memory | undefined;
}
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