export declare const ENTRY_DELIMITER = "\n\u00A7\n";
export type MemoryTarget = "memory" | "user";
export type MemoryResult = Record<string, unknown>;
/**
 * Atomic write via temp `.mem_*` in the same directory + rename (Hermes).
 * Prefer project-local naming; do not use OS tmpdir for the final swap.
 */
export declare function atomicWriteText(path: string, content: string, tmpPrefix?: string): void;
export type MemoryStoreOptions = {
    memoryDirectory: string;
    memoryCharLimit?: number;
    userCharLimit?: number;
};
export declare class MemoryStore {
    memoryDirectory: string;
    memoryCharLimit: number;
    userCharLimit: number;
    memoryEntries: string[];
    userEntries: string[];
    private consolidationFailures;
    constructor(options: MemoryStoreOptions);
    pathFor(target: MemoryTarget): string;
    entriesFor(target: MemoryTarget): string[];
    setEntries(target: MemoryTarget, entries: string[]): void;
    charLimit(target: MemoryTarget): number;
    charCount(target: MemoryTarget): number;
    resetConsolidationFailures(): void;
    private consolidationFailure;
    private successResponse;
    private batchError;
    static parseEntries(raw: string): string[];
    static readRawChecked(path: string): {
        raw: string;
        readOk: boolean;
    };
    private detectExternalDrift;
    /**
     * Re-read under lock. Returns null (ok), bak path (drift), or READ_FAILED.
     */
    private reloadTarget;
    private saveToDisk;
    add(target: MemoryTarget, content: string): Promise<MemoryResult>;
    replace(target: MemoryTarget, oldText: string, newContent: string): Promise<MemoryResult>;
    remove(target: MemoryTarget, oldText: string): Promise<MemoryResult>;
    applyBatch(target: MemoryTarget, operations: Array<Record<string, unknown>>): Promise<MemoryResult>;
    /** Usage string for status (no contents). */
    usageLabel(target: MemoryTarget): string;
    /** Load live entries from disk without mutation (for status). */
    loadLiveFromDisk(): void;
}
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