import { SessionStore } from "agent-sh/session-store";
export interface SessionInfo {
    id: string;
    filePath: string;
    createdAt: number;
    name?: string;
    preview: string;
    entryCount: number;
}
/** Many sessions per cwd. Each is one .jsonl file under `dir/`. Constructor
 *  always opens a fresh session unless `opts.resumeSessionId` is given and
 *  points to an existing session file. /resume callers can `openSession(id)`
 *  to swap the current store to a past session file. */
export declare class MultiSessionStore {
    private dir;
    private cwd;
    private currentStore;
    constructor(dir: string, cwd: string, opts?: {
        resumeSessionId?: string;
    });
    markLastSession(): void;
    static readLastSessionId(dir: string, opts?: {
        fallbackToLatest?: boolean;
    }): string | undefined;
    setName(id: string, name: string): void;
    private readName;
    private metaFile;
    /** One-time import from the previous storage format (sessions stored as
     *  directories with tree.jsonl + snapshots/). Each old session is replayed
     *  from its most recent snapshot into a new flat `.jsonl` file, then the
     *  source directory is renamed `.migrated-<id>/` so the import is idempotent. */
    private migrateLegacy;
    current(): SessionStore;
    newSession(): SessionStore;
    openSession(id: string): SessionStore;
    deleteSession(id: string): void;
    listSessions(): SessionInfo[];
    private createFreshSession;
    private sessionFile;
}