/** Session-scoped undo stack for write operations. */
export interface EntrySnapshot {
    id: number;
    mediaId: number;
    status: string;
    score: number;
    progress: number;
    progressVolumes: number;
    notes: string | null;
    private: boolean;
}
export type UndoOperation = {
    type: "update";
    before: EntrySnapshot;
} | {
    type: "create";
    entryId: number;
    mediaId: number;
} | {
    type: "delete";
    before: EntrySnapshot;
} | {
    type: "batch";
    entries: Array<{
        before: EntrySnapshot;
    }>;
};
export interface UndoRecord {
    operation: UndoOperation;
    toolName: string;
    timestamp: number;
    description: string;
}
/** Push a record onto the undo stack, trimming oldest if full */
export declare function pushUndo(record: UndoRecord): void;
/** Pop the most recent undo record */
export declare function popUndo(): UndoRecord | undefined;
/** Inspect the most recent record without removing */
export declare function peekUndo(): UndoRecord | undefined;
/** Current stack depth */
export declare function undoStackSize(): number;
/** Clear all undo records */
export declare function clearUndoStack(): void;