/**
 * @license
 * Copyright 2025 Vybestack LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { type Todo } from './todo-schemas.js';
export declare class TodoStore {
    private readonly filePath;
    constructor(sessionId: string, agentId?: string);
    /**
     * Parse file content handling both legacy (Todo[]) and new ({ todos, paused }) formats.
     */
    private parseFileContent;
    /**
     * Read the full file data including todos and paused state.
     */
    private readFileData;
    /**
     * Write the full file data including todos and paused state.
     */
    private writeFileData;
    readTodos(): Promise<Todo[]>;
    writeTodos(todos: Todo[]): Promise<void>;
    /**
     * Read the paused state from the todo file.
     * Returns false if file doesn't exist or is in legacy format.
     */
    readPausedState(): Promise<boolean>;
    /**
     * Write the paused state to the todo file.
     * Preserves existing todos.
     */
    writePausedState(paused: boolean): Promise<void>;
}