/**
 * Leaper Agent – Todo Tool
 * In-session task management: add, list, complete, remove todos.
 */
import type { ToolDefinition } from './registry.js';
export type TodoStatus = 'pending' | 'in_progress' | 'completed' | 'cancelled';
export type TodoPriority = 'low' | 'medium' | 'high' | 'critical';
export interface TodoItem {
    id: string;
    title: string;
    description?: string;
    status: TodoStatus;
    priority: TodoPriority;
    due_date?: string;
    created_at: string;
    updated_at: string;
    tags?: string[];
}
export interface TodoStore {
    items: TodoItem[];
}
export declare function addTodo(title: string, opts?: {
    description?: string;
    priority?: TodoPriority;
    due_date?: string;
    tags?: string[];
}): TodoItem;
export declare function listTodos(filter?: {
    status?: TodoStatus;
    priority?: TodoPriority;
}): TodoItem[];
export declare function getTodo(id: string): TodoItem | undefined;
export declare function updateTodo(id: string, updates: Partial<Omit<TodoItem, 'id' | 'created_at'>>): TodoItem | null;
export declare function completeTodo(id: string): TodoItem | null;
export declare function removeTodo(id: string): boolean;
export declare function clearCompleted(): number;
export declare function replaceAll(items: TodoItem[]): void;
export declare function getStore(): TodoStore;
export declare function resetStore(): void;
export declare function summarizeTodos(): string;
export declare const todoTool: ToolDefinition;
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