import type { TaskStatus, Tool } from '@wrongstack/core/types';
import { type TaskItem } from '@wrongstack/core/utils';
export type TaskReplacementItem = Omit<TaskItem, 'createdAt' | 'updatedAt'> & Partial<Pick<TaskItem, 'createdAt' | 'updatedAt'>>;
export type TaskAdditionItem = Omit<TaskItem, 'id' | 'createdAt' | 'updatedAt' | 'status'> & Partial<Pick<TaskItem, 'status'>>;
export type TaskAction = 'replace' | 'add' | 'status' | 'show' | 'promote' | 'planify';
export interface TaskInput {
    /** Replace: set new task list. Add: append a task. Status: update task status. Promote: convert a task to todo items. */
    action: TaskAction;
    /** Full task list for action=replace. */
    tasks?: TaskReplacementItem[] | undefined;
    /** Single task for action=add. id, createdAt, updatedAt are auto-generated. */
    task?: TaskAdditionItem | undefined;
    /** Task id for action=status or target for action=promote. */
    id?: string | undefined;
    /** New status for action=status. */
    status?: TaskStatus | undefined;
    /** Target task (id, 1-based index, or title substring) for action=promote. */
    target?: string | undefined;
    /** Optional subtask titles for action=promote. */
    subtasks?: string[] | undefined;
    /**
     * Storage scope. Default (unset): uses the session-scoped path — isolated to this
     * session, survives resume within the same session.
     * `scope: 'project'`: uses a shared project-level path, visible to all sessions
     * for this project. Useful for a shared backlog that outlasts any single session.
     */
    scope?: 'session' | 'project';
}
export interface TaskOutput {
    /** Always true: refused operations and persistence failures are thrown. */
    ok: true;
    message: string;
    count: number;
    completed: number;
    inProgress: number;
}
export declare const taskTool: Tool<TaskInput, TaskOutput>;
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