export interface Task {
    id: string;
    text: string;
    why: string;
    done_when: string;
    priority: 'high' | 'medium' | 'low';
    status: 'open' | 'done' | 'pending';
    template: string;
    plan: string;
    project: string;
    /** Parent task id (DR-0014 task tree). Children created by decompose --keep-parent point
     *  at the retained parent, which becomes the join/acceptance node via depends_on. */
    parent: string | null;
    depends_on: string[];
    gpu: string | null;
    gpu_count: number;
    blocked_by: string | null;
    claimed_by: string | null;
    claimed_at: string | null;
    paused: boolean;
    approval_needed: boolean;
    approved_at: string | null;
    not_before: string | null;
    completed_at: string | null;
    completed_note: string | null;
    pending_at: string | null;
    /** Provenance for session→task wake (Problem 1). Captured from CORTEX_* / channel env when a
     *  task is created from within a running session or agent. On task.completed, if origin_channel
     *  is set (and no thread is waiting on this task), the originating session is woken. */
    origin_session_id: string | null;
    origin_channel: string | null;
    origin_thread_id: string | null;
}
export interface LockState {
    owner: string;
    acquired_at: string;
    expires_at: string;
    note?: string;
}
declare const PRIORITY_ORDER: Record<string, number>;
declare const VALID_STATUSES: Set<string>;
declare function rawToTask(raw: any, project: string): Task;
declare function parseTasksFile(content: string, project: string): Task[];
declare function parseTasksFileWithLock(content: string, project: string): {
    tasks: Task[];
    lock: LockState | null;
};
declare function taskToYamlObj(task: Task): Record<string, any>;
declare function serializeTasksFile(tasks: Task[]): string;
declare function serializeTasksFileWithLock({ tasks, lock }: {
    tasks: Task[];
    lock?: LockState | null;
}): string;
declare function getTasksYamlPath(project: string): string;
declare function scanAllTasks(project?: string | null): Task[];
declare function completedHashSet(tasks: Task[]): Set<string>;
declare function isActionable(task: Task, completedHashes?: Set<string> | null): boolean;
declare function scanAvailableTasks(): Task[];
declare function getTaskStats(): any;
declare function taskStatuses(task: Task, completedHashes?: Set<string> | null): Set<string>;
declare function taskTags(task: Task): Set<string>;
declare function filterTasks(tasks: Task[], args: any, completedHashes?: Set<string> | null): Task[];
declare function getTaskStatsFromTasks(tasks: Task[]): any;
declare function printTaskListToString(tasks: Task[], actionableHeader?: boolean, showDeps?: boolean): string;
declare function printStatsText(stats: any): string;
declare function showPayload(task: Task, tasks: Task[]): {
    task: Task;
    actionable: boolean;
    dependents: string[];
    depends_on: Task[];
};
declare function depsPayload(task: Task, tasks: Task[]): {
    task: Task;
    actionable: boolean;
    dependents: string[];
    depends_on: Task[];
};
export { PRIORITY_ORDER, VALID_STATUSES, completedHashSet, depsPayload, filterTasks, getTaskStats, getTaskStatsFromTasks, getTasksYamlPath, isActionable, parseTasksFile, parseTasksFileWithLock, printStatsText, printTaskListToString, rawToTask, scanAllTasks, scanAvailableTasks, serializeTasksFile, serializeTasksFileWithLock, showPayload, taskToYamlObj, taskStatuses, taskTags, };