import type { SessionControl, SessionInputQueue, TurnSelection } from "#execution/session/input-queue.js";
import type { SessionInboxReader } from "#execution/session-inbox/inbox.js";
import type { SessionStateCursor } from "#execution/session/state-cursor.js";
import type { WorkflowToolRunMessage } from "#execution/tools/workflow/messages.js";
export type NextTurnInstruction = {
    readonly kind: "workflow";
    readonly message: WorkflowToolRunMessage;
} | {
    readonly kind: SessionControl;
} | {
    readonly kind: "closed";
} | {
    readonly kind: "cancel-turn";
}
/** `session.cancel()` while no turn runs, but tasks are working. */
 | {
    readonly kind: "cancel-working-tasks";
} | TurnSelection;
/**
 * Waits for the next input the parked owner must act on. Fully routed
 * descendant deliveries leave nothing for the parent, so the wait continues.
 */
export declare function nextTurnDelivery(input: {
    readonly inbox: SessionInboxReader;
    readonly cursor: SessionStateCursor;
    readonly hasWorkingTasks: () => boolean;
    readonly queue: SessionInputQueue;
}): Promise<NextTurnInstruction>;