import type { ActivityObserverConfig } from "#channel/types.js";
import type { AnswerHookRoute } from "#harness/proxy-input-requests.js";
import type { ActivityEventV1 } from "#protocol/activity.js";
import type { WorkflowToolRunRequestMessage, WorkflowToolRunReport } from "#execution/tools/workflow/messages.js";
import { type TaskView, type TaskInboundAnswerInput } from "#tasks/types.js";
type TaskParentNotification = {
    readonly view: TaskView;
    readonly update?: {
        readonly report: WorkflowToolRunReport;
        readonly index: number;
    };
} | {
    readonly taskId: string;
    readonly request: WorkflowToolRunRequestMessage;
};
/** Delivers task outcomes, updates, and requests through the parent's session inbox. */
export declare function notifyTaskParent(input: TaskParentNotification & {
    readonly token: string;
}): Promise<void>;
/** Emits task activity without storing a second task-state record. */
export declare function emitTaskActivityStep(input: {
    readonly activityObserver?: ActivityObserverConfig;
    readonly view: TaskView;
}): Promise<void>;
export declare function projectTaskActivity(input: {
    readonly activityObserver: ActivityObserverConfig | undefined;
    readonly settledAt: string;
    readonly view: TaskView;
}): readonly ActivityEventV1[];
/**
 * Forwards answered input to the blocked child.
 *
 * The task run performs this itself so the child unblocks and the
 * view leaves `input_required` under one durable decision. Returns
 * `unreachable` when the child hook is already gone, which leaves the
 * outstanding batch untouched rather than reporting a task as working
 * when nothing received the answer.
 */
export declare function deliverTaskInputResponsesStep(input: {
    readonly answer: TaskInboundAnswerInput;
    readonly answerHook?: AnswerHookRoute;
    readonly requestIds: readonly string[];
}): Promise<"delivered" | "unreachable">;
export {};