import type { EventBus } from "../event-bus.js";
/** Shared with the optional Intercom/subagent companions. */
export declare const SUBAGENT_TERMINAL_ORDERING_BARRIER_EVENT = "subagent:terminal-ordering-barrier";
/** Trusted runner metadata; never inferred from model-provided task IDs or labels. */
export interface TaskCompletionSource {
    readonly runId: string;
    readonly intercomTarget: string;
}
/** Notification delivery owns this wait. It must never reject a runner's execution result. */
export declare function flushTaskCompletionMessages(events: EventBus, source: TaskCompletionSource, completionId: string): Promise<void>;
//# sourceMappingURL=completion-ordering.d.ts.map