export interface TurnSteerItem {
    id: string;
    text: string;
    at: number;
}
type LiveSteerFn = (text: string) => Promise<void>;
export declare function threadSteerKey(platform: string, channelId: string, threadId: string): string;
export declare function formatMidTurnSteer(text: string): string;
export declare function enqueueTurnSteer(key: string, text: string): TurnSteerItem;
export declare function peekTurnSteers(key: string): TurnSteerItem[];
export declare function consumeTurnSteers(key: string): TurnSteerItem[];
/** Register the live harness.steer wrapper. Drains any queued items. */
export declare function registerLiveSteer(key: string, fn: LiveSteerFn): () => void;
export declare function hasLiveSteer(key: string): boolean;
/** Push into the live harness, or park until one registers. */
export declare function dispatchTurnSteer(key: string, text: string): Promise<'live' | 'queued'>;
/** Test-only. */
export declare function _resetTurnSteer(): void;
export {};
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