/**
 * Session quiescence shared by every consumer that has to know when a session is truly done:
 * not just yielded, but with nothing live, admitted, queued, scheduled or running in the
 * background that could inject a message and wake it again.
 */
import type { AgentSession } from "./agent-session.js";
/** Session surface the settle predicate reads. */
export type SessionSettleState = Pick<AgentSession, "isStreaming" | "hasAdmittedSubmission" | "queuedMessageCount" | "hasPendingAsyncWork">;
/** {@link SessionSettleState} plus the owner-scoped background drain. */
export type SessionSettleHost = SessionSettleState & Pick<AgentSession, "settleAsyncWork">;
/**
 * True when no run is live, admitted or scheduled, no steer/follow-up is queued, and no
 * background job or delivery can re-wake the session. `scheduledTurn` reports a turn the session's
 * owner has decided to start but not yet admitted (for example a scheduled goal continuation).
 */
export declare function isSessionSettled(session: SessionSettleState, scheduledTurn?: () => boolean): boolean;
/**
 * Wait out owner-scoped background work that can still wake the session, then report whether
 * the session is settled. Only drains while no live or admitted run owns the session (that run's
 * own terminal `agent_end` is the next check). `isCurrent` is rechecked after every await: once
 * it turns false the caller has been superseded and the answer is false. True means the activity
 * is still current and {@link isSessionSettled} holds right now.
 */
export declare function waitForSessionSettlement(session: SessionSettleHost, options: {
    isCurrent: () => boolean;
    scheduledTurn?: () => boolean;
}): Promise<boolean>;