import type { NewSessionDraftEditable } from "../lib/use-new-session-draft.js";
/** Persist exactly the message/options create will submit, without changing the visible editor. */
export declare function newSessionCreateSnapshot(visible: NewSessionDraftEditable, initialMessage: string, policy: Pick<NewSessionDraftEditable, "model" | "reasoningEffort" | "latencyMode">): NewSessionDraftEditable;
export type CreatedSessionRouteAuthority = Readonly<{
    sessionId: string;
    /** Null once draft settlement is durable; navigation may still need retrying. */
    settleDraft: (() => Promise<boolean>) | null;
}>;
type CreatedSessionRouteAttempt = Readonly<{
    sessionId: string;
    /**
     * Reconcile the draft consumed by this create. A conflict is recoverable and
     * must not discard the durable authority of the already-created session.
     */
    settleDraft: () => Promise<boolean>;
}>;
export type RunNewSessionRouteSubmissionOptions = {
    authority: CreatedSessionRouteAuthority | null;
    create: () => Promise<CreatedSessionRouteAttempt | null>;
    navigate: (sessionId: string) => Promise<void>;
    onAuthorityChange: (authority: CreatedSessionRouteAuthority | null) => void;
};
/**
 * Owns the post-create boundary for the sessions-index route.
 *
 * Session creation is the authoritative commit. Once it succeeds, retain its
 * exact ID until navigation succeeds. Draft settlement remains attached to that
 * authority until it is durable; a later retry must settle, then navigate to the
 * same session rather than issuing another create with a fresh idempotency key.
 */
export declare function runNewSessionRouteSubmission(options: RunNewSessionRouteSubmissionOptions): Promise<boolean>;
export {};