import { type CodexRealtimeInitialItem } from "@opengeni/codex";
export type SessionRealtimeHistoryRow = {
    position: number;
    item: Record<string, unknown>;
};
export type SessionRealtimeContinuityEntry = {
    role: "user" | "assistant";
    text: string;
};
/**
 * Project ordinary model-facing conversation truth into Frameless V3 startup
 * items. Only complete role-bearing messages are legal V3 initial items;
 * reasoning, tool protocol records, images, and raw provider metadata are never
 * copied into the browser-owned call bootstrap.
 *
 * The newest complete tail wins deterministically. This mirrors Codex's exact
 * byte/4 token estimate and hard 128-item/8,192-token limits.
 */
export declare function projectSessionRealtimeInitialItems(rows: readonly SessionRealtimeHistoryRow[], continuityEntries?: readonly SessionRealtimeContinuityEntry[]): CodexRealtimeInitialItem[];