/** New physical Sends can acquire a paginated task anchor before task input. */
export declare function codexPhysicalSendUsesPaginatedWatch(agentVersion?: string): boolean;
export declare function codexManagedSendRequiresLegacyHistory(agentVersion?: string): boolean;
/** Managed Monitor still consumes legacy rollouts, never paginated thread data. */
export declare function assertCodexManagedSendHasLegacyHistory(input: {
    agentVersion?: string;
    verifiedLegacyRootCount: number;
}): void;
export type CodexUserExplicitSendWatchSource = {
    source: "codex_paginated";
} | {
    source: "codex_rollout";
} | {
    source: "none";
    reasonCode: "codex_paginated_history_anchor_unavailable";
    warning: string;
};
/** A missing rollout on paginated clients is not a future-rollout promise. */
export declare function selectCodexUserExplicitSendWatchSource(input: {
    agentVersion?: string;
    /** Count of independently verified legacy open-root rollouts, if observed. */
    legacyRootCount?: number;
    /** True only after capturing an exact, validated paginated history anchor. */
    paginatedAnchorAvailable: boolean;
}): CodexUserExplicitSendWatchSource;
export interface TerminalSendFallbackWatchReceipt {
    callback_expected: boolean;
    callback_mode: "terminal_watch";
    watch_id: string;
    watch_mode?: "exact_task" | "terminal_activity";
    confidence?: "exact" | "best_effort";
}
export declare function terminalSendFallbackWatchPresentation(receipt: TerminalSendFallbackWatchReceipt | undefined): {
    callbackAvailable: boolean;
    receiptFields: Record<string, unknown>;
    summary: string;
    nextAction: string;
};