export declare const HEARTBEAT_OK = "HEARTBEAT_OK";
export declare const NO_REPLY = "NO_REPLY";
export declare const DEFAULT_ACK_MAX_CHARS = 300;
/**
 * Strip HEARTBEAT_OK token from model text.
 * Supports plain text, Markdown bold, inline code, trailing punctuation.
 */
export declare function stripHeartbeatToken(text: string): {
    stripped: string;
    hadToken: boolean;
};
/**
 * Whether the reply should not be sent to the user: HEARTBEAT_OK present and little else.
 */
export declare function shouldSilence(text: string, ackMaxChars?: number): boolean;