import type { TSchema } from "@sinclair/typebox";
export declare const ProtocolSchemas: Record<string, TSchema>;
export declare const PROTOCOL_VERSION: 3;
/** The inclusive range of protocol versions this build can speak. Equal to
 * PROTOCOL_VERSION today (only v3 exists), but expressing it as a WINDOW lets a
 * future version be added without a synchronized outage: the handshake
 * negotiates the highest version both sides support instead of demanding an
 * exact match (which closed every mismatched client with 1002). */
export declare const MIN_PROTOCOL_VERSION = 3;
export declare const MAX_PROTOCOL_VERSION: number;
/** Highest protocol version supported by BOTH this server ([MIN,MAX]) and a
 * client advertising [clientMin, clientMax]; null when the ranges don't overlap. */
export declare function negotiateProtocolVersion(clientMin: number, clientMax: number): number | null;