/**
 * Forward a JSON-RPC message to the HTTP server and return the response.
 */
export declare function buildMcpRequestHeaders(authToken?: string): Record<string, string>;
export declare const READ_ONLY_TOOLS: Record<string, true>;
export declare function isRetriableSingleRequest(req: unknown): boolean;
export declare function isRetriableRequest(req: unknown): boolean;
export declare function isJsonRpcNotification(message: unknown): boolean;
export declare function isNotificationOnlyMessage(message: unknown): boolean;
/**
 * Attempt to start as a stdio→HTTP bridge.
 * Returns true if the bridge was established, false if fallback is needed.
 */
export declare function tryStdioBridge(): Promise<boolean>;
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