Function getClientIdentifier

src/utils/client-identifier.ts:13–22

(extra: any)

 * @returns Client identifier string (User-Agent or "stdio")
 */
export function getClientIdentifier(extra: any): string {
  // MCP SDK 1.23+ passes requestInfo in extra.requestInfo for HTTP transport
  const userAgent = extra?.requestInfo?.headers?.["user-agent"];
  if (userAgent) {
    return userAgent;
  }

  // Default for STDIO mode
  return "stdio";
}