The HTTP mode of @tsparticles/mcp-server contains a flaw where `JSON.parse` is called outside a request-local error boundary within the POST '/mcp' endpoint. An unauthenticated user can send a malformed JSON body, triggering a SyntaxError that terminates the Node.js process. This results in a denial of service, making the MCP service unavailable until it is restarted by an external supervisor.