MCP Events lets ChatGPT respond to updates from MCP servers

OpenAI's documentation says MCP Events lets ChatGPT subscribe to updates from an MCP server, such as new messages or document comments, and follow a user's instructions when they arrive. The feature is available in Work chats on ChatGPT web and in desktop Work chats with Cloud selected. One user argues event-driven triggers deserve more attention because most people's agents otherwise rely on scheduled runs or wait to be messaged.