How should different application types present MCP notifications to users?

Presentation depends entirely on your application type. Command-line applications can simply print messages and progress to the terminal. Web applications can push updates to the browser using WebSockets, server-sent events, or polling. Desktop applications can update progress bars and status displays in their native UI. The MCP server does not prescribe how notifications should be displayed. It only emits the data, and the client application decides the presentation. You can also choose to ignore notifications completely if they are not needed for your use case.