Buffer mode options

[Andrej-Marsic]

Is there a way to not pollute the buffer with the input and just write there the response?
Is it possible to open the buffer in a split as a default?
Is there any chance of reutilising the properties of the original file, like filetype and syntax?

[gsuuon]

None of those are built-in but the prompt mode can be a StreamHandlers table which you can use to do whatever you want with the response. Do you want to turn this into a suggestion?