Create custom text transformation In a text box, I can right click and select Transformations > Make Uppercase.

Is it possible to create my own text transformations? a super simplified example would be to wrap the selected text in parenthesis.
Make an Automator service which accepts text and use the following AppleScript action:

      

on run {input}
    return "(" &amp; (input as string) &amp; ")"
end run