Hey Roger,
You're running an Automator workflow?
You didn't post the workflow file (zipped) or show an image of it, so there's no way we can tell what you're doing.
If you review your first post you'll see that there's no possible way we could have figured out what you were doing from the given description.
If you haven't read this it's worth a couple of minutes of your time.
Tip: How Do I Get The Best Answer in the Shortest Time?
I'm glad you discovered a way to perform your task with Keyboard Maestro.
Note there are also search and search-replace actions.
And Keyboard Maestro has its own JXA action.
// --------------------------------------------------------
// Get the Clipboard
// --------------------------------------------------------
(() => {
const currentApp = Application.currentApplication();
const stdAdditions = (currentApp.includeStandardAdditions = true, currentApp);
let clipboardStr = stdAdditions.theClipboard();
return clipboardStr;
})();
// --------------------------------------------------------
// Set the Clipboard
// --------------------------------------------------------
(() => {
const currentApp = Application.currentApplication();
const stdAdditions = (currentApp.includeStandardAdditions = true, currentApp);
let theStr = "Now is the time for all good men to come to the aid of their country."
currentApp.setTheClipboardTo(theStr);
})();
// --------------------------------------------------------
So – as you can see there are many options.
-Chris