Automator question

I have a working Automator Application that prompts you for a folder containing your images. It then writes (or appends) the non-duplicate filename into the comments field of every image in that folder. It does not presently process sub-folders in that initial directory.

This Automator solution requires two actions:

1. Files & Folders Library > Ask for Finder Items
   1. Start at: Desktop
   2. Type: Folders without Allow Multiple Section
2. Utilities > Run AppleScript
   1. Remove all default content that appears in the added Run AppleScript action
   2. Replace with the code below that you copy/paste into the Run AppleScript action
      1. Click the hammer icon in the Run AppleScript action to compile that AppleScript
3. You can click the Run ▸ button on the Automator application to test it before you save it on your Desktop
4. Quit Automator

Run AppleScript Replacement Code

use scripting additions

property IMG : {"public.image"}

on run {input, parameters}
	
	set imgDir to (item 1 of input) as text
	
	tell application "Finder"
		set imgList to (every item of folder imgDir whose kind contains "image") as alias list
		
		if imgList is {} then return
		
		repeat with anImg in imgList
			set cmt to anImg's comment
			if cmt is "" then
				set anImg's comment to name of anImg
			else if cmt is equal to name of anImg then
				log "duplicate comment"
			else
				set anImg's comment to cmt & return & name of anImg
			end if
		end repeat
	end tell
	return
end run

And the finished Automator solution that was tested on macOS 11.3.1 on an M1 Mac mini:

And Cape Lookout in Oregon.

I provided the code that you would save in an Automator Application, not Folder action.

From the Automator File menu, choose Convert To and select Application, then choose. Save that application to your Desktop as Image_comment, or whatever name you choose. Then you double-click that Automator application on the Desktop and it will prompt you for a folder and do its thing with comments on images.

You are welcome.

Marilyn,

Did you convert your folder action to an Automator application saved to your Desktop, and did it perform as expected when you double-clicked to select the folder containing your images?