fswatch + xargs work with almost any command but "open -a Yoink"

[hugows]

Hello,

I'm trying to understand why the following happens (Mac), if anyone can help me. I wrote this command so what new files uploaded to the current folder were automatically added to yoink (a clipboard manager):

fswatch -0 . | xargs -0 -n 1 -I {} open -a Yoink {}

But, only with this specific command, this command will actually run every second once fswatch is triggered with a new file?

If I use:

fswatch -0 . | xargs -0 -n 1 -I {} say "new file"

it works (runs once). If I run:

fswatch -0 . | xargs -0 -n 1 -I {} code {}

it works, launching VsCode once with that file.

Any idea what could be going on?

[hugows]

Probably sopmething with Yoink changing file attributes every time the file is opened. Had to use another tool with a polling monitor.