The documents saved by Stapler are also plain text (JSON). But because the app is trying to be a model citizen in the current model of macOS security/annoyance, it contains the file bookmarks that macOS gives us (which are binary blobs encoded as Base64 text, so incomprehensible to mere humans) rather than the human-readable file paths you might expect. Kind of annoying, but there we go!
The documents saved by Stapler are also plain text (JSON). But because the app is trying to be a model citizen in the current model of macOS security/annoyance, it contains the file bookmarks that macOS gives us (which are binary blobs encoded as Base64 text, so incomprehensible to mere humans) rather than the human-readable file paths you might expect. Kind of annoying, but there we go!