Yes, it’s a minor league deal, and that’s because… well, we just don’t know what state his shoulder is in. But it is a low-/no-risk deal fro the Braves, and the chance of a road back for Walden.
Walden ran into trouble almost as soon as he became a Cardinal (as part of the Jason Heyward/Shelby Miller trade). He was lights-out for them… for all of 10 innings/12 appearances. Then the troubles began.