ssh-agent(1) on macOS
The text c4250757fb71, as macOS 12.5, macOS 12.4, macOS 12.3, macOS 12.2, macOS 12.1, macOS 12.0.1 shipped it.
OpenSSH authentication agent
Flags it lists
-
-D -
-E -
-P -
-a -
-c -
-d -
-k -
-s -
-t