ssh-agent(1) on macOS
The text f7966137c7b8, as macOS 15.6, macOS 15.5, macOS 15.4, macOS 15.3, macOS 15.2, macOS 15.1, macOS 15.0, macOS 14.6, macOS 14.5, macOS 14.4 shipped it.
OpenSSH authentication agent
Flags it lists
-
-D -
-E -
-O -
-P -
-a -
-c -
-d -
-k -
-s -
-t