CA Workload Automation Agent for UNIX, Linux or Windows Implementation Guide.
Chapter 9: Setting Up Security
Under the heading: Configure the security.txt File

Small excerpt:

operation

Specifies the FTP command. Valid commands are as follows:
list-Changes directory and list files (CD, LIST, NLST)
read-Retrieves the file (RETR)
write-Stores the file or makes a directory (STOR, STOU, RNFR, RNTO, MKD)
delete-Deletes the file or directory (DELE, RMD)
These commands apply to the agent as FTP server. For FTP jobs, only read and write commands apply.

Release:
Component: ATSYS