For one-x agent we don’t have a separate msi file for citrix like we have in case of one-x communicator. Below is the link for the document which has steps for silent installation of one-x agent. You can follow the same steps to do the installation of one-x agent on citriz xen application and then configure one-x agent as published application for citrix users.
https://downloads.avaya.com/css/P8/documents/100141166 Pg 21
ou can use the OneXAgentSetup.exe setup to install Avaya one-X Agent 2.5 with the default options or with specific options, as described in the following procedures.
1. Open the command prompt and navigate to the folder where you have copied the Avaya one-X Agent Installation Software that you downloaded from the Avaya distribution site.
2. To install Avaya one-X Agent with default options, run the following command from the command prompt: -
OneXAgentSetup.exe /qn