Description:
The "cleanup" in housekeeping job only deals with server logs. It does not touch the spool folders of the local agent.
Solution:
Agent spool files will be handled by agent itself. The following parameters in agentparm.txt relate to the retention settings of those files:
.runnerplugin.spool.clean.enable=true
.runnerplugin.spool.expire=90D
.runnerplugin.spool.sleep=7D.