It looks like in 10.8 a range of commands were not permitted:
These commands must not be used in a job: copy, repeat, show boot-history, show core-dump, show
events, show job, show tech, sleep, terminal-monitor.
But in a later manual that restriction isn't listed. It might just not be in the manual but a scan of release notes from 10.9 or 10.10 might provide an enhancement.
On the latest release I could do this
switch1(config-job-test_ian502)# show run cur
job test_ian502
10 cli copy running-config tftp://10.10.50.75/test cli vrf default