I frequently use
drush scr for little tasks throughout my day. Sometimes these end up a proper commands in my environment, but more often they are just standalone things.
If I have
@foo set up in my drush aliases with
remote-host, and try to run a local script, I get
$ drush @foo scr ./foo.php
Unable to find any of the following: [error]
Can this command run a local script on a remote site?