Activiy Log Watcher - seeking advice for how to use this
Using Jamroom
I think the module was created to allow developers greatest space of movement in that 'How' its supposed to be used is left to them.
Think the premise is: The activity log exist, it contains stuff, if you want to do stuff when stuff is put there, use this module.
There already exists a feature to log "Page Not Found" to the activity log, its at
MODULES -> CORE -> SYSTEM CORE -> ACTIVITY LOG -> log 404 Not Found
Turn that on and you'll see any URL that a customer lands on that results in a Not Found error.
Be aware that bots scan sites so you'll probably see a lot of:
your-site.com/xml_rpc.php
your-site.com/wp_admin
The way a developer might use it could be to add a log to the activity log:
jrCore_logger('MAJ', 'Something happened that I want to know about');