You can do things like, taking screenshot of a site, resize it to size 1000 x 1000, and look for price changes on the page and get notified via email.
Or ask it to draw svg of a 'pelican riding a bicyle' whenever a new model is released on openai and mail it to you.
Every job runs in its own linux sandbox, so a lot more things are possible.
While Claude's cloud scheduling is limited by a restrictive sandbox and no screenshot or SVG support, cronbox.sh provides a full power environment with unrestricted libraries, curl, and native web capturing.