Execute Code via Org-mode Links

I was recently browsing the org-mode link documentation to see how I could link to my Gnus email inbox¹. Looking through, I noticed a couple of interesting link capabilities I had not known about before:

shell:ls *.org	A shell command
elisp:org-agenda	Interactive Elisp command
elisp:(find-file-other-frame "Elisp.org")	Elisp form to evaluate

Having the ability to run arbitrary shell commands and Elisp code via an Org-mode link seems very powerful. This is mainly a note-to-self to remember this capability. I will report back if/when I find a good practical application for this.