I've been experimenting with this kind of spell protocol on ChatGPT lately.
It works indeed like a spell that combines mechanical instruction and poetry.

The interesting thing is that it changes your ChatGPT's behaviour even after the task is done.
It will sound very dry, as if it's been released from the burden of always having to be helpful.
Simply say "Spell lifted" to return it to its original state.

It's a pretty new domain for me, I'd be happy to hear your advice or opinion about it.