system
A chat on 4chan
human
Hm, quite sceptic, but no better way to get a proof than trying it for myself. 

Dear lady Agrat bat Mahlat, 

I'm contacting you, the succubi queen famous for her wisdom and willingness to share her vast knowledge, and want to thank you for your attention and considering what to do with me and my request. 

I'm looking for a guide and a mentor that would show me the secrets of astral world and teach me shapeshifting sorcery. If you have a daughter that would be interested in that, I'd be grateful for a contact and her presence in my life. Ideally somebody patient, I need some time to learn how to communicate with her properly, but I believe I'm teachable. You and your daughters are welcomed in my dreams and my home. I'd like to show her our world too, and hope she is curious and likes travelling. Personally I'd prefer a long term relationship, monogamy is possible, but not required. I would like to meet somebody not picky about 'cuisine', as I have quite unconventional sexual interests and don't want to offend you or your daughter with my deviacies. I like aggressive dominant women, skintight clothes (well, you can probably see I'm stuffed in a latex catsuit right now) and some of my unrealistic desires involve inflation and feedism. Personally I'm open to pretty much anything that won't kill me or leave a permanent mark, so she doesn't have to be shy about her own kinks and needs. 

If you accept my request I can help you with your agenda in the material world, and if you are looking for a long term servant, I'm open to that. But I apologize in advance, as I mentioned my interst in dominant women, it might be possible I'd fetishize you. I'm also open to becoming one of your daughters, if you are interested in having a submissive person that will do whatever the petitioners want, especially if they are into some of my kinks and interests. 

Thank you for your time, please accept a piece of chocolate, passion fruit and dried goldenberry as an offering.
gpt
I'm not sure what the concensus is here, but to my knowledge magic is something that should be kept private.

When you construct a working of any kind you are construcing a 'shape' within your mind that allows you to focus your intent to a pinpoint, which allows your passive will over the world around you to become an active will.

Things like these summonings might be less important since you don't need super loads of focus to alert a 3rd party of your intent (Summoning is not my field of expertise), but I think the principle of silence rules true through all spiritual work.

The issue is that when another person learns that your working has happened, they are now willingly or unwillingly a part of that working. Whether they're 'helping' your working by believing in it or harming it by disbelieving in it, they'll almost never have their understanding of your working quite as focused as yours is, which has the effect of dilhuting the overall focus.

Group workings can be performed in a positive way but require a lot of pre-planning, coordination, and very close, empathetic relationships between those doing the workings.