I'm an undergrad student, and I intend to start assisting a senior PhD student with her research work. I'm really interested in the work (definitely don't want to let go of this opportunity), but I'm unsure if the position being offered to me is official, i.e. if I would be a research assistant or something, so to speak.
I was told by the PhD that if I'm to accept, she will have to seek permission from her PI / keep the PI in the loop - which makes me feel that it's probably official but I'm not sure.
What's a polite way of asking for the necessary clarifications?