Your question is Clarifying Your Role on a Team. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What do you do, and what does the team need from you? Walk me through a specific project where you had to define your role clearly, align expectations with others, and make sure the team got what it needed from you.