I hear you, but the answers to these questions in my experience are always of the kind "we're looking to hire capable people with skills X, Y, Z for projects A

I hear you, but the answers to these questions in my experience are always of the kind "we're looking to hire capable people with skills X, Y, Z for projects A & B". These don't give you any idea about the health of the company or how precarious your new job will be.