We have this tentative at a canonical answer to authorship standards:
Compiling ethical standards for coauthorship across academic fields and regions
But it's been inactive since 2014. There are many questions that I think should be marked as duplicate of this but the answers are everything but comprehensive. Can we somehow revive this question? Or merge it with better documented threads like these ones:
What are the minimum contributions required for co-authorship
What does author order indicate?
My proposal would be to:
- include the above listed questions (an the one pointed out in comments) in the canonical question for reference
- mark relevant future questions as duplicate of it.