TL;DR: Scrum Sprint Planning Checklist
A sprint planning checklist? How dare you: Agile is a mindset, not a methodology. It is a journey, not a destination. There is no one-size-fits-all-and what else could you possibly cover with a checklist, the mother of all standardized processes?
Well, it always depends on the purpose of a tool's application. Read more why scrum checklists are a handy tool if applied at an operational, hands-on level, reducing your cognitive load and freeing up time for more relevant things.