Happy friday Eve ♡ question for the community :)

I love long standing dynamics, so I'm always curious to what someones priorities are in regards to foundations in a dynamic. For me I'm very written in regards to plans (writing down the whole vetting process really), but when it comes to specific priorities I'm focused on how we both react to exiting a scene, and how those routines can ground & create trust and comfort. Beyond the safewords and general vetting practices, what are some foundations you highlight immediately when forming a dynamic? Doms or subs feel free to bring input :)