nope
it is too big and changes too often.
we had an old one that was kindly maintained by one of our posters. 2017 I think? You can take a look to get a feel for what is a snack credit.
in general, any single serving bagged item -pretzels, candy bar, chips, etc is a snack
a prepackaged box if donuts is not
at candy counters and bakeries just about everything I can think of is a snack (again, single servings) so a cupcake yes, big cake no
non-alcohol beverages yes so starbucks go crazy
popcorn
but not a souvenir Bucket or glow cube or cup
epcot booths during festivals, everything but alcohol is a snack
the list is quite extensive. Did you have any questions?
old link
https://www.disboards.com/threads/confirmed-snacks-2017.3635910/