Is there a rubric for what ingredients go into a Chinese stir fry?
Is there a rubric for what ingredients go into a Chinese stir fry?

Usually, some optional mixture of liquids, vegetables, noodles, fruits, and meats.
A bit of a facetious answer, but really- stir frying is just a method of cooking food.
While there are certain ingredients that we usually associate with stir frying, the existence of a 'mother stir fry recipe' is about as real as a 'mother grilling recipe', or a 'mother microwaving recipe'. It's silly to say, isn't it? You can grill whatever you want, however you want.
So why do two different recipes have minor, small variations?
Well, because they're different recipes. Those chefs just decided that's what they wanted their recipe to be, so it is.
Your implicit follow-up question seems to be &quot;Are those small differences enough to make a difference?&quot; and of course, as always, the answer is 'it depends.' The difference in 1/4 cup of Shaoxing wine to 1/2 teaspoon of rice wine? That's a pretty huge difference. You'll taste that. You might not know what difference you're tasting, but that's not the goal, is it? Just the fact that it's different is enough for it to be, well, a different recipe.
If you look around enough, I'm sure you'll find two recipes that are essentially identical with different names. That's okay too, isn't it? Two different people could eat the exact same thing and experience the taste of that in different ways, and thus name it two different things. If a dish contains hot peppers and garlic in equal measure, one person might call it Spicy Pepper Dish and another person might call it Sweet Garlic Dish. They're both valid names.
Hope my long rant was at least a little bit helpful. Thanks.