I want to declare a new item group for pistons so it can be recognized as another sticky piston or piston in general in recipes. I've made the JSONs and file paths, and I was wondering if I need to do any more. I saw code for tags in the documentation, but I wasn't sure if I needed code if the tags are only for recipes. Thanks in advance.

9 hours ago, diesieben07 said:

That's not how tags work. If the tag is not used by the recipe, it won't have any effect.

Right, but in the case of some other mod using a piston in a recipe, I want my custom piston to be recognized as a piston, too. I want it to work like the “planks” tag, where you can use any type of plank to make a chest, for example.

3 hours ago, diesieben07 said:

Then the other mod would have to use that piston tag.

So it would be pointless unless this small mod somehow becomes incredibly popular. Thank you.