Shipping a game with an in-game Lua interface and custom editor tools

I wish to make a game which provides the ability to program the game using LuaMachine (Github) , possibly even a light editor that i would write myself. The EULA says:

Engine Tools"means (a) editors and other tools included in the Engine Code…

So how do I know if any part of the Engine code is a tool or not? Can i simply expose the Unreal Engine 4 API to Lua code? I also don’t intend to create standalone products.