"The ultimate solution to all your Minecraft Command needs"
MCMD refers to Minecraft Commands. This is a project created by @DemonicDemon6 in order to make datapack and Command Block development easy!
There are a ton of generators you can easily use! Some included are: advancements, tellraw, give and loot_tables!
There is also a page with answers to common questions that you may have. Scroll through them to become a better developer