This is probably fairly simple to code but I have no experience so ples halp
Use of the mod:
There's a kitpvp server I play on that has kits with a 15 minute cooldown, each kit has a certain amount of regular golden apples, I want to be able to AFK and use a mod to preform a series of commands to redeem all of my kits every 15 minutes and 10 seconds, this way I can turn it on and go to bed then wake up in the morning and have my inventory filled. If you need any other information ask but I think it's pretty straight forward
You wouldn't need a specific mod for this, you can use a 3rd party program to type in the stuff for you after a time delay. I personally use the logitech software for stuff like this, but that requires their hardware. You can probably find something else that'd do it, it'd be easier then getting a mod made.