ErrorKiller

Error Killer

 

One click. Water, pickup, block. Instantly.

 

Error Killer is a lightweight, client-side Fabric mod for Minecraft 1.21.11 that automates one very specific, very fast PvP trick: clearing an obstacle with water and placing your block in its spot in a single tick.

 

The problem

 

You want to place obsidian or a cobweb, but the spot is blocked by something that stops normal placement: a lever, a button, a torch, redstone, or an enemy cobweb. Normally you would have to swap to a water bucket, place water, pick it up, swap back to your block, and place it. Done by hand, that takes long enough for your opponent to react.

 

The solution

 

Hold obsidian or a cobweb and right-click like you always do. If the target spot is blocked by something water can wash away, Error Killer runs the whole sequence for you:

 

Switches to your water bucket and places water. The obstacle is destroyed.

Instantly picks the water back up with the empty bucket.

Switches back to your block and places it.

 

All of it happens within a single tick, so on screen it looks like one smooth action, as if your block just replaced the obstacle.

 

If nothing is in the way, the mod does nothing and vanilla placement works exactly as usual.

 

Features

One-click combo: no new keybinds, you use your normal place-block button

Obsidian and cobweb support

Smart trigger: only activates when the target spot holds something water can remove

Zero interference: vanilla behavior is untouched when the spot is free

Lightweight: no GUI, no config files, no background work

Client-side only: nothing to install on a server

What water can clear

 

Levers, buttons, torches, redstone dust, cobwebs and other non-solid blocks that flowing water would normally destroy.

 

How to use

Put a water bucket anywhere in your hotbar.

Put obsidian or cobwebs in your hotbar and hold them.

Aim at the spot you want to fill and right-click.

 

That's it.

 

Tip: aim at the block behind the obstacle (or next to it), not directly at a lever itself, so the water lands in the right spot.

 

Requirements

 

Minecraft 1.21.11

Loader Fabric (Loader 0.18+)

Dependency Fabric API

Side Client

Java 21

Important: fair play

 

Error Killer automates actions that normally take several manual inputs, and it can give you a speed advantage in PvP. Many servers consider this cheating and may ban you for it. Always read the server rules or ask the staff before using it on multiplayer. You use this mod at your own risk. It works fine for practice in singleplayer and on servers that allow it.

 

FAQ

 

Does it work on servers? It is client-side, so it loads in multiplayer, but whether you are allowed to use it depends entirely on the server's rules.

 

Does it need a config or a keybind? No. It reacts to your normal place-block click.

 

Why didn't it trigger? Check that you hold obsidian or a cobweb, have a water bucket in the hotbar, and that the spot is blocked by something water can remove.

 

Other Minecraft versions? Currently only 1.21.11.

 

Author: ANARCHICZNY_2