Cyanide
Modby AlcatrazEscapee
Reduces data pack world generation pain by providing useful, informative error messages.
Type
Mod
CurseForge Downloads
647,298
CurseForge ID
Modrinth Downloads
60,801
Modrinth ID
Last Updated
Nov 6, 2026
Description
Cyanide
cyanide seems to be something that will make me want to drink cyanide a lot less - Starmute, world generation datapack wizard.
A mod which substantially improves Minecraft's data driven world generation error detection and recovery mechanisms. It removes unnecessary stack traces and generates user-friendly error messages for most common issues with world generation datapacks. For some examples of what improvements Cyanide makes to error reporting, see the below list:
All errors identify the exact file, and source datapack where the error originated. Some error messages are improved for clarity or have additional context added where possible.
Parsing Error: Value provider too low (must be >= 0), got -1
at 'placement'
at 'cyanide:worldgen/placed_feature/ore_tin' defined in 'file/Test.zip'
The "Unbound values in registry" error tracks what files were referencing it.
Missing File Error: 'cyanide:worldgen/configured_feature/big_ores' was referenced but not defined
at 'cyanide:worldgen/placed_feature/big_ores' defined in 'file/Test.zip'
Illegal JSON will show the exact file location, along with the surrounding context of where it failed to parse.
Syntax Error: Expected ':' at line 3 column 13 path $.config
at:
{
"type": "minecraft:big_flowers",
"config" {
^
here
at 'cyanide:worldgen/configured_feature/flowers' defined in 'file/Test.zip'
"Feature Cycle" errors (where features are defined in different order within different biomes) trace and report the exact cycle found
A feature cycle was found.
Cycle:
At step 0
Feature 'minecraft:lake_lava_underground'
must be before 'minecraft:lake_lava_surface' (defined in 'minecraft:ocean' at index 1, 2 and 1 others)
must be before 'cyanide:big_ore' (defined in 'minecraft:ocean' at index 2, 3)
must be before 'cyanide:small_ore' (defined in 'minecraft:plains' at index 0, 1)
must be before 'minecraft:lake_lava_underground' (defined in 'minecraft:ocean' at index 0, 1 and 1 others)
N.B. Old Fabric Versions
Fabric versions older than 1.20 can be found on the Cyanide - Fabric project, which is no longer being maintained. Moving forward, both Forge and Fabric versions will be uploaded to this project, as per CurseForge's project guidelines.
Recommended Gear
AffiliateHardware and extras that pair well with this mod.
As an Amazon Associate I earn from qualifying purchases.
Similar Mods
DarknessLib
Library mod for handling light calculations and similar things
MMV - Moog's Missing Villages
This is a mod which adds in the missing jungle and swamp villages in a vanilla friendly way and style
Fast Scrolling
Let you scroll faster when holding CTRL
Legendary Survival Overhaul
Temperature, thirst, limbs management, health overhaul for Survival game !
The Irregular Chef! (A Farmer's Delight Add-on)
A compat mod that adds new recipes to Farmer's Delight.
PrimalCore
Early Game Survival, Expanded Nether, Monsters and Mystery
Included in Modpacks (28)
Most downloaded
Secure Contain Profit
On Ancient Ground
Alyrion VII