About Exclusions Lib
From ModrinthA library for reducing headaches when working with json, and to give datapack makers new levers to play with!
A library for giving you more levers to use in vanilla json files.
Everything here is only needed on the server, and not the client, so feel free to build your datapacks based off of this!
Current Features: -A new block predicate, exclusions_lib:overlaps_structure: This predicate will take a block position (adjusted by an optional offset field, like most other predicates), and optionally a structures and/or range, and check whether it would overlap a structure. With a structures field, it only checks for certain structures, and with a value for a range (max 32), it will instead check an area around the position.
Use this to stop features from being placed overlapping structures! Or maybe you'd want an ore that only generates near a certain structure?
-Tag Exclusions (NOT IN NEOFORGE VERSION AS NEO ALREADY HAS THESE BUILT IN): Basically a blacklist field for tags. Want to make a tag that contains everything in #minecraft:small_flowers, except for wither roses? But you still want it to be compatible with every other mod that would add new flowers? Just add wither roses with its "excluded" field set to true, and now you've made a "normal flowers" tag! Is very powerful, allowing you to do all sorts of things, like removing other mod's edge case items from your own tags, while still keeping their item in the common tag you're pulling from, or even straight up removing entries from other mods' tags (or vanilla) yourself!
Example Usage, for a tag that will contain everything in #minecraft:small_flowers, EXCEPT for wither roses, along with a couple other things:
"values": [
"#minecraft:small_flowers",
{
"id": "minecraft:wither_rose",
"excluded": true
},
"minecraft:apple",
"minecraft:waxed_exposed_cut_copper_stairs"
]
}```
Highlights
From source dataGame versions
Supports 3 Minecraft versions, the newest being 1.21.6.
Loaders
Runs on Fabric, Forge and NeoForge.
Footprint
Rated a light load on a server.
What kind of mod it is
From the catalogLibraries & compatibility
Foundations and fixes other mods build on. Usually installed because something else needs it.
Runs on your server
From source side supportModrinth lists Exclusions Lib as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- FabricForgeNeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.6 and 2 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
- ✓AuthorAthebyne, as published on Modrinth
- ✓LicenseCC-BY-4.0Free









