Mob Skills
A library mod that helps control mob spawning in KubeJS.
About this Mod
Mob Skills
A library mod to control mob spawning using skill-based restrictions created in KubeJS scripts. If you've seen Mob
Stages in 1.12, then you have a rough idea of what this mod does. Out of the box, it provides a registry for tracking
mob spawning restrictions and uses it whenever a mob spawn is attempted.
xSkills Mods
Player Skills
| Block Skills
| Dimension Skills
| Fluid Skills
| Item Skills
| Mob Skills
Concepts
This mod leans extensively on Player Skills by creating and consuming the Skill-based Restrictions.
Caveats
Because of the way we're handling spawn conditions, if you are using an unless condition, you should not also
manipulate usable in the same restriction. Just keep the two restrictions separate.
More Information
Documentation, examples, and more can be found in the readme on Github.
Modpacks
Want to use this in a modpack? Great! This was designed with modpack developers in mind. No need to ask.
Available Versions
How to Install Mob Skills on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.19.3).
Install Mod
Open the mod browser in the dashboard and search for "Mob Skills". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.19.3, 1.19.2, 1.18.2
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Mob Skills server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.19.3). You can switch loaders with one click in the panel.
Is Mob Skills compatible with fabric and forge?
Mob Skills officially supports fabric, forge for Minecraft 1.19.3, 1.19.2, 1.18.2. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Mob Skills – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mob Skills consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Similar Mods
Rent Modded Server
Install Mob Skills with just one click on your server.