Agent skill · operations · nousresearch
minecraft-modpack-server
Host modded Minecraft servers (CurseForge, Modrinth).
Why this skill is useful
Provides specific commands and configurations for setting up a modded Minecraft server that the AI wouldn't reliably generate on its own.
What it needs
Requires openjdk-17-jre-headless, openjdk-21-jre-headless, openjdk-8-jre-headless installed locally. About 3k tokens when loaded. Last updated 2026-08-07. 226,679 stars on the source repository.
What this skill does
Minecraft Modpack Server Setup When to use User wants to set up a modded Minecraft server from a server pack zip User needs help with NeoForge/Forge server configuration User asks about Minecraft server performance tuning or backups Gather User Preferences First Before starting setup, ask the user for: Server name / MOTD — what should it say in the server list? Seed — specific seed or random? Difficulty — peaceful / easy / normal / hard? Gamemode — survival / creative / adventure? Online mode — true (Mojang auth, legit accounts) or false (LAN/cracked friendly)? Player count — how many players expected? (affects RAM & view distance tuning) RAM allocation — or let agent decide based on mod count & available RAM? View distance / simulation distance — or let agent pick based on player count & hardware? PvP — on or off? Whitelist — open server or whitelist only? Backups — want automated backups? How often? Use sensible defaults if the user doesn't care, but always ask before generating the config. Steps 1. Download & Inspect the Pack Look for: startserver.sh, installer jar (neoforge/forge), userjvmargs.txt, mods/ folder. Check the script to determine: mod loader type, version, and required Java version. 2. Install Java Minecraft 1.21+ → Java 21: sudo apt install openjdk-21-jre-headless Minecraft 1.18-1.20 → Java 17: sudo apt install openjdk-17-jre-headless Minecraft 1.16 and below → Java 8: sudo apt install openjdk-8-jre-headless Verify: java -version 3. Install the Mod Loader Most server packs include an install script. Use the INSTALLONLY env var to install without launching: This downloads libraries, patches the server jar, etc. 4. Accept EULA 5. Configure server.properties Key settings for modded/LAN: Performance settings (scale to hardware): 6. Tune JVM Args (userjvmargs.txt) Scale RAM to player count and mod count. Rule of thumb for modded: 100-200 mods: 6-12GB 200-350+ mods: 12-24GB Leave at least 8GB free for the OS/other tasks 7. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills nousresearch/minecraft-modpack-server