minecraft-modpack-server

minecraft-modpack-server is a skill for Claude Code, Codex from NousResearch/hermes-agent. It costs 19 tokens per session (1,876 once invoked), scanned B, original, MIT.

A setup guide for running Minecraft servers with community-made mod packs from CurseForge or Modrinth. It covers server packs and NeoForge or Forge configuration.

In plain words
What is it for?
Use it to configure the server name, world seed, difficulty, game mode, player access, memory, view distance, player-versus-player settings, and backup schedule.
Why use it?
It helps turn a mod pack download into a working multiplayer server and addresses common choices around memory, performance, backups, and access.

Skill for Claude CodeCodex

About the project

Hermes Agent is an AI assistant that learns from its use by creating and improving skills, retaining knowledge, searching past conversations, and adapting to its users. It is for people who want to run an agent through a terminal or messaging platforms while connecting it to different AI models and scheduled tasks.

NousResearch/hermes-agent · 241,505 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/nousresearch/hermes-agent/minecraft-modpack-server
Any agent
npx skills add NousResearch/hermes-agent --skill minecraft-modpack-server
Clone the repo
git clone --depth 1 https://github.com/NousResearch/hermes-agent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for minecraft-modpack-server

README.md
[![agentmods](https://agentmods.dev/badge/skills/nousresearch/hermes-agent/minecraft-modpack-server.svg)](https://agentmods.dev/skills/nousresearch/hermes-agent/minecraft-modpack-server)
Your own site
<a href="https://agentmods.dev/skills/nousresearch/hermes-agent/minecraft-modpack-server"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/minecraft-modpack-server.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,876 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00019 $0.01876
Opus 5 $0.00010 $0.00938
Sonnet 5 $0.00004 $0.00375
Haiku 4.5 $0.00002 $0.00188

Measured 5d ago against content hash 30ed1792b67a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

minecraft-modpack-server scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- Minecraft 1.21+ → Java 21: `sudo apt install openjdk-21-jre-headless`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

wget -O serverpack.zip "<URL>"
Origin

Copies of this mod

8 near-identical copies found in the catalogue:

optional-skills/gaming/minecraft-modpack-server/SKILL.md · 191 lines

How it starts

The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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

mkdir -p ~/minecraft-server
cd ~/minecraft-server
wget -O serverpack.zip "<URL>"
unzip -o serverpack.zip -d server
ls server/

Look for: startserver.sh, installer jar (neoforge/forge), user_jvm_args.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 INSTALL_ONLY env var to install without launching:

cd ~/minecraft-server/server
ATM10_INSTALL_ONLY=true bash startserver.sh
# Or for generic Forge packs:
# java -jar forge-*-installer.jar --installServer

This downloads libraries, patches the server jar, etc.

Read the full file on GitHub · 191 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 191 lines · 19 tokens per session scan B 30ed1792b67a

Subscribe to this mod's changes

minecraft-modpack-server is a skill published in the GitHub repository NousResearch/hermes-agent (241,505 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 1,876 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.