minestom-mcp: Instructions file for Codex

AGENTS.md

minestom-mcp AGENTS.md is an instructions file for Codex, OpenCode from RonaldBunk/minestom-mcp. It costs 369 tokens per session, scanned A, original, Apache-2.0.

A project instruction document for minestom-mcp, a server that exposes Minestom game-server functions to AI agents through the Model Context Protocol. It defines repository workflow, supported runtime details and public tool documentation rules.

In plain words
What is it for?
Use it when modifying Minestom integrations, adding or changing public tools, updating the server registry, or documenting behaviour in the repository.
Why use it?
It keeps changes aligned with the project's existing tool names, schemas, JavaScript files and documentation.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is RonaldBunk/minestom-mcp's own configuration. It tells Codex and OpenCode how to work on minestom-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything minestom-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to RonaldBunk/minestom-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/RonaldBunk/minestom-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/RonaldBunk/minestom-mcp

Made for: Codex, OpenCode.

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 minestom-mcp AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/ronaldbunk/minestom-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/ronaldbunk/minestom-mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/ronaldbunk/minestom-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/ronaldbunk/minestom-mcp/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for minestom-mcp AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/ronaldbunk/minestom-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/ronaldbunk/minestom-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 369 This file is loaded in full into every session.
When invoked 369 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00369 $0.00369
Opus 5.5 $0.00148 $0.00148
Sonnet 5.5 $0.00074 $0.00074
Haiku 4.5 $0.00037 $0.00037

Measured 2mo ago against content hash 33dcec20e507, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

minestom-mcp AGENTS.md scanned grade A with 0 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 2mo 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 21 lines

What it actually says

Agent Guide

  • Start with README.md, CHANGELOG.md, docs/tools.md, and MEMORY.md.
  • Fetch first and keep local main and develop aligned with origin before starting new work when it is safe to do so.
  • Use a dedicated branch or worktree per session. Do not reuse a dirty checkout.
  • Keep changes small and preserve the current structure:
    • src/server.ts wires the MCP server
    • src/tools.ts is the public tool registry
    • src/minestom/*.ts holds the tool logic
    • docs/tools.md is the primary tool reference
  • Prefer local docs and code, then Minestom docs and javadocs, then web search. Do not guess Minestom APIs or JVM build behavior.
  • Preserve the current public contract unless the task explicitly changes it:
    • npm package and primary invocation: minestom-mcp
    • supported Node.js baseline: >=22
    • public tools must stay documented in docs/tools.md
  • If you change a tool name, schema, or behavior, update the implementation, src/tools.ts, and the related docs in the same pass.
  • Keep README.md concise and put detailed tool behavior in docs/tools.md.
  • Use MEMORY.md for AI-facing knowledge and notes: progress, decisions, blockers, ownership, pending work, and other context worth reusing later.
  • Run pnpm check for normal verification. There is no pnpm test script right now, so note that instead of inventing one.
  • Use CHANGELOG.md only for concrete project changes after checks pass. Keep it brief and user-facing, and do not put memory-style notes there.
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. 2mo ago First seen · 21 lines · 369 tokens per session scan A 33dcec20e507

Subscribe to this mod's changes

minestom-mcp AGENTS.md is an instructions file published in the GitHub repository RonaldBunk/minestom-mcp (5 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 369 tokens to every session, about $0.0015 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

minestom-mcp AGENTS.md compared with instructions from other repositories

minestom-mcp AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
minestom-mcp AGENTS.mdRonaldBunk/minestom-mcpInstructions file57mo agoApache-2.0A369Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,649GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA1,907GitHub Copilot