docker-ark-server: Instructions file for Codex

AGENTS.md

docker-ark-server AGENTS.md is an instructions file for Codex, OpenCode from Hermsi1337/docker-ark-server. It costs 3,253 tokens per session, scanned A, original, MIT.

Repository instructions for a Docker image that installs and runs dedicated ARK: Survival Evolved game servers.

In plain words
What is it for?
Use them when changing the Docker image, building or publishing server versions, managing ARK server tools, or handling release and pull-request tags.
Why use it?
They explain the image layout, registries, and tag meanings so deployments and existing scripts keep working.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

This is Hermsi1337/docker-ark-server's own configuration. It tells Codex and OpenCode how to work on docker-ark-server 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 docker-ark-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Hermsi1337/docker-ark-server. 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/Hermsi1337/docker-ark-server/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Hermsi1337/docker-ark-server

Made for: Codex, OpenCode.

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Per session 3,253 This file is loaded in full into every session.
When invoked 3,253 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 $0.03253 $0.03253
Opus 5.5 $0.01301 $0.01301
Sonnet 5.5 $0.00651 $0.00651
Haiku 4.5 $0.00325 $0.00325

Measured 2mo ago against content hash f4580e726b4e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

docker-ark-server 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 · 227 lines

How it starts

The opening of the file, as written. The whole thing — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Working guide for AI agents and humans contributing to this repository. Verify anything you rely on against the actual files — this document summarizes them, it does not replace them.

What this is

A Docker image for ARK: Survival Evolved dedicated servers, installed via steamcmd and managed with arkmanager / ark-server-tools. Base image: cm2network/steamcmd:root.

Published to three registries (same image, same tags):

  • Docker Hub: hermsi/ark-server
  • Quay.io: quay.io/hermsi1337/ark-server
  • GHCR: ghcr.io/hermsi1337/ark-server

Tag schema — public contract, do not change:

Tag Meaning
latest Most recent build from master
latest-<unix-timestamp> Immutable pointer to a specific latest build
tools-<sha> Build pinned to an ark-server-tools commit SHA
pr-<n> Preview build for pull request <n> (same-repo PRs only)

Users pin deployments to these tags. Renaming or dropping any of them breaks downstream compose files and scripts.

Repository layout

Path Purpose
Dockerfile Image build; installs arkmanager via upstream netinstall.sh
bin/docker-entrypoint.sh Container entrypoint (root: setup, cron, drops to steam user)
bin/cron-schedule.sh Cron schedule validation, sourced by the entrypoint (library, never run directly)
bin/steam-entrypoint.sh Server bootstrap/run as the steam user
bin/healthcheck.sh Container HEALTHCHECK (root: drops to the steam user, checks every managed instance)
conf.d/ Templates copied into the image (arkmanager.cfg, arkmanager-user.cfg, crontab)
deploy/ Example docker-compose.yml + example.env for end users
tests/ bats suite for the pure-bash parts of both entrypoints
.github/workflows/build-and-deploy.yml "Build and Publish" — builds and pushes to all three registries
.github/workflows/deploy-preview.yml "Build PR Preview" — builds PRs, pushes pr-<n> for same-repo PRs
.github/workflows/update-arkmanager-pin.yml "Update arkmanager pin" — weekly bump PR for the ARK_TOOLS_VERSION default
.github/workflows/lint.yml "Lint" — shellcheck, yamllint and hadolint on PRs and master
.yamllint yamllint rule config; every disabled rule carries the reason it is off
.github/workflows/tests.yml "Tests" — runs the bats suite on pull requests and on master
.github/dependabot.yml Weekly github-actions version updates

Read the full file on GitHub · 227 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. 2mo ago First seen · 227 lines · 3,253 tokens per session scan A f4580e726b4e

Subscribe to this mod's changes

docker-ark-server AGENTS.md is an instructions file published in the GitHub repository Hermsi1337/docker-ark-server (149 stars, last pushed 2mo ago), licensed MIT. It adds 3,253 tokens to every session, about $0.0130 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 2026-08-30.

Related

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