What is arcane-mcp AGENTS.md?

Repository instructions for Arcane MCP, a server that lets AI assistants manage Docker containers, images, volumes, networks, and Compose projects through Arcane.

Use them when developing or maintaining the Arcane MCP server and its Arcane API integration.

They give a coding agent the project’s purpose, structure, architecture, and separation between layers, so it can make changes in the expected places.

How 4ears-me/arcane-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to 4ears-me/arcane-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/4ears-me/arcane-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/4ears-me/arcane-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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/4ears-me/arcane-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/4ears-me/arcane-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/4ears-me/arcane-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/4ears-me/arcane-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/4ears-me/arcane-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/4ears-me/arcane-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,818 This file is loaded in full into every session.

When invoked 1,818 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.

Model	Per session	Once invoked
Fable 5.1	$0.01818	$0.01818
Opus 5.5	$0.00727	$0.00727
Sonnet 5.5	$0.00364	$0.00364
Haiku 4.5	$0.00182	$0.00182

Measured 2mo ago against content hash 5a1d51c3c421, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

arcane-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 · 216 lines

How it starts

The opening of the file, as written. The whole thing — 216 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Arcane MCP

Purpose

An MCP (Model Context Protocol) server for controlling Arcane Docker Management. It provides comprehensive access to the Arcane API, enabling AI assistants to manage Docker containers, images, volumes, networks, and compose projects.

Project Structure

@4ears-me/arcane-mcp/
├── src/
│   ├── api/                    # Arcane API client layer
│   │   ├── client.ts           # Main ArcaneClient class with auth & request handling
│   │   ├── containers.ts       # Container API methods
│   │   ├── environments.ts     # Environment API methods
│   │   ├── images.ts           # Image API methods
│   │   ├── index.ts            # Exports createApiClient factory
│   │   ├── networks.ts         # Network API methods
│   │   ├── projects.ts         # Docker Compose project API methods
│   │   ├── system.ts           # System info/health API methods
│   │   └── volumes.ts          # Volume API methods (including backups)
│   ├── tools/                  # MCP tool implementations
│   │   ├── containers.ts       # Container management tools
│   │   ├── environments.ts     # Environment management tools
│   │   ├── images.ts           # Image management tools
│   │   ├── index.ts            # Exports all register functions
│   │   ├── networks.ts         # Network management tools
│   │   ├── projects.ts         # Project/Compose management tools
│   │   ├── system.ts           # System monitoring tools
│   │   └── volumes.ts          # Volume management tools
│   ├── types/                  # TypeScript type definitions
│   │   ├── auth.ts             # Authentication types
│   │   ├── common.ts           # Shared types (ApiResponse, Pagination)
│   │   ├── container.ts        # Container types
│   │   ├── environment.ts      # Environment types
│   │   ├── image.ts            # Image types
│   │   ├── index.ts            # Re-exports all types
│   │   ├── network.ts          # Network types
│   │   ├── project.ts          # Project/Compose types
│   │   ├── system.ts           # System info types
│   │   └── volume.ts           # Volume types
│   ├── config.ts               # Environment configuration
│   └── index.ts                # Server entry point (with shebang)
├── dist/                       # Compiled JavaScript output
├── package.json
├── tsconfig.json
├── .env.example
├── .gitignore
└── README.md

Read the full file on GitHub · 216 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.

2mo ago First seen · 216 lines · 1,818 tokens per session scan A 5a1d51c3c421

Subscribe to this mod's changes

arcane-mcp AGENTS.md is an instructions file published in the GitHub repository 4ears-me/arcane-mcp (0 stars, last pushed 5mo ago), licensed MIT. It adds 1,818 tokens to every session, about $0.0073 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.

arcane-mcp AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
arcane-mcp AGENTS.md4ears-me/arcane-mcp	Instructions file	0	5mo ago	MIT	A	1,818	Codex, OpenCode
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vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
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arcane-mcp: Instructions file for Codex