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proxmox-mcp: Instructions file for Claude Code

CLAUDE.md

proxmox-mcp CLAUDE.md is an instructions file for Claude Code from BenjaminDuthe/proxmox-mcp. It costs 1,666 tokens per session, scanned C, original, MIT.

A project instruction file for a Proxmox infrastructure connector, where Proxmox is software for managing virtual machines and containers. It requires agents to consult the project wiki first and keep secrets in Vaultwarden.

In plain words
What is it for?
Use it to guide work on the connector’s virtual machines, containers, and clusters while following its documentation and secret-storage rules.
Why use it?
It gives agents fixed rules for exploring the project and handling passwords, tokens, and API keys.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md.

This is BenjaminDuthe/proxmox-mcp's own configuration. It tells Claude Code how to work on proxmox-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 proxmox-mcp configures →

not rated 2repo 2mo ago C scan 1,666 tokens original MIT
View source ↗ BenjaminDuthe/proxmox-mcp
Reuse

Borrowing it

Nothing to install: this file belongs to BenjaminDuthe/proxmox-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/BenjaminDuthe/proxmox-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/BenjaminDuthe/proxmox-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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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.

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Per session 1,666 This file is loaded in full into every session.
When invoked 1,666 The same file — it is already loaded in full.
Security scan C 1 finding. 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 $0.01666 $0.01666
Opus 5 $0.00833 $0.00833
Sonnet 5 $0.00333 $0.00333
Haiku 4.5 $0.00167 $0.00167

Measured 9d ago against content hash 947108fd3c3f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade C, and why

proxmox-mcp CLAUDE.md scanned grade C with 1 finding 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 9d 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.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- `PROXMOX_SSH_KEY_PATH` - Path to SSH private key (recommended, e.g., `~/.ssh/id_rsa`)
CLAUDE.md · 186 lines

How it starts

The opening of the file, as written. The whole thing — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - MCP Proxmox

REGLE ABSOLUE : Wiki-First

AVANT de lire du code source, TOUJOURS consulter le Wiki (7 pages) :

wikijs_get_page(path="MCP-Proxmox")                            # Index + sommaire
wikijs_get_page(path="MCP-Proxmox/<page>")                     # Page specifique
wikijs_search_pages(query="MCP-Proxmox <sujet>")               # Recherche

INTERDIT : Glob/Grep/Read pour "explorer" l'architecture. Utiliser UNIQUEMENT pour les fichiers a modifier.

REGLE ABSOLUE : Vaultwarden comme coffre-fort unique

Tous les secrets (mots de passe, tokens, API keys) sont centralises dans Vaultwarden (organisation SiteCraft, https://vault.sitecraft-it.com).

  • JAMAIS de secrets en clair dans CLAUDE.md, MEMORY.md ou le code
  • Avant chaque tache necessitant un secret : le recuperer depuis Vaultwarden
  • Apres chaque creation/modification de secret : mettre a jour l'item Vaultwarden dans la collection du projet
  • Les .env restent le mecanisme d'execution — Vaultwarden est la source de verite

Project Overview

MCP (Model Context Protocol) server enabling Claude to interact with Proxmox VE infrastructure for VM, LXC container, and cluster resource management.

Tech Stack Requirements

  • Python 3.11+
  • MCP SDK: Official mcp package (NOT FastMCP)
  • HTTP Client: httpx (async) - custom client, NOT proxmoxer
  • Validation: pydantic v2
  • Packaging: pyproject.toml only (no setup.py, no requirements.txt)

Common Commands

# Install in development mode
pip install -e ".[dev]"

# Run the MCP server
python -m proxmox_mcp.server

# Run tests
pytest -v --cov=proxmox_mcp

# Run a single test file
pytest tests/test_tools/test_vms.py -v

# Lint and format
ruff check src/
ruff format src/

Architecture

Core Components

  • src/proxmox_mcp/server.py - MCP server entry point, tool registration using @server.list_tools() and @server.call_tool() decorators
  • src/proxmox_mcp/client.py - Async Proxmox API client with dual auth support (token API or user/password with auto-renewal)
  • src/proxmox_mcp/config.py - Environment-based configuration via pydantic
  • src/proxmox_mcp/models.py - Pydantic models for API inputs/outputs
  • src/proxmox_mcp/tools/ - Tool implementations organized by domain (nodes, vms, containers, snapshots, storage, tasks, ssh, users)
    • set_vm_config - Modify QEMU VM configuration (CPU, RAM, name, etc.) via PUT /nodes/{node}/qemu/{vmid}/config
    • set_container_config - Modify LXC container configuration (CPU, RAM, swap, hostname, etc.) via PUT /nodes/{node}/lxc/{vmid}/config
  • src/proxmox_mcp/ssh_client.py - Async SSH client using asyncssh for direct node access

Read the full file on GitHub · 186 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. 9d ago First seen · 186 lines · 1,666 tokens per session scan C 947108fd3c3f

Subscribe to this mod's changes

proxmox-mcp CLAUDE.md is an instructions file published in the GitHub repository BenjaminDuthe/proxmox-mcp (2 stars, last pushed 2mo ago), licensed MIT. It adds 1,666 tokens to every session, about $0.0083 per session on Opus 5. A static security scan graded it C with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

CloudContainersDevOps and cloud
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