What is mcp-read-only-argocd CLAUDE.md?

A project instruction file for Claude Code, an AI coding assistant, working on a read-only Argo CD server. It documents the project, commands, architecture, tests, and manual checks.

Use it when asking Claude Code to change or test this Argo CD integration, which lets agents read deployment information without changing it.

It gives the coding assistant the repository context and exact commands needed to install, run, test, lint, and inspect the server.

How lukleh/mcp-read-only-argocd configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to lukleh/mcp-read-only-argocd. 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/lukleh/mcp-read-only-argocd/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/lukleh/mcp-read-only-argocd

Made for: Claude Code.

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/lukleh/mcp-read-only-argocd/claude-md/github.svg)](https://agentmods.dev/instructions/lukleh/mcp-read-only-argocd/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/lukleh/mcp-read-only-argocd/claude-md"><img src="https://agentmods.dev/badge/instructions/lukleh/mcp-read-only-argocd/claude-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/lukleh/mcp-read-only-argocd/claude-md"><img src="https://agentmods.dev/badge/instructions/lukleh/mcp-read-only-argocd/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,147 This file is loaded in full into every session.

When invoked 1,147 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	$0.01147	$0.01147
Opus 5	$0.00574	$0.00574
Sonnet 5	$0.00229	$0.00229
Haiku 4.5	$0.00115	$0.00115

Measured 9d ago against content hash 4a5a3191162b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mcp-read-only-argocd CLAUDE.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 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.

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.

CLAUDE.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

MCP Read-Only Argo CD Server provides read-only access to Argo CD instances via the Model Context Protocol (MCP). It uses browser session cookie authentication and supports multiple Argo CD connections simultaneously.

Development Commands

# Install dependencies
uv sync --extra dev

# Run the server manually for testing
uv run python -m mcp_read_only_argocd.server

# Show runtime paths or write the sample config
uv run mcp-read-only-argocd --print-paths
uv run mcp-read-only-argocd --write-sample-config

# Smoke test all configured connections
uv run python smoke_test.py

# Smoke test a specific connection
uv run python smoke_test.py --connection staging

# Linting
uv run ruff check src/mcp_read_only_argocd/ tests/ smoke_test.py

# Run tests
uv run pytest

Architecture

Core Components

src/mcp_read_only_argocd/server.py - MCP server entry point

ReadOnlyArgoCDServer class manages connections and orchestrates tool registration
Calls domain-specific registration functions from src/mcp_read_only_argocd/tools/
Error handling: Let exceptions propagate naturally - the MCP framework handles them

src/mcp_read_only_argocd/config.py - Configuration management

ArgoCDConnection (Pydantic model): Validates connection settings
ConfigParser: Loads connections and session tokens from YAML
Session token state is keyed by connection_name
Dynamic token reloading: the server hot-reloads changed YAML before tool calls, and reload_session_token() overlays persisted session cache on every request

src/mcp_read_only_argocd/argocd_connector.py - Argo CD API client

ArgoCDConnector wraps httpx for Argo CD API calls
Critical: _get() calls _refresh_credentials() before EVERY request
This applies the currently loaded credential sources without restarting the server
Automatic cookie rotation: captures refreshed argocd.token from response headers

Read the full file on GitHub · 114 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.

9d ago First seen · 114 lines · 1,147 tokens per session scan A 4a5a3191162b

Subscribe to this mod's changes

mcp-read-only-argocd CLAUDE.md is an instructions file published in the GitHub repository lukleh/mcp-read-only-argocd (0 stars, last pushed 1mo ago), licensed MIT. It adds 1,147 tokens to every session, about $0.0057 per session on Opus 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.

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

mcp-read-only-argocd: Instructions file for Claude Code