archi-mcp: Instructions file for Claude Code

CLAUDE.md

archi-mcp CLAUDE.md is an instructions file for Claude Code from entira/archi-mcp. It costs 2,884 tokens per session, scanned A, original, MIT.

Development instructions for an ArchiMate MCP server, a tool for working with ArchiMate enterprise-architecture models and generating diagrams with PlantUML. ArchiMate is a standard for describing how an organisation’s business, applications, and technology fit together.

In plain words
What is it for?
Use them when setting up, testing, formatting, checking types, or developing the ArchiMate server and its PlantUML diagrams.
Why use it?
They give the agent the project’s setup requirements and conventions for testing, formatting, linting, and type checking.

Instructions file for Claude Code

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

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

Reuse

Borrowing it

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

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 2,884 This file is loaded in full into every session.
When invoked 2,884 The same file — it is already loaded in full.
Security scan A 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 $0.02884 $0.02884
Opus 5 $0.01442 $0.01442
Sonnet 5 $0.00577 $0.00577
Haiku 4.5 $0.00288 $0.00288

Measured 8d ago against content hash 9d0b2815d71e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

archi-mcp CLAUDE.md scanned grade A 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -L https://github.com/plantuml/plantuml/releases/latest/download/plantuml.jar -o plantuml.jar
CLAUDE.md · 354 lines

How it starts

The opening of the file, as written. The whole thing — 354 lines — stays where its author put it; the contents beside it link to each section on GitHub.

🏗️ ArchiMate MCP Server - Claude Code Assistant Configuration

Project Overview

📖 For complete project overview, features, and user documentation, see README.md

This document contains development-specific instructions and technical details for working with the ArchiMate MCP Server codebase.

Tech Stack

📖 For complete tech stack and dependencies, see README.md

Key Development Tools:

  • UV for fast package management and virtual environments
  • pytest for comprehensive testing framework
  • black + ruff for code formatting and linting
  • mypy for type checking

Requirements

  • Python 3.11+
  • uv (recommended) or pip
  • Git
  • Java 8+ (for PlantUML)
  • PlantUML JAR file (see installation command below)

Development Commands

Setup

# Clone the repository
git clone https://github.com/entira/archi-mcp.git
cd archi-mcp

# Install dependencies
uv sync

# Install development dependencies
uv sync --dev

# Download PlantUML JAR (required for diagram generation)
curl -L https://github.com/plantuml/plantuml/releases/latest/download/plantuml.jar -o plantuml.jar

Testing

# Run all tests (194 passing tests, 66% coverage)
uv run pytest

# Run tests with verbose output
uv run pytest -v

# Run tests with coverage
uv run pytest --cov=archi_mcp --cov-report=html

# Quick test for development
uv run pytest -xvs

Test Coverage Summary

The test suite includes 194 passing tests with 66% code coverage across 13 test files:

  • Core Functionality: Server operations, MCP protocol integration
  • ArchiMate Elements: All 55+ element types across 7 layers
  • Relationships: All 12 relationship types with validation
  • PlantUML Generation: Syntax generation and validation
  • XML Export: ArchiMate Exchange Format export and validation
  • Multi-Language: Slovak/English detection and translation
  • Error Handling: Comprehensive error scenarios and recovery
  • Layout Options: Direction, spacing, grouping configurations

Read the full file on GitHub · 354 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. 8d ago First seen · 354 lines · 2,884 tokens per session scan A 9d0b2815d71e

Subscribe to this mod's changes

archi-mcp CLAUDE.md is an instructions file published in the GitHub repository entira/archi-mcp (31 stars, last pushed 9mo ago), licensed MIT. It adds 2,884 tokens to every session, about $0.0144 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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