archimate-mcp: Instructions file for Claude Code

CLAUDE.md

archimate-mcp CLAUDE.md is an instructions file for Claude Code from thijs-hakkenberg/archimate-mcp. It costs 1,411 tokens per session, scanned A, original, MIT.

A project guide for an MCP server that reads and writes ArchiMate architecture models in the coArchi2 file format. ArchiMate is a standard way to describe how an organisation's systems, processes, and goals fit together.

In plain words
What is it for?
Use it when building, testing, validating, importing, exporting, rendering, or documenting coArchi2 and ArchiMate models.
Why use it?
It gives developers the commands, code structure, model types, relationship rules, and export formats needed to work on the server without guessing.

Instructions file for Claude Code

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

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

Reuse

Borrowing it

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

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.

agentmods badge for archimate-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/thijs-hakkenberg/archimate-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/thijs-hakkenberg/archimate-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/thijs-hakkenberg/archimate-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/thijs-hakkenberg/archimate-mcp/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.

agentmods 80×15 button for archimate-mcp CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/thijs-hakkenberg/archimate-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/thijs-hakkenberg/archimate-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,411 This file is loaded in full into every session.
When invoked 1,411 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 $0.01411 $0.01411
Opus 5 $0.00705 $0.00705
Sonnet 5 $0.00282 $0.00282
Haiku 4.5 $0.00141 $0.00141

Measured 10d ago against content hash 0c471f7c6517, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

archimate-mcp 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 10d 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 · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ArchiMate MCP Server

An MCP server for working with ArchiMate models in coArchi2 repositories.

Project Commands

  • npm run build - Build TypeScript to dist/
  • npm test - Run tests (vitest)
  • npm run test:watch - Run tests in watch mode
  • npm run test:coverage - Run tests with coverage report

Architecture

src/
├── index.ts                    # MCP server entry point with 33 tool definitions
├── model/
│   ├── types.ts               # ArchiMate type definitions (59 element types)
│   ├── parser.ts              # coArchi2 XML parser
│   └── writer.ts              # coArchi2 XML writer
├── relationships/
│   └── validation.ts          # ArchiMate 3.2 relationship validation
├── exporters/
│   ├── mermaid-exporter.ts    # Mermaid flowchart generation
│   ├── svg-exporter.ts        # Native SVG/PNG rendering
│   ├── markdown-exporter.ts   # Markdown documentation
│   └── html-deck-exporter.ts  # Interactive HTML presentation
├── exchange/
│   ├── exchange-reader.ts     # ArchiMate Open Exchange import
│   └── exchange-writer.ts     # ArchiMate Open Exchange export
└── audit/
    └── logger.ts              # NDJSON audit logging

Key Concepts

  • coArchi2 Format: Native format for Archi tool, uses .archimate XML files
  • ArchiMate Exchange Format: Standard XML format (xmlns http://www.opengroup.org/xsd/archimate/3.0/)
  • Layers: Motivation, Strategy, Business, Application, Technology, Physical, Implementation, Composite
  • Relationship Validation: All relationships validated against ArchiMate 3.2 spec

Testing

Uses Vitest. Test files are colocated with source in __tests__/ directories or as .test.ts files.

import { describe, it, expect } from 'vitest';

describe('feature', () => {
  it('should work', () => {
    expect(true).toBe(true);
  });
});

Test fixtures in src/__tests__/fixtures/:

  • sample-model.ts - Factory for creating test models
  • sample-exchange.xml - Sample ArchiMate exchange format file

Read the full file on GitHub · 115 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. 10d ago First seen · 115 lines · 1,411 tokens per session scan A 0c471f7c6517

Subscribe to this mod's changes

archimate-mcp CLAUDE.md is an instructions file published in the GitHub repository thijs-hakkenberg/archimate-mcp (18 stars, last pushed 4mo ago), licensed MIT. It adds 1,411 tokens to every session, about $0.0071 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 2026-08-30.

Related

Other instructions, from other repositories

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

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

deepseek-harness AGENTS.md

AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.

deepseek-ai/deepseek-harness · 3,735 tokens