What is plantuml-mcp-server CLAUDE.md?

Repository instructions for building, running, testing, and releasing the `plantuml-mcp-server` TypeScript project. PlantUML is a tool for describing diagrams in text, and MCP is a way for an AI agent to use external tools.

Use them to compile or watch the server, run its MCP and CI tests, start it, and create patch, minor, or major releases.

They give the agent the project's approved commands and release steps instead of leaving it to guess how the server should be handled.

How infobip/plantuml-mcp-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to infobip/plantuml-mcp-server. 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/infobip/plantuml-mcp-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/infobip/plantuml-mcp-server

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/infobip/plantuml-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/infobip/plantuml-mcp-server/claude-md)

Your own site

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

Per session 937 This file is loaded in full into every session.

When invoked 937 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	$0.00937	$0.00937
Opus 5	$0.00468	$0.00468
Sonnet 5	$0.00187	$0.00187
Haiku 4.5	$0.00094	$0.00094

Measured 10d ago against content hash f0b4568eaddb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

plantuml-mcp-server 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 · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 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.

Common Development Commands

Building and Running

npm run build - Compile TypeScript to JavaScript in the dist/ directory
npm run dev - Start TypeScript compiler in watch mode for development
npm start - Run the compiled server from dist/plantuml-mcp-server.js
make build - Clean and build the project (preferred)
make run - Build and run the server with proper setup
make dev - Run TypeScript in watch mode using Makefile

Testing

make test-mcp - Test using mcptools CLI with sample PlantUML diagrams (comprehensive test including C4 diagrams)
make test - Test server functionality with background process
make test-ci - Fast CI tests without external dependencies (TypeScript compilation, tool registration validation)

Release Management

make release-patch - Create patch release (e.g., 0.1.0 → 0.1.1) with automated CI testing, version bump, git tagging, and npm publishing
make release-minor - Create minor release (e.g., 0.1.0 → 0.2.0) with full release workflow
make release-major - Create major release (e.g., 0.1.0 → 2.0.0) with full release workflow

Release Workflow:

Ensures working directory is clean (no uncommitted changes)
Runs comprehensive CI tests (make test-ci)
Updates package.json version using npm version
Creates git tag and pushes to repository with git push --follow-tags
Publishes to npm registry with npm publish

Setup and Installation

make install - Install npm dependencies with Node.js version check
make setup - Full setup including install, build, and Claude Code configuration
make setup-claude - Show Claude Code MCP configuration instructions

Project Architecture

Single-File MCP Server

This is a Model Context Protocol (MCP) server that provides PlantUML diagram generation capabilities. The project follows a single-file architecture pattern with all core logic in src/plantuml-mcp-server.ts:22-216.

Read the full file on GitHub · 72 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.

10d ago First seen · 72 lines · 937 tokens per session scan A f0b4568eaddb

Subscribe to this mod's changes

plantuml-mcp-server CLAUDE.md is an instructions file published in the GitHub repository infobip/plantuml-mcp-server (53 stars, last pushed 4mo ago), licensed MIT. It adds 937 tokens to every session, about $0.0047 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.

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plantuml-mcp-server: Instructions file for Claude Code