class SKILL.md skillA

class from antoinebou12/uml-mcp is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add antoinebou12/uml-mcp/class@git:20261023.634e385

Pins git:20261023.634e385 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
antoinebou12/uml-mcp
Path
.skill/skills/class/SKILL.md
Versions recorded
1
Latest version
git:20261023.634e385, committed Oct 23, 2026
Size
2,752 bytes
Repository stars
110
License
MIT

Writes valid class diagram source for uml-mcp (diagram_type=class). Shows classes, attributes, methods and relationships between classes Use when the user asks for class or that notation; then call validate_uml / generate_uml / generate_uml_image.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# class diagram (uml-mcp)

**`diagram_type`:** `class`  
**Backend:** `plantuml`  
**Output formats:** png, svg, pdf, txt, base64

Shows classes, attributes, methods and relationships between classes

Load the workflow skill [uml-mcp-diagrams](../uml-mcp-diagrams/SKILL.md) for URL-first replies, progressive discovery, and which MCP tool to call. This file is notation only; it does not add an MCP tool.

## Notation tips

- Visibility: `+` public, `-` private, `#` protected.
- Inheritance: empty triangle; composition filled diamond; aggregation empty diamond; multiplicities on associations.
- Prefer `skinparam linetype ortho` and `left to right direction` when the graph is dense.

## Themes

Pass **`theme`** to `generate_uml` / `generate_uml_image` (PlantUML built-in name).
The server injects `!theme <name>` after `@startuml` when the source has no `!theme` yet.

Recommended: `cerulean`, `materia`, `sketchy`, `cyborg`, `plain`, `aws-orange`, `blueprint`, `sandstone`.

Match the **page background** (also see MCP prompt **`diagram_theme`**):
- light / white: `cerulean`, `materia`, `plain`, `sketchy`, `sandstone`
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add antoinebou12/uml-mcp/class@sha256:9f6e39c535a17115

The line at the top of this page pins the label git:20261023.634e385, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_rcrshninxthmn4cq.svg)](https://markdownregistry.com/a/art_rcrshninxthmn4cq)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 23, 2026.

versioncommittedcommitsizeaudit
git:20261023.634e385 latest2026-10-23 634e385 2,752 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2752 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

antoinebou12/uml-mcp · 110 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_rcrshninxthmn4cq
GET https://markdownregistry.com/api/v1/resolve?ref=antoinebou12/uml-mcp/class
GET https://markdownregistry.com/api/v1/blob/9f6e39c535a17115a3034b0748d605f9cd0d72d12ce69a856c044b63b2487c17

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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