uml-mcp-c4-model SKILL.md skillA
uml-mcp-c4-model from antoinebou12/uml-mcp is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add antoinebou12/uml-mcp/uml-mcp-c4-model@git:20261107.3c24c72Pins git:20261107.3c24c72 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- antoinebou12/uml-mcp
- Path
.github/skills/uml-mcp-c4-model/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261107.3c24c72, committed Nov 7, 2026
- Size
- 4,830 bytes
- Repository stars
- 109
- License
- MIT
Draw a C4 model readers can drill into, from context to containers to components (c4_model).
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
# C4 model Follow `skill://uml-mcp-diagrams/SKILL.md`. One JSON model covers the three C4 levels. The SVG is the level you choose, in C4 notation with a legend; the page starts there and opens a system into its containers and a container into its components, with breadcrumbs back up. ## Types | Type | Use for | Example prompt | | --- | --- | --- | | `c4_model` | a C4 model to explore: system context, then containers, then components | C4 model of our e-commerce platform: shoppers, the storefront, order and payment services, Postgres, a Kafka topic, Stripe. Let me click into each level. | ## Steps 1. Check the live catalog (`list_diagram_types` or `uml://types`); the bundled plugins are on by default, but a server may turn them off with `plugins.bundled: false`. 2. Read the type's example from `uml://examples` and keep its field names. 3. Call `validate_uml`; an error names the field and, for a bad reference, lists the known ids, so fix it and validate again. 4. Render with `generate_uml_image` for a chat image, or `generate_uml` with `output_format: "html"` for the interactive page in the MCP App viewer. Clients without MCP Apps still get the PNG and SVG. …
Read the whole file at its exact version.
How to install
mdr add antoinebou12/uml-mcp/uml-mcp-c4-model@sha256:e8c161da4653ada9The line at the top of this page pins the label git:20261107.3c24c72, 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.
[](https://markdownregistry.com/a/art_vhv4exleobig4zk7)
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Versions
The registry has recorded 1 version of this file, committed on Nov 7, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4830 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
antoinebou12/uml-mcp · 109 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vhv4exleobig4zk7 GET https://markdownregistry.com/api/v1/resolve?ref=antoinebou12/uml-mcp/uml-mcp-c4-model GET https://markdownregistry.com/api/v1/blob/e8c161da4653ada99b8d4ce24173a9c08665dd2a9841f3cec8a1d0e274fbe005
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.