mermaid SKILL.md skillA
mermaid 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/mermaid@git:20261023.634e385Pins 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/mermaid/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261023.634e385, committed Oct 23, 2026
- Size
- 2,623 bytes
- Repository stars
- 109
- License
- MIT
Writes valid mermaid diagram source for uml-mcp (diagram_type=mermaid). A JavaScript based diagramming and charting tool Use when the user asks for mermaid 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
# mermaid diagram (uml-mcp)
**`diagram_type`:** `mermaid`
**Backend:** `mermaid`
**Output formats:** svg, png
A JavaScript based diagramming and charting tool
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
- Pick an opening kind: `flowchart`, `sequenceDiagram`, `classDiagram`, `stateDiagram-v2`, `erDiagram`, `gantt`, `pie`, `mindmap`.
- One statement per line for `sequenceDiagram` (no `;`-packed lines).
- API sequence: Client / API / optional Auth·DB with `alt` for errors.
- Gantt: `title`, `dateFormat`, sections, `after` dependencies.
- Class conversion: `classDiagram` with `<|--`, `*--`, `o--`, `-->`.
## Themes
Pass **`theme`** to `generate_uml` / `generate_uml_image`. Allowed values: `base`, `dark`, `default`, `forest`, `neutral`.
The server prepends `%%{init: {'theme': '<name>'}}%%` when the source has no init/frontmatter theme.
Match the **page background** (MCP prompt **`diagram_theme`**):
- light / white: `default`, `forest`, `neutral`, `base`
- dark / black: `dark`
…Read the whole file at its exact version.
How to install
mdr add antoinebou12/uml-mcp/mermaid@sha256:c310467b5f463523The 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.
[](https://markdownregistry.com/a/art_easq64azfw6bv53c)
7 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.
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 (2623 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_easq64azfw6bv53c GET https://markdownregistry.com/api/v1/resolve?ref=antoinebou12/uml-mcp/mermaid GET https://markdownregistry.com/api/v1/blob/c310467b5f46352370af2929d513c3247d25c70fe96cbd3c6e01cfbf870b7cdd
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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