Mermaid Diagrams skill for OpenClaw

What this skill does

Create software diagrams using Mermaid syntax. Use when users need to create, visualize, or document software through diagrams including class diagrams, sequence diagrams, flowcharts, ERDs, C4 architecture diagrams, state diagrams, git graphs, and other diagram types. Triggers include requests to diagram, visualize, model, map out, or show the flow of a system.

The Mermaid Diagrams skill is part of the Developer Tools category — developer tools that help your agent write, review, debug, and ship code. You can install it on its own or alongside other developer tools skills from the OpenClaw catalog.

How to install the Mermaid Diagrams skill

The easiest path is via the OpenClaw Easy desktop app — one click, no terminal required:

1. Download OpenClaw Easy for macOS or Windows (free, one-click installer, ~30 seconds).
2. Open the in-app Skills panel.
3. Search for mermaid-diagrams and click Install.
4. The skill activates automatically when an incoming message matches its description.

Install from the command line

If you already run the OpenClaw CLI, add the Mermaid Diagrams skill with a single command:

openclaw skills add mermaid-diagrams

This pulls mermaid-diagrams from ClawHub and installs it into ~/.openclaw/skills/mermaid-diagrams/. Restart the OpenClaw gateway afterwards so the new skill is discovered.

How to use the Mermaid Diagrams skill

Once installed, the Mermaid Diagrams skill activates on its own: when an incoming message on WhatsApp, Telegram, Slack, Discord, Feishu or Line matches the skill's description, your OpenClaw agent loads it and runs the workflow. You can also trigger it explicitly by describing the task in chat. No extra configuration is required after install.

Manual install (advanced)

If you prefer manual installation:

1. Click the Download skill .zip button above to grab mermaid-diagrams-0.1.0.zip directly from our S3 mirror.
2. Unzip into ~/.openclaw/skills/mermaid-diagrams/ (create the directory if it does not exist).
3. Restart OpenClaw Easy (or the OpenClaw CLI gateway) so the new skill is discovered.

Frequently asked questions

How do I install Mermaid Diagrams?

Install Mermaid Diagrams in the OpenClaw Easy desktop app by opening the Skills panel, searching for mermaid-diagrams, and clicking Install. From a terminal you can run: openclaw skills add mermaid-diagrams. Either way the skill is placed in ~/.openclaw/skills/mermaid-diagrams/.

Is the Mermaid Diagrams skill free?

Yes. It is free to download and run through ClawHub, with no account or payment required. Each skill is published by its own author under its own licence — see its ClawHub page for the licence and source.

What does Mermaid Diagrams do?

Create software diagrams using Mermaid syntax. Use when users need to create, visualize, or document software through diagrams including class diagrams, sequence diagrams, flowcharts, ERDs, C4 architecture diagrams, state diagrams, git graphs, and other diagram types.

Related: more developer tools skills

If the Mermaid Diagrams skill looks useful, you may also want to check out other developer tools skills in the OpenClaw catalog:

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• Baoyu Skills ⬇ 7.5K
• Git Helper ⬇ 7.4K
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Skills in this catalog are community-contributed integrations published on ClawHub and distributed under their own open-source licences. Product and company names, and any third-party service a skill connects to, are trademarks of their respective owners; a listing here does not imply affiliation with, sponsorship by, or endorsement from them. This page does not distribute any third-party application. Rights holders can reach us at hello@openclaw-easy.com.

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