What this skill does
Generate and edit diagrams with the mcp-diagram-generator MCP server. Use this skill for new diagrams, existing .drawio/.mmd/.excalidraw edits, network topology, architecture, flowchart, swimlane, sequence, class, ER, and Excalidraw whiteboard work.
diagram-generator is part of the MCP & Tools category — MCP and tooling skills that expose extra tools to your agent. You can install it on its own or alongside other mcp & tools skills from the OpenClaw catalog.
How to install diagram-generator
The easiest path is via the OpenClaw Easy desktop app — one click, no terminal required:
- Download OpenClaw Easy for macOS or Windows (free, one-click installer, ~30 seconds).
- Open the in-app Skills panel.
- Search for
diagram-generatorand click Install. - The skill activates automatically when an incoming message matches its description.
Install from the command line
If you already run the OpenClaw CLI, add diagram-generator with a single command:
openclaw skills add diagram-generator
This pulls diagram-generator from ClawHub and installs it into ~/.openclaw/skills/diagram-generator/. Restart the OpenClaw gateway afterwards so the new skill is discovered.
How to use diagram-generator
Once installed, diagram-generator 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:
- Click the Download .zip button above to grab
diagram-generator-1.1.7.zipdirectly from our S3 mirror. - Unzip into
~/.openclaw/skills/diagram-generator/(create the directory if it does not exist). - Restart OpenClaw Easy (or the OpenClaw CLI gateway) so the new skill is discovered.
Frequently asked questions
How do I install diagram-generator?
Install diagram-generator in the OpenClaw Easy desktop app by opening the Skills panel, searching for diagram-generator, and clicking Install. From a terminal you can run: openclaw skills add diagram-generator. Either way the skill is placed in ~/.openclaw/skills/diagram-generator/.
Is diagram-generator free?
Yes. diagram-generator is free and open-source, distributed under the Apache-2.0 license through ClawHub. No account or payment is required to download or run it.
What does diagram-generator do?
Generate and edit diagrams with the mcp-diagram-generator MCP server. Use this skill for new diagrams, existing .drawio/.mmd/.excalidraw edits, network topology, architecture, flowchart, swimlane, sequence, class, ER, and Excalidraw whiteboard work.
Related: more mcp & tools skills
If diagram-generator looks useful, you may also want to check out other mcp & tools skills in the OpenClaw catalog:
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Free, open-source · Apache-2.0 · Works with Claude, ChatGPT, Gemini, or local Ollama models