excalidraw-diagram-generator: a Claude Code skill by GitHub

Official

For people who want editable flowcharts, mind maps or architecture sketches made from a written description. Skip it if you need large diagrams with dozens of exact parts.

Copy install command View the source

Score: 78of 100
Rank: #81of 239
Installs: 34.5Kon skills.sh
Security: Mixed 5 scanners
Updated: Nov 122026
Context: ~105tokens always

Install

npx skills add https://github.com/github/awesome-copilot --skill excalidraw-diagram-generator

Run it in your terminal. View the source

Using the Claude app rather than Claude Code? You can add a skill there too. How to add it in the app

What does excalidraw-diagram-generator do?

excalidraw-diagram-generator is a skill that turns a plain description into a .excalidraw JSON file you can open at excalidraw.com or in the VS Code extension. Claude picks one of nine diagram types, among them flowchart, mind map, swimlane, class, sequence and ER, then pulls out the steps, entities and links. It places rectangles, diamonds, arrows and text with set spacing, a fixed color scheme and the Excalifont font, and keeps diagrams to about 20 elements. For AWS or other cloud icons you download an .excalidrawlib file yourself, and bundled Python scripts split it and add icons and arrows.

When should you use excalidraw-diagram-generator?

Use it when

You want a flowchart of a signup or approval process
You need a rough system architecture sketch you can edit
You want a mind map from a list of ideas

Skip it when

Your diagram needs more than about 20 elements
You need embedded images or exact curves

What it needs and what it can touch

You need

Excalidraw on the web or in VS Code to open the file
Python, only for the icon library scripts

What it can do

Writes .excalidraw files to your project
Runs bundled Python scripts when icon libraries are set up

From reading its instructions, not from running it.

Why it scores 78

Strongest on upkeep (100 of 100), weakest on adoption (49).

Adoption35 points 49
Upkeep20 points 100
Trust20 points 97
Quality15 points 90
Reader answers10 points Not enough answers yet, so this does not count

How the formula works

Is excalidraw-diagram-generator safe to install?

At least one scanner raised a medium warning. Read the results below. Scanners often miss what other scanners catch, and a skill can change after a scan. Read its source before you install it.

Scanner	Result	Date
Gen Agent Trust Hub	Passed	Oct 29, 2026
Socket	Passed	Oct 20, 2026
Snyk	Low risk	Oct 20, 2026
Runlayer	Medium risk	Feb 21, 2026
ZeroLeaks	Low risk	Apr 16, 2026

Details

Installs: 34,506
Repository stars: 41,075
Last repository change: Nov 12, 2026
Tokens always loaded: about 105
Tokens when used: about 5,955
License: MIT
Data confidence: High

Alternatives to excalidraw-diagram-generator

All skills for this job

diagram-design

For people who want clean, on-brand diagrams and charts as single HTML files with inline SVG.

Score 69 27.4K installs

Get diagram-design
drawio-skill

For engineers who want editable draw.io architecture diagrams built from text, code or infrastructure files.

Score 67 10.7K GitHub stars

Get drawio-skill
archify

For developers who want checked, interactive HTML diagrams of systems, flows or schemas, including ones traced from a real repo.

Score 81 191K installs

Get archify
fireworks-tech-graph

For engineers who want clean architecture and workflow diagrams as SVG, PNG or GIF from a description.

Score 71 12K GitHub stars

Get fireworks-tech-graph