Anatomy: Claude builds interactive machines that explain ideas

The free, open-source skill from the reel. Ask it to explain an idea and it invents a physical machine that works like that idea, builds it from dozens of small shaded parts, and gives you an interactive figure you can hover, press and take apart.

CostFree and open source (MIT). It runs inside Claude Code (or Antigravity, OpenCode, Codex, MiniMax Code), so it uses your normal plan. No API keys.

DoesTurns a technical idea into an isometric machine with a live readout and motion. Output: a standalone HTML page, a single SVG file, or React/Next.js components. Optional WebGL effects (fire, water, steam) and a beta 3D mode.

NeedsClaude Code (or another supported agent), Node.js 20.10+ (built-in modules only, nothing to npm install) and Chrome or Chromium for its self-checks.

Proof17k stars on GitHub in its first two weeks

Checked on 20 Oct 2026. Tools change fast, so the official page always wins if it says something different.

What you need first

1Claude CodeAnthropic's coding tool for your terminal, signed in with your Claude account. Antigravity, OpenCode, Codex and MiniMax Code work too.

2Node.js 20.10 or newerDownload it from nodejs.org. Check with node -v.

3Chrome or ChromiumThe skill opens it headless to screenshot and check its own figures.

Step by step

Install the skill

In your Terminal run npx skills add wheresryan22/anatomy -g -a claude-code.

Tip: Without the -a part the installer asks which agents to set up. If Claude Code is already open, run /reload-skills.

Ask for a figure

In Claude Code type /anatomy explain how a token bucket rate limiter works, interactive. Swap in any idea you want explained.

Give it real numbers

Name the idea, not the drawing, and include the real sizes, counts and rates. Or name the machine you want (an espresso machine, a lock) and say what should move.

Say where it will live

A standalone HTML page, a single SVG file, or a React/Next.js component, light or dark. The build is different for each.

Let it check its work

It builds the parts, runs its geometry audit and zooms in on every joint. Give it feedback on the first version, then open the page it writes.

Learn this with me

LIVE · THU 15 OCT

Live AI Masterclass

8 ways I make money with AI, built live step by step. Zero experience, no code, any age.

Thu 15 Oct · 6pm UK · 1pm ET
New date coming soon. See what you'll learn and the next date →
2 hours live + the replay
$150 one time · only 10 seats

Join the masterclass →

MEMBERS

The Unnerd AI Club

Not a course. A step-by-step system to make money with AI: pick one money path and follow every step.

52 live classes a year
Q&A 7 days a week + 1:1 calls with me
$100/month · cancel any time

Join the club →

The catch

It's slow on purpose. A good figure takes a long session (parts list, geometry, audit, close-ups), and usually a round of feedback.
Machines, not people or maps. It draws machines, instruments, tools and furniture. An idea with no mechanism comes out weaker.
Not a chart library. No axes or data plots, numbers show as a live readout.
Free skill, plan usage. It runs on your Claude (or other agent) plan, and a big figure uses a fair bit of it.
3D mode is beta and the fire and water effects need WebGL (the drawing still works without it).

Official links

The tool on GitHub (official) ↗The tool's gallery (official) ↗

Want to go further?

I show a new AI tool every week, and how to make money or save hours with it. No tech background needed.

Join the live masterclass Join the club

More free tools →

Unnerd AI · I'm not linked to this tool or its authors, I just think it's useful.