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Here are my Open Design setup notes. They are free.

Open Design is a free, open source plugin for Claude. You describe the post, story or carousel you want, and Claude designs it in your brand colours and saves it as an Instagram-size PNG. You need a paid Claude plan.

Show me the setupone prompt or 5 steps · on this page

No sign-up hereNo Canva account needed1k stars on GitHub

✦ Get it

Open Design

Open Design Agent Kit is a free, open source plugin made by feimacode, built on the Open Design project by nexu-io. Once it is in Claude, you ask for an Instagram post, story, carousel or poster in your colours, and Claude designs it and exports a PNG at the right size. No Canva account and no extra API key. You change a design by telling Claude what to change, not by dragging things around. It never posts for you: you save the PNG and upload it yourself.

What you need. A paid Claude plan (Pro or higher), Claude Code or the Claude desktop app, Node.js 18 or newer, and Google Chrome for the PNG export.

Open the Open Design kit on GitHubofficial link

Use Claude Code? Paste this and it sets it up for you

Set up the Open Design plugin (github.com/feimacode/open-design-agent-kit, MIT) in Claude Code on this computer.

1. Check that Node.js 18 or newer is installed (node -v). If not, tell me to install the LTS version from nodejs.org and stop.
2. Check that Google Chrome, Edge or Chromium is installed. The PNG export needs one of them. If none is there, tell me.
3. Tell me to type these two commands in Claude Code myself: /plugin marketplace add feimacode/open-design-agent-kit and then /plugin install open-design . Then tell me to restart Claude Code.
4. After the restart, make me one test design: an Instagram post, 1080 x 1080, for my business in my colours. Ask me for my business name, my two brand colours and the event details first.
5. Before you export, look at the design yourself and fix any text that overlaps or is hard to read. Then export the PNG and tell me the exact folder it is in.

Do not connect Figma, Canva or any other account, and do not publish anything online.

What Open Design does, and what it does not

It does not

Let you drag things around. You change designs by asking Claude
Post for you. You save the PNG and upload it
Catch every mistake. It can miss overlapping text, so check by eye
Draw people well. Simple illustrations can look rough
Work on the free Claude plan

It does

Design Instagram posts, stories, carousels and posters in your colours
Export real PNG files at Instagram size (1080 x 1080 and 1080 x 1920)
Change a design when you ask in plain words
Work with no Canva account and no extra API key

✦ Set it up

Set it up in 5 steps

Ask Claude for your Instagram posts, in your colours.

Who it's for

Anyone who already pays for Claude and wants simple, on-brand Instagram posts without opening Canva.

What you need

A paid Claude plan, Pro or higher. Plugins are not on the free plan.
Claude Code or the Claude desktop app.
Node.js 18 or newer, free from nodejs.org.
Google Chrome (or Edge or Chromium) for the PNG export.
Your brand colours and the details for your post.

The steps by hand

Check you have a paid Claude plan (Pro or higher), Node.js 18 or newer (from nodejs.org) and Google Chrome. Chrome is what turns the design into a PNG.
In Claude Code, type /plugin marketplace add feimacode/open-design-agent-kit and then /plugin install open-design . Restart Claude Code.
Ask for a design, for example: "Make an Instagram post for my yoga class, Monday 7am, in teal and sand." Answer its questions.
Look at the result and ask Claude to fix anything: text that overlaps, words that are hard to read, a colour that is off. Then ask it to export the PNG.
Find the PNG, read every word, and upload it to Instagram yourself.

Three designs to try

Copy this

Make an Instagram post (1080 x 1080) for my class: (what it is), (day and time). Use my colours (colour 1) and (colour 2). Big clear title, short details, no stock photos.

Now make a story version (1080 x 1920) of the same event.

Now make a 3-slide carousel (1080 x 1080 each) with 3 tips about (your topic). One tip per slide, big text, simple shapes.

How I'd use it

Give it your exact brand colours and your real details (day, time, price). It sticks to what you give it.
Ask for one design at a time, then ask for changes in plain words: "make the date bigger", "darker background".
Read every word on the final PNG before you post. Its own check can miss text that overlaps.

Honest limits, costs and licence

The software is free, but the plugin needs a paid Claude plan (Pro or higher).
It is not Canva. There is no photo library and no drag and drop, and the result is a PNG, not an editable layout.
Expect a round of fixes. In my tests two of three designs needed one (pale text and overlapping text), and its own check missed the overlap.
Its example library is mostly slide decks and web pages. The good social posts come from Claude designing fresh from your brief.
It is young (September 2026) and built by a very small team. Do not connect Figma, Canva or shop accounts to it.
Only use text, photos and logos you have the rights to.
Free and open source under the MIT licence, built on Open Design by nexu-io (Apache-2.0).

Why I share it

I don't make Open Design and nobody pays me to share it. It's a free tool I think is worth ten minutes of your time. Try it this week and tell me what you used it for first.

✦ Get unstuck

Stuck? Find your line.

Claude does not show the plugin

Plugins need a paid Claude plan. In Claude Code, type /plugin, check that open-design is installed, then restart Claude Code. In the Claude desktop app, go to Customize, then Plugins, choose Add marketplace and type feimacode/open-design-agent-kit.

It says Node or npx is not found

Install the LTS version of Node.js from nodejs.org, then quit and reopen Claude completely. If you installed Node another way (like nvm), the desktop app may not find it, so the nodejs.org installer is the easiest fix.

The export fails

The PNG export needs Google Chrome, Edge or Chromium installed. Install Chrome and ask Claude to export again.

I cannot find my PNG

Ask Claude "what is the full path of the PNG you exported?". In Claude Code it saves inside a hidden .open-design folder in your project, so ask Claude to copy it to your Desktop.

Text overlaps or is hard to read

Tell Claude exactly what you see, for example "the title on slide 3 overlaps the text, fix it" or "the date is too pale, make it darker". Then export again.

Is there a catch?

The plugin is free and open source (MIT), made by feimacode on top of nexu-io's Open Design (Apache-2.0). It needs a paid Claude plan, so the software is free but Claude is not. It is young (September 2026) and run by a very small team. I found no tracking code in it. Only use text, photos and logos you have the rights to.

My screen looks different from the steps

Apps change their screens. Use the official links above, which the people who make Open Design keep up to date.

None of these fixed it

Email joe@mastermindshq.business. Say which step you were on and paste what you saw.

✦ What next · paid · optional

Want the next step? Get Found on Google and ChatGPT.

$47one payment, no monthly fee

0API keys or paid services

1prompt per step, run by your Claude Code

14day found check: day 1, 7 and 14

You came for one piece of my Claude Code setup. If you have your own website, the next useful job for that setup is getting the site found.

Get your website listed on Google and Bing so people (and ChatGPT) can find you by your name and your service. ChatGPT finds websites mostly through Bing, so we tell Bing about you too. Your own Claude Code does the work on your computer, one prompt at a time.

What it does: sets up Google and Bing, your Google Business Profile, posts that answer real customer questions, and a monthly check.
What usually happens: your site shows up when people search your name or business name within a few weeks.
What it cannot promise: ranking for competitive searches like "best X near me". That takes months of steady posts.
You need a website in a folder Claude Code can open, Node.js 20 or newer, and a free Google account. It is not for Squarespace or Wix sites.

$47One payment. No monthly fee. Your own Claude Code runs it, so nobody else needs access to your accounts.

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Created by Joe Che.

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