A B Test Design

Design skills for the agent era, written so an AI agent can actually use them.

273 skills and 76 commands across 33 plugins, in five collections, for Claude Code and Gemini CLI.

Not sure which skill you need? Start with the skill index — every skill in this repo arranged by the situation you're in, plus the pairs most often mistaken for each other.

Getting started (no coding needed)

These skills run inside an AI coding assistant. The easiest place to use them is Claude Code, and it takes three steps. No terminal required.

1. Get Claude Code. It's a free app from Anthropic (claude.com). Download it, sign in, and open it. You only do this once.

2. Add the suite. In Claude Code, type this and press enter:

/plugin marketplace add Owl-Listener/designer-skills

This just tells Claude where the skills live. Nothing installs yet.

3. Pick what you want. Type /plugin and press enter, then open the Discover tab. You'll see all the collections. Move with the arrow keys, press space to tick the ones you want, and enter to install. That's it.

4. Don't know which skill you need? Type /designer-toolkit:start-here and say what you're working on. It names the stage you're at, gives you one command to run now and the two that follow it, and tells you what you can skip. Use it whenever you're unsure where a piece of work begins.

I only want the design skills, not everything

Same three steps. On the Discover list in step 3, just tick the design ones, design-research, design-systems, ui-design, interaction-design, and so on, and leave the rest. Install as few or as many as you like, and come back for more any time.

I only want one specific collection

Each collection also has its own door. Swap the command in step 2 for the one you want, for example:

/plugin marketplace add Owl-Listener/inclusive-design-skills

Then do step 3 the same way.

Prefer Gemini CLI?

Each plugin is also a Gemini CLI extension. From your project root:

git clone https://github.com/Owl-Listener/designer-skills /tmp/designer-skills
mkdir -p .gemini/extensions
cp -r /tmp/designer-skills/.gemini/extensions/. .gemini/extensions/

The five collections

The other four collections each live in their own repo, with their own stars and full detail, and this marketplace pulls their plugins in for you — so the one install above covers all five. This repo is the front door, and the home of the design-practice collection below.

Design practice (this repo)

Agentic skills, commands, and plugins for design, from research to systems, UI, interaction, and delivery. 111 skills and 34 commands across 9 plugins.

Plugins

These nine plugins ship from this repo — none of them has a separate repo, and there is nothing to clone. After adding the marketplace, install one by name:

/plugin install ux-strategy@designer-skills

All commands

What are skills and commands?

Skills are domain knowledge units — nouns. They teach Claude about a design topic: how to create a user persona, how to define design tokens, how to write a non-leading interview question.

Commands are workflows — verbs. They chain skills together to do a complete job: /design-research:discover runs personas, empathy map, and journey map in one go.