Addyosmani Quality

Community

podo

addyosmani-quality

Web quality skills from Google Chrome's Addy Osmani: a measurement-first web quality audit (Lighthouse-style), accessibility (WCAG 2.2), Core Web Vitals (LCP/INP/CLS), performance, SEO, and security/modern-web best practices.

Overview

Publisher	podo
Repository	`design-agent-skills`
Skill name	`addyosmani-quality`
Stars	27
Forks	3
Bundled files	1
License	MIT
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
1 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by podo on GitHub. Read the source before you install it.

Installation

Install the Addyosmani Quality AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/podo/design-agent-skills/tree/main/skills/addyosmani-quality
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/podo/design-agent-skills.git /tmp/design-agent-skills
mkdir -p .claude/skills
cp -r /tmp/design-agent-skills/skills/addyosmani-quality .claude/skills/addyosmani-quality

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Addyosmani Quality in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Addyosmani Quality on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Addyosmani Quality is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

addyosmani-quality

Catalogue stub — full package: addyosmani/web-quality-skills

Decision tree

Is the full skill already installed? This package installs 6 skills (web-quality-audit, accessibility, core-web-vitals, performance, seo, best-practices); checking the first.
- Global: f=~/.agents/skills/web-quality-audit/SKILL.md; [ -f "$f" ] && ! grep -q "^das:" "$f" && echo "installed" || echo "pointer"
- Project: f=.agents/skills/web-quality-audit/SKILL.md; [ -f "$f" ] && ! grep -q "^das:" "$f" && echo "installed" || echo "pointer"
- installed → the skill is installed as web-quality-audit, invoke it and proceed
- pointer → go to step 2

Detect scope, then install:

bash
[ -e ~/.agents/skills/addyosmani-quality ] && echo "global" || echo "project"

Global:

bash
npx skills add addyosmani/web-quality-skills --skill web-quality-audit accessibility core-web-vitals performance seo best-practices -g -y

Project:

bash
npx skills add addyosmani/web-quality-skills --skill web-quality-audit accessibility core-web-vitals performance seo best-practices -y

Claude Code: send a command as a chat message starting with ! to run it without leaving the conversation.

Claude Code plugin route:


/plugin marketplace add addyosmani/web-quality-skills
/plugin install web-quality-skills@addy-web-quality-skills

Heads-up

License: MIT

Invoke after install

web-quality-audit — "Lighthouse audit", "web quality", "audit my site"
accessibility — "WCAG compliance", "screen reader", "keyboard nav"
core-web-vitals — "LCP", "INP", "CLS", "Core Web Vitals"
performance — "page speed", "loading performance"
seo — "SEO", "structured data", "crawlability"
best-practices — "web security", "modern APIs", "code quality"

What it does

Addy Osmani's (Google Chrome) web quality suite. Each skill is a focused, evidence-led playbook: a holistic Lighthouse-style audit (performance, accessibility, SEO, best practices, agentic browsing), WCAG 2.2 accessibility, Core Web Vitals optimization using field and lab data, loading and runtime performance, search visibility and structured data, and security and modern-web best practices. Start with web-quality-audit and drop into a focused skill for the fixes.

When NOT to use

A single-purpose WCAG 2.2 guidance workflow (design through conformance docs) → use wcag-ai-skill
Targeted color-contrast and accessibility fixes in code → use fixing-accessibility
Motion-specific jank (layout thrashing, compositor properties) → use fixing-motion-performance

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

stub.yaml1 KB

Frequently asked questions

What does the Addyosmani Quality AI skill do?

Why use Addyosmani Quality on TypingMind?

Because you install it once and use it with any model. Addyosmani Quality is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Addyosmani Quality in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/podo/design-agent-skills/tree/main/skills/addyosmani-quality. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Addyosmani Quality?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Addyosmani Quality?

As many as you like. As long as a model supports skills, you can use Addyosmani Quality with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Addyosmani Quality AI skill free?

Yes. It is published on GitHub by podo under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

addyosmani-quality

Decision tree

Invoke after install

What it does

When NOT to use

Bundled files

Frequently asked questions

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