Addy Osmani

Addy Osmani’s Agent Skills cover the software lifecycle from requirements to verification. The DevTools browser-testing Skill turns runtime observations into evidence for an engineering decision.

About Addy Osmani

Addy Osmani publishes Agent Skills for engineering workflows such as specification, implementation, testing and release. The repository provides both whole-pack installation and a path for installing selected Skills.

Browser Testing with DevTools focuses on what an application actually does while running in Chrome. The Skill uses a separately configured MCP server to inspect the live page, look for errors, and compare behavior before and after a change.

Addy Osmani’S Agent Skill Guide

Start with a workflow for collecting evidence from a running page. The guide covers the required DevTools connection and how to keep it scoped to your test browser.

Browser Testing with DevTools
Collect DOM, console, request, and screenshot evidence from an isolated browser session.
- Development Workflows
- Deployment, Browser & Desktop
- Frontend Interfaces
- Testing & Debugging
- Browser Automation
- Browser Automation
- Testing
- Debugging

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Frequently Asked Questions

Where is the official collection?

The addyosmani/agent-skills GitHub repository contains the Skill manifests, plugin information, and host setup instructions.

Can I install a single Skill?

The repository documents selection through the Skills CLI. A single-Skill install does not include shared root-level reference checklists.

Is the Chrome DevTools MCP server included?

The Skill’s installation and the MCP server setup are separate. Configure the server in a supported host before using its browser tools.

What does the browser guide help me verify?

Use it to reproduce a live browser issue, inspect console and network evidence, and compare the same interaction before and after a fix.

Where do I check host-specific commands?

Use the upstream setup documentation for your host. Plugin and command conventions differ between Claude Code, Codex, and other clients.

How does the project publish changes?

Check the repository releases and the selected Skill’s manifest when a workflow or dependency changes.

Check Behavior in a Real Browser

Start with a reproducible interaction and collect the browser evidence that can confirm it.

Read the DevTools browser testing guide