Skills for Real Engineers. Straight from my .agents directory.

A recreation of the chrome console interface to be embedded on web pages

Chrome extension & CLI to let agents control your browser. Runs Playwright snippets in a stateful sandbox. Available as CLI or MCP

CLI for common Playwright actions. Record and generate Playwright code, inspect selectors and take screenshots.

📚 从零开始构建大模型

VS Code extension for Vitest

Next generation testing framework powered by Vite.

MCP: Build Rich-Context AI Apps with Anthropic

MCP: Build Rich-Context AI Apps with Anthropic

📚 《从零开始构建智能体》——从零开始的智能体原理与实践教程

Notes for courses by deeplearning.ai

The missing `yarn audit fix`

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

A code coverage tool to generate native V8 reports or Istanbul reports.

A playwright test reporter (Node.js)

A highly testable TodoList app that uses React hooks and Context.

An online tool for converting HTML to elm-html. Go to

files used in my blog