# Playwright Dev > Explains how to develop Playwright - add APIs, MCP tools, CLI commands, and vendor dependencies. - Skill: `mahabdalla/playwright-dev` (Agent Skill) - Install (CLI): `npx skillmds@latest add mahabdalla/playwright-dev` - Raw SKILL.md: https://api.skillmd.com/api/skills/mahabdalla/playwright-dev/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: mahabdalla (https://skillmd.com/u/mahabdalla) - Updated: 2026-09-22 - Page: https://skillmd.com/skills/mahabdalla/playwright-dev --- # Playwright Development Guide See [CLAUDE.md](../../../CLAUDE.md) for monorepo structure, build/test/lint commands, and coding conventions. ## Detailed Guides - [Library Architecture](library.md) — client/server/dispatcher structure, protocol layer, DEPS rules - [Adding and Modifying APIs](api.md) — define API docs, implement client/server, add tests - [MCP Tools and CLI Commands](tools.md) — add MCP tools, CLI commands, config options - [Vendoring Dependencies](vendor.md) — bundle third-party npm packages into playwright-core or playwright - [Updating WebKit Safari Version](webkit-safari-version.md) — update the Safari version string in the WebKit user-agent --- > Converted and distributed by [TomeVault](https://tomevault.io) | [Claim this content](https://tomevault.io/claim/microsoft/playwright)