# Playwright Dev

> Explains how to develop Playwright - add APIs, MCP tools, CLI commands, and vendor dependencies.

- Skill: `ulpi-io/playwright-dev` (Agent Skill, multi-file: 5 files)
- Install (CLI): `npx skillmds@latest add ulpi-io/playwright-dev`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ulpi-io/playwright-dev/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: ulpi-io (https://skillmd.com/u/ulpi-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ulpi-io/playwright-dev

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# 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](mcp-dev.md) — add MCP tools, CLI commands, config options
- [Vendoring Dependencies](vendor.md) — bundle third-party npm packages into playwright-core or playwright