Playwright Dev

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

by microsoft · Apache-2.0

The skill

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

See AGENTS.md for monorepo structure, build/test/lint commands, and coding conventions.

Library Architecture — client/server/dispatcher structure, protocol layer, DEPS rules
Adding and Modifying APIs — define API docs, implement client/server, add tests
MCP Tools and CLI Commands — add MCP tools, CLI commands, config options
Vendor Dependencies & Bundling — utilsBundle, coreBundle, babelBundle; adding vendored npm packages; DEPS.list; check_deps
Updating WebKit Safari Version — update the Safari version string in the WebKit user-agent
WebView (iOS Safari) Backend — webkit/webview/ against stock Mobile Safari; provisional-target pause/resume; what's upstream vs Playwright patches; local + CI test setup
Bisecting Across Published Versions — reproduce regressions side-by-side from npm and diff node_modules/playwright/lib/ between versions
Dashboard - the UI powering the "playwright cli show" command, and how to work on it

Connect your agent to the Skill Store MCP server and ask for it by ref: microsoft/playwright-dev-89638975964.

Playwright Cli Use the official Playwright CLI for live browser interaction, snapshots, requests, sessions, trac…
Playwright Skill Current Playwright (1.64) patterns for writing, debugging, and scaling reliable test suites.
Playwright Devops DevOps workflows for Playwright - CI failure analysis, workflow debugging, and release operations.
Chat Mode Authoring Author Copilot chat modes and instructions
Skill Creator Scaffold a new spec-compliant SKILL.md bundle