Playwright Dev
Explains how to develop Playwright - add APIs, MCP tools, CLI commands, and vendor dependencies.
Specification
- Skill ID
- microsoft/playwright/playwright-dev
- Publisher
- microsoft
- Repository
- playwright
- Installs
- 0
- Files
- 10
- Synced
- Sep 23, 2026
How to use it
Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.
microsoft/playwright/playwright-devInstalls these files- SKILL.md
- api.md
- bisect-published-versions.md
- dashboard.md
- library.md
- tools.md
- trace_system_guide.md
- vendor.md
- webkit-safari-version.md
- webview.md
What this skill tells the agent
Playwright Development Guide
See CLAUDE.md for monorepo structure, build/test/lint commands, and coding conventions.
Detailed Guides
- 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
More from microsoft
Use this skill in a project
Open any RiverX project, search the Skills panel for microsoft/playwright/playwright-dev, and install it in one click.