playwright-dev

Playwright Development Guide Table of Contents 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 Vendoring Dependencies — bundle third-party npm packages into playwright-core or playwright Uploading Fixes to GitHub — branch naming, commit format, pushing fixes for issues Build Assume watch is running and everything is up to date. If not, run npm run build . Lint Run npm run flint to lint everything before commit.