playwright

Use when working with Playwright for E2E testing, browser automation, cross-browser testing, test generation, or visual comparison. Also use when setting up Playwright in a project, writing page object models, or debugging test failures with trace viewer.

Model	Source	Category
sonnet	core	Testing

Full Reference

Playwright

Cross-browser E2E testing framework by Microsoft. v1.58.2 (Jan 30, 2026) — Chromium 145, Firefox 146, WebKit 26.0. Auto-waiting, network interception, built-in test runner.

Quick Reference

Item	Value
Install	`npm init playwright@latest`
Run tests	`npx playwright test`
UI mode	`npx playwright test --ui`
Debug	`npx playwright test --debug`
Codegen	`npx playwright codegen [url]`
Report	`npx playwright show-report`
Trace viewer	`npx playwright show-trace trace.zip`
Node.js	20+ recommended (18 deprecated)

Reference Index

File	Contents
`reference/config.md`	Installation, playwright.config.ts, baseURL, timeouts, projects, reporter
`reference/selectors.md`	getByRole, getByText, getByTestId, CSS/XPath, chaining, frame locators
`reference/actions.md`	click, fill, select, drag, hover, keyboard, upload, scroll
`reference/assertions.md`	expect() API, soft assertions, custom matchers, polling
`reference/fixtures.md`	Test structure, describe, annotations, custom fixtures, built-in fixtures, steps
`reference/network.md`	route(), mock responses, HAR recording, API testing without browser
`reference/auth.md`	storageState, multi-role auth, global setup, IndexedDB, .gitignore
`reference/visual.md`	toHaveScreenshot(), update-snapshots, thresholds, masking, viewports, deterministic checklist
`reference/component-testing.md`	@playwright/experimental-ct-react, mount, component fixtures, Vue/Svelte
`reference/parallel.md`	sharding, workers, test.describe.parallel, serial tests, CI distribution
`reference/ci.md`	GitHub Actions, Docker, browser caching, sharded CI, artifacts
`reference/debugging.md`	Trace viewer, playwright inspector, page.pause(), video, screenshots on failure
`reference/navigation.md`	goto, waitForURL, waitForLoadState, auto-waiting, dialogs
`reference/changelog.md`	v1.50–v1.58 new features, breaking changes, deprecations