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web-testing-playwright

Test and debug websites in a real browser using Playwright automation scripts.

2|Updated Jul 28, 2026
Search Tags:#debugging#screenshots#browser automation#web testing#form filling#playwright#e2e testing
One-click install
npx skills add https://github.com/mbadali25/useful-claude-add-ons --skill web-testing-playwright-mbadali25
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: web-testing-playwright
Source: https://github.com/mbadali25/useful-claude-add-ons/tree/main/skills/web-testing-playwright
Command: npx skills add https://github.com/mbadali25/useful-claude-add-ons --skill web-testing-playwright-mbadali25

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires playwright, and includes scripts (resource) and references (resource) components.

What problem does it solve? Source code tells you what should happen, but only a real browser shows what actually does. This Skill loads live or local web pages in Playwright-driven Chromium, Firefox, or WebKit to reproduce UI bugs, capture console errors and failed network requests, verify login flows, and screenshot layouts at multiple viewport sizes — returning evidence instead of guesses. ## Core Features & Use Cases - Page Auditing: audit_page.py loads any URL, records HTTP status, console errors, uncaught exceptions, failed and slow requests, and screenshots the page at desktop, tablet, and mobile widths, writing a structured JSON report. - Form Inspection & Login: inspect_forms.py enumerates every form field with labels, constraints, and suggested Playwright locators; login.py authenticates using environment-variable credentials and saves a reusable storage-state session file. - Environment Setup & Troubleshooting: check_env.py detects missing Playwright packages and browser binaries, with detailed Windows (winget/Chocolatey) and Linux setup guides plus an error-to-cause troubleshooting reference. - Use Case: A user reports "the login flow is broken on mobile." The Skill logs in with saved credentials, audits the page at 390px width, and returns a screenshot, the failing API response, and the exact console error. ## Quick Start Ask the assistant to check whether your website or a specific page works correctly in a real browser and report any errors with screenshots.

Frequently Asked Questions about web-testing-playwright

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test a website with Playwright in Python?▼

Install the Playwright package with pip, run playwright install chromium to download browser binaries, then load pages with the sync API. The bundled audit_page.py script captures status, console errors, failed requests, and multi-viewport screenshots in one command.

How do I automate login and reuse the session in Playwright?▼

Provide credentials through environment variables, fill the login form, then save the authenticated session with context.storage_state. Later runs pass that file as storage_state to new contexts, skipping repeated logins until the session expires.

Should I use Python Playwright or the Node @playwright/test runner?▼

Python Playwright is faster for one-off investigations and bug reproduction. The Node @playwright/test runner suits durable test suites that run in CI, since it provides retries, parallelism, HTML reports, and per-test traces.

Why does my Playwright test pass headed but fail headless?▼

Headless-only failures usually come from timing races that headed mode's slower pace hides, different default viewport sizes, or missing fonts on server images. Treat it as a real finding since CI runs headless, and fix the missing wait rather than adding sleeps.

Why does Playwright fail to launch browsers on Linux?▼

Linux servers typically lack the shared libraries Chromium needs, producing errors about missing .so files like libnss3. Run sudo playwright install-deps chromium to install the system packages; Alpine/musl is unsupported, so use the official Docker image there.

Can Playwright automate logins protected by MFA or CAPTCHA?▼

MFA and CAPTCHA cannot be automated away. For MFA, run headed with a pause so a human completes it once, then reuse the saved storage state. For CAPTCHA, ask whether the staging environment has test keys rather than attempting to bypass the control.

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