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Playwright Browser Automation

Automate browser tasks and testing with Playwright for web QA.

295|49|Updated Nov 23, 2025
Search Tags:#automation#e2e#playwright#web-testing#browser-testing#dev-server-detection
One-click install
npx skills add https://github.com/smallnest/langgraphgo --skill playwright-browser-automation-smallnest
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Playwright Browser Automation
Source: https://github.com/smallnest/langgraphgo/tree/main/testdata/skills/playwright-skill
Command: npx skills add https://github.com/smallnest/langgraphgo --skill playwright-browser-automation-smallnest

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires playwright.

What problem does it solve?

This Skill enables end-to-end browser automation using Playwright. It auto-detects dev servers, writes deterministic test scripts to /tmp, and executes them with a visible browser for debugging and iterative testing.

Core Features & Use Cases

  • Auto-detects running dev servers (or prompts for a URL) and uses them for browser testing.
  • Writes deterministic Playwright scripts to /tmp/playwright-test-*.js to avoid cluttering projects.
  • Runs tests via: cd $SKILL_DIR && node run.js /tmp/playwright-test-*.js
  • Results appear in real-time with the browser window visible for debugging.
  • Includes helper utilities (lib/helpers.js) for common automation tasks like safe interactions and screenshots.

Quick Start

  1. Install and set up Playwright in the skill directory: cd testdata/skills/playwright-skill && npm run setup
  2. Detect dev servers: cd testdata/skills/playwright-skill && node -e "require('./lib/helpers').detectDevServers().then(servers => console.log(JSON.stringify(servers)))"
  3. Create and run a test script in /tmp, then execute via the universal runner: cd testdata/skills/playwright-skill && node run.js /tmp/playwright-test-page.js

Frequently Asked Questions about Playwright Browser Automation

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

FAQPage Schema
How do I automate browser testing with Playwright?▼

Playwright browser automation executes deterministic test scripts that interact with web applications—filling forms, clicking elements, validating links, and capturing screenshots. It auto-detects local dev servers or accepts a custom URL, runs tests in a visible browser for real-time debugging, and writes scripts to /tmp to keep your project clean.

Can Playwright detect and test my local dev server automatically?▼

Yes, Playwright's dev server detection scans for running development servers on common ports and configures the browser to target them automatically. If no server is found, you can specify a custom URL. This eliminates manual URL configuration for local testing workflows.

What browser interactions can I automate with Playwright?▼

Playwright automates form filling, link validation, login flows, responsive design checks, and screenshot capture. Helper utilities in the Skill provide safe interaction methods to handle asynchronous operations, wait conditions, and element state changes reliably.

How do I write and run Playwright test scripts?▼

Write test scripts as JavaScript files and place them in /tmp/playwright-test-*.js, then execute via the universal runner: cd $SKILL_DIR && node run.js /tmp/playwright-test-*.js. The browser window stays visible during execution for iterative debugging and result inspection.

Do I need to install Playwright separately?▼

Playwright is listed as a dependency and requires setup before first use. Run npm run setup in the skill directory to install Playwright and its browser binaries. This one-time setup enables all subsequent automation tasks.

What are the limitations of browser automation with Playwright?▼

Playwright works best for deterministic, synchronous workflows on local or accessible remote web apps. Complex JavaScript frameworks, multi-window scenarios, or heavy JavaScript execution may require additional waits and helper utilities. Headless mode is configurable based on your debugging needs.

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