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Web app testing with Playwright

Test local web applications, capture screenshots and investigate browser behavior.

Read SKILL.md

Workflow

Anthropic’s webapp-testing toolkit uses Python Playwright and includes a server-lifecycle helper, examples and browser-log workflows for testing local applications.

Use when

  • Verify a local web app’s interactions or reproduce a frontend bug.

Required inputs

  • Local application URL or startup commands
  • User journeys and expected behavior

Expected outputs

  • Browser test scripts
  • Screenshots, logs and observed test results

Prerequisites

  • Python with Playwright and its browser binaries installed.
  • A locally runnable application; install the entire skill directory to retain scripts and examples.

Installation

Run this command in your project after reviewing the instructions and access terms. Install complete upstream directories to keep referenced rules and scripts.

npx skills add https://github.com/anthropics/skills/tree/dbd4588f9e1033efb41dad4bef2f7947c8993d44/skills/webapp-testing --skill webapp-testing --agent claude-code

Project file: .claude/skills/webapp-testing/SKILL.md

Read the setup guide

Selection brief

This brief helps you choose the skill. Read the complete upstream SKILL.md and companion files for its actual instructions.

# Web app testing with Playwright (anthropic-webapp-testing)
Anthropic’s webapp-testing toolkit uses Python Playwright and includes a server-lifecycle helper, examples and browser-log workflows for testing local applications.

## Use when
- Verify a local web app’s interactions or reproduce a frontend bug.

## Required inputs
- Local application URL or startup commands
- User journeys and expected behavior

## Prerequisites
- Python with Playwright and its browser binaries installed.
- A locally runnable application; install the entire skill directory to retain scripts and examples.

## Expected outputs
- Browser test scripts
- Screenshots, logs and observed test results

Source: https://github.com/anthropics/skills/blob/dbd4588f9e1033efb41dad4bef2f7947c8993d44/skills/webapp-testing/SKILL.md
Full SKILL.md: https://agenttaste.dev/skills/anthropic-webapp-testing/SKILL.md

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