Playwright Best Practices

What it does

This skill equips AI agents to execute Playwright browser automation with industry-standard best practices, ensuring robust and reliable test suites. It guides the agent in configuring environments, managing locators effectively, and handling asynchronous operations to prevent flaky tests.

When to use it

• You need to validate end-to-end user flows across multiple browsers like Chrome, Firefox, and WebKit.
• Your current test suite suffers from flakiness due to timing issues or unstable element selection.
• You are setting up a new CI/CD pipeline that requires consistent browser automation results.
• You want to implement modern Playwright features like auto-waiting and trace file generation for debugging.

Key capabilities

• Configures Playwright with optimal settings for speed and stability.
• Generates reliable locators using text, role, or XPath strategies.
• Manages async operations and waits for network requests or specific actions.
• Sets up screenshot and video recording for failure analysis.
• Orchestrates tests across different browser contexts and devices.

Example prompts

"Create a Playwright test suite that verifies the login flow on our React app using auto-waiting." "Configure Playwright to run headless tests in parallel across Chrome and Firefox with trace files enabled." "Write a script to scrape data from a dynamic website using Playwright, handling loading states gracefully."

Tips & gotchas

Ensure your AI agent has access to the Playwright CLI or npm packages before attempting to generate code. Be mindful that browser automation can be resource-intensive; limit concurrency in CI environments to avoid timeouts.