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deepmind.google·6d ago
AI Engineering
Hacker News·19d ago·5 min read
Show HN: Libretto PR agents – Automatically fix failing playwright scripts
TL;DR
Playwright scripts can fail due to changes in the web page, causing disruptions in automated testing. Libretto PR agents automatically investigate these failures and propose code fixes by analyzing the live page.
✦ Why It Matters
Integrate Libretto into your testing pipeline to automatically handle Playwright script failures and reduce manual debugging time.
Key Takeaways
- Add libretto-playwright-debugger to your Playwright project.
- Call debugFailure() during script failures for automated fixes.
- Use your own model provider API key for customization.
- Run Libretto with local or hosted browser environments.
How It Works
Libretto PR agents activate only when a Playwright script fails. They investigate the live page to determine what changed, then propose a code fix by creating a pull request on GitHub.
This allows developers to maintain their existing error handling and retry mechanisms while benefiting from automated diagnostics.