AI testing & review
Automatically fix failing Playwright scripts by investigating the live page and opening a GitHub pull request with a proposed code fix
Ahrefs Domain Rating set in type 2 Nov 2026, reset 1 Nov 2026.
Open source tool that automatically investigates failing Playwright scripts and opens GitHub pull requests with proposed fixes.
Libretto is an open source tool that automatically fixes failing Playwright scripts. When a Playwright script fails, Libretto investigates the live page and opens a GitHub pull request with a proposed code fix. The tool integrates into existing Playwright projects by adding the libretto-playwright-debugger package and calling debugFailure() from the failure path, without requiring changes to existing fixtures, retries, logging, or deployment. It works with any browser provider, including local, self-hosted, and hosted options, and supports bringing your own LLM provider API keys.
Pricing model: Free
| Metric | Value |
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| Domain Rating | 27 no change since last check |
| Trust Flow | 8 no change since last check |
| Citation Flow | 31 no change since last check |
| Referring domains | 347 no change since last check |
| External backlinks | 1,847 no change since last check |
Ahrefs Domain Rating set in type 2 Nov 2026, reset 1 Nov 2026. Lead topic: Reference/Education (8). Majestic set 1 Nov 2026, reset 1 Nov 2026. Link data typeset by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
| Domain age | 7 months |
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| Registered | |
| Expires | |
| Registrar | Name.com, Inc. |
| DNSSEC | Not signed |
Measured after Libretto went live on Zivaro Launch on 1 November 2026.
Day 1 since launch. Next receipt: day 30, 1 Dec 2026. These are measurements, not proof of cause: many things move these numbers. Figures we have not measured are left out.
The PR agent focuses on diagnosing the failure and proposing a code fix for future runs. Your existing catch, retry, fallback, and error handling remain responsible for the current run, while the agent opens a pull request when it finds a fix.
No. You can add libretto-playwright-debugger to an existing Playwright project, initialize the debugger once, and call debugFailure() from the failure path. Your current runtime, browser provider, deployment, and workflow structure stay in place.
Not yet. The current package accepts a Playwright Page, so the failed automation must run through Playwright. Selenium and Puppeteer would require separate adapters.
Yes. The PR agent works with local, self-hosted, and hosted browsers as long as your automation has a live Playwright Page and keeps it open while debugFailure() runs.
Yes. The Playwright debugger package is open source under the MIT license in the Libretto repository.
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Libretto has a free listing. The owner can unlock the full profile with a paid launch for $5:
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