Skip to main content
Claude Code creator uses Chrome extension to test UI changes, debugging web apps in a browser. [code.claude.com](https://code

Editorial illustration for Claude's Creator Reveals AI-Powered Testing Workflow for Chrome Extension

AI Self-Testing Workflow Transforms Chrome Extension Quality

Claude Code creator details workflow: Chrome extension tests each UI change

Updated: 2 min read

Testing software can feel like navigating a maze blindfolded. But what if an AI could methodically check its own work, catching bugs before human eyes even spot them?

Anthropic's Andreas Christopoulos Cherny is pioneering a fascinating approach to quality assurance. His latest workflow harnesses Claude, the AI assistant, to systematically verify user interface changes in real-time.

The strategy goes beyond traditional testing methods. By empowering an AI to open browsers, interact with interfaces, and self-correct, Cherny is pushing the boundaries of automated quality control.

Developers have long dreamed of creating self-checking systems. But turning that dream into reality requires more than wishful thinking - it demands new technical solutions that can adapt and learn.

So how exactly does Cherny's approach work? The details reveal a compelling vision of AI-powered development that could transform how we build and validate digital experiences.

"Claude tests every single change I land to claude.ai/code using the Claude Chrome extension," Cherny wrote. "It opens a browser, tests the UI, and iterates until the code works and the UX feels good." He argues that giving the AI a way to verify its own work -- whether through browser automation, running bash commands, or executing test suites -- improves the quality of the final result by "2-3x." The agent doesn't just write code; it proves the code works. What Cherny's workflow signals about the future of software engineering The reaction to Cherny's thread suggests a pivotal shift in how developers think about their craft.

Anthropic's approach to AI testing reveals a fascinating self-verification strategy. Cherny's workflow suggests AI can now not just generate code, but actively test and refine its own work through browser automation.

The Chrome extension method represents a significant leap in development processes. By allowing Claude to open a browser, test UI changes, and iterate until the experience meets quality standards, the system introduces a new level of autonomous refinement.

Cherny claims this self-testing approach improves output quality by "2-3x" - a bold but intriguing assertion. The key idea appears to be giving the AI direct feedback mechanisms, enabling it to validate and improve its own work in real-time.

This workflow hints at a future where AI doesn't just produce code, but critically evaluates its own performance. The method transforms AI from a passive code generator to an active, self-correcting development partner.

Still, questions remain about the long-term scalability and reliability of such self-testing systems. But for now, Anthropic's approach offers a glimpse into more intelligent, self-aware AI development techniques.

Further Reading

Common Questions Answered

How does Andreas Christopoulos Cherny use Claude to test Chrome extensions?

Cherny employs Claude to systematically verify user interface changes in real-time by opening a browser and testing the UI. The AI iterates through changes until the code works and the user experience meets quality standards, potentially improving testing quality by 2-3x.

What makes Cherny's AI testing workflow unique compared to traditional testing methods?

Unlike traditional testing approaches, Cherny's workflow empowers an AI to autonomously open browsers, interact with interfaces, and self-verify code functionality. The method allows Claude to not just generate code, but actively test and refine its own work through browser automation.

What specific tools does Cherny use to implement his AI-powered testing strategy?

Cherny uses the Claude Chrome extension to test changes to claude.ai/code, enabling the AI to open browsers and systematically verify UI modifications. The workflow leverages browser automation, bash commands, and test suites to ensure code quality and user experience.