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Building in Public · Jun 10, 2025

From Zero to Browser Extension in 2 Minutes: The Art of AI Prompt Engineering

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Rocco R. · Building in Public

Watch my 2-minute video and you'll see what looks impossible:

Claude Sonnet 4 in Windsurf AI IDE takes my prompt and builds a complete browser extension.

GitHub's annoying 3-click account switching becomes a clean 1-click dropdown. TypeScript, manifest v3, and perfect styling are all generated in real time.

But here's the truth:

Those 2 minutes of execution required hours of prompt engineering using Claude's Projects feature as my AI training ground.

The breakthrough isn't speed... It's precision.

I used Claude Opus 4 to write the perfect prompt and Claude Sonnet 4 to execute it flawlessly. This AI-to-AI workflow has changed everything about how I approach complex coding tasks.

Instead of fighting with documentation and debugging for hours, I spent time crafting clear instructions.

The result?

A production-ready browser extension that solves a real problem millions of developers face daily.

The lesson is simple: great prompts beat great coding skills when working with AI.

Read the original on stackformers.substack.com

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