No coding background. Built and shipped a Chrome extension in weeks with AI help. Here is what I made.
I want to be upfront. I am not a developer. I have never written code professionally. I run a beard oil brand in Korea and had zero technical background going into this.
But I had a problem I wanted to solve.
Every time I used Claude or ChatGPT my results were mediocre compared to what I kept seeing others post online. I was typing conversationally, basically just chatting and hoping something useful came back. My prompts were not improving and I had no idea why.
I looked at existing prompt tools and they all did the same thing. Rewrite your prompt. Hand it back. No explanation. You copy the result, use it once, and learn absolutely nothing.
So I decided to build something different. Something that actually teaches you why your prompt was weak and why the fix works.
I called it Seuseung (스승), Korean for revered master or mentor.
What it does:
It lives inside Claude, ChatGPT and Gemini. No tab switching, no copy paste. You type your prompt, click a button, and a panel slides in from the side with a score across Clarity, Context and Specificity, a diagnosis of what is weak, an improved version optimized for whichever AI you are using, and most importantly a teaching section that explains the real reason each change makes the AI respond better. Plus 3 principles you can carry forward to every future prompt.
The teaching part is the whole point. Every other tool just fixes the prompt. This one tries to make you better at prompting so you need the tool less over time.
How I built it:
Entirely with Claude's help. Every line of code, every debugging session, every deployment issue. I had no idea what a proxy server was when I started. I did not know what CORS meant. I had never touched Node.js or Chrome extension APIs.
It took longer than a developer would take. There were a lot of errors and a lot of going back and forth. But it shipped.
The stack if anyone is curious: Chrome extension with content scripts injected into Claude, ChatGPT and Gemini, a Node.js proxy on Railway that handles the Anthropic API calls and usage tracking, Polar for payments, GitHub Pages for the privacy policy.
Free to try: 10 lessons per day
Pro: unlimited at $4/month or $29/year
https://chromewebstore.google.com/detail/스승-·-seuseung/kgblidfbdjmfehfphgjfmbieigocejni
Happy to answer questions about the build process or the product. Especially from anyone else without a technical background thinking about building something.