Think about the small tasks you repeat every week. Ten email subject lines. A set of social captions. A summary of yesterday’s meeting. A first-draft invoice.
Each one takes 20 or 30 minutes. None is hard. All of them are boring.
I’m not a software developer. I build AI prompt systems, so for this guide I looked at which of these repeat tasks suit a small tool you build in plain English, with no code. The result is Vibe Coding Mini-Apps.
What “Vibe Coding” Means
You describe what you want, in normal words. An AI tool like Claude or ChatGPT turns that into something that works. You make the decisions. The AI does the typing.
That is the whole idea. It sounds bigger than it is.
What a “Mini-App” Is in This Book
Let me be clear here, because many articles are not. In this book, most of the mini-apps are a saved master prompt: a prompt with blanks you fill in, which you run in an AI chat. You do not need to build a website.
Later, if you want, the book shows how to wrap a prompt in a simple interface using no-code builders. But that is a second step, and it is harder.
Here is the start of the Chapter 1 prompt, the Email Subject Line Generator:
“You are an expert email marketer with 15 years of experience optimizing open rates. Generate 10 email subject lines for the following context: Product/Service: [YOUR PRODUCT] / Target Audience: [YOUR AUDIENCE] / Email Purpose: [PROMOTION/NEWSLETTER/ANNOUNCEMENT/FOLLOW-UP] / Tone: [PROFESSIONAL/CASUAL/URGENT/PLAYFUL] / Key Benefit: [MAIN VALUE PROPOSITION]”
The blanks are the point. Same structure every time, so the quality is more consistent. The prompt also asks for a one-sentence reason behind each line, which helps you choose.
One honest note: it also asks the AI to label each line HIGH, MEDIUM or LOW for open rate. Treat that as a guess. The book’s own advice is better: pick your top 3 and A/B test them in your email platform.
Before and After
Weak: “Write me some email subject lines.”
Better: fill in the blanks. Product: a 4-week online yoga course. Audience: busy office workers. Purpose: promotion. Tone: friendly. Key benefit: 20 minutes a day, no equipment. (That is my example, not from the book.)
Same tool, but the second version gives the AI something specific to write about. The book’s pro tip goes one step further: test your top 2 lines, then paste the winner back into the prompt as a style reference for next time.
The 15 Blueprints
Each chapter has the same shape: 6 steps, the master prompt, real-world use cases, and a pro tip.
- Marketing: email subject lines, social captions, content repurposer, SEO meta tags, cold outreach personaliser
- Sales and service: product descriptions, customer FAQ bot, lead qualifier chatbot, invoice generator, testimonial request automator
- Productivity and life: meeting notes summariser, meal plan generator, habit tracker coach, micro course builder
- Contracts: a contract clause checker that explains clauses in plain English
👉 [Get Vibe Coding Mini-Apps on Amazon]
The Tools
Bonus 1 gives a minimum stack: an AI chat tool (a free tier is enough to start), a no-code builder such as Bolt.new or Replit if you want an interface, and a payment tool such as Gumroad or LemonSqueezy only when you are ready to sell. Free tiers and features change, so check each tool’s site.
About Money
Bonus 2 lists 7 ways people could earn from a mini-app, such as doing it as a service, selling templates, or offering a subscription. The prices in the book are starting ideas.
I cannot tell you what you will earn. I have no data on that, so I won’t guess. Treat income as a possible outcome, not a plan.
Use Two Chapters With Care
The contract checker gives educational analysis, not legal advice. The book says to consult a lawyer for anything high-risk. I agree. Also, do not paste a confidential contract into a public AI tool without permission.
The meal plan generator is not medical or dietary advice. If you have allergies or a health condition, ask a doctor or dietitian.
Start With One Task
Do not build 15 tools this weekend. Pick the one task you repeat most, open the matching chapter, and run the prompt on a real example.
👉 [Grab your copy of Vibe Coding Mini-Apps]
If you want the basic prompt formula behind all my guides, it is in a free book: AI Superpower for Everyone.
