Anatomia di un buon prompt di build
Obiettivo, contesto, vincoli ed esempi
Anatomia di un buon prompt di build è una lezione Vibe Coding gratuita su CoddyKit. Questa è la lezione 1 di 4. Puoi leggere la lezione completa qui gratuitamente — poi esercitati direttamente nel browser con un editor di codice integrato e un tutor IA disponibile 24/7. Fa parte del percorso di apprendimento Vibe Coding, e i tuoi progressi si sincronizzano tra il web e l'app CoddyKit. Il corso Vibe Coding include 4 lezioni in totale.
Parti di questa lezione non sono ancora state tradotte e vengono mostrate in inglese.
The Prompt Is the New Code
In vibe coding, your prompt is the most powerful tool you have. You don't memorize syntax — you describe what you want, and tools like Cursor, Claude Code and v0 write the code.
But here's the secret: a great prompt gets great code on the first try. A vague one sends you in circles. This lesson breaks down the anatomy of a build prompt that works.
The Four Ingredients
Every strong build prompt has four parts. Memorize these like a recipe:
- Goal — what you want built
- Context — what already exists (tools, files, style)
- Constraints — rules and limits to respect
- Examples — a sample of the output you imagine
You won't always need all four, but the more you give, the less the AI has to guess.
Ingredient 1: The Goal
The goal is the one thing the AI must accomplish. State it as an action: build, add, fix, refactor.
Compare a weak goal to a strong one. Notice how the second tells the AI exactly what success looks like.
Weak goal:
"Make me a website."
Strong goal:
"Build a single-page landing site for a coffee subscription service, with a hero section, a 3-tier pricing table, and a sign-up form."Ingredient 2: Context
Context tells the AI about your world: what tech you're using, what files exist, who the app is for. Without it, the AI picks defaults that may not match your project.
In Cursor or Claude Code, context can come from open files automatically — but spelling it out still helps.
Build prompt with context:
"I'm building a to-do app using plain HTML, CSS and vanilla
JavaScript (no framework). It's for busy students.
Add a feature to mark tasks as 'urgent' with a red flag icon."Ingredient 3: Constraints
Constraints are your guardrails. They keep the AI from over-building or going off-style. Use them to pin down libraries, file size, browser support, or what NOT to do.
Constraints are how you turn a generic answer into your answer.
Constraints examples:
"Use only vanilla JavaScript — no jQuery, no npm packages."
"Keep it under 100 lines."
"Don't add a backend; store data in localStorage."
"Match the existing blue-and-white color scheme."Ingredient 4: Examples
An example shows the AI the shape of what you want. Even a tiny sample of input/output, or a snippet of your existing style, dramatically improves the result.
Here we give the AI an example of the data format so it builds around it correctly.
"Render a list of products as cards.
Here's the data each product looks like:
{ name: 'Mug', price: 12, inStock: true }
Show the name, a '$' price, and an 'Out of stock'
badge when inStock is false."Putting It All Together
Now stack all four ingredients into one clear prompt. This is what a professional vibe-coder hands to Bolt or Lovable to get a working app fast.
Read it slowly — see the goal, context, constraints and example all in one place.
"Build a daily water-tracker web app. (GOAL)
Use plain HTML/CSS/JS, no frameworks, single file. (CONTEXT + CONSTRAINTS)
It should let me tap a '+1 glass' button up to 8 times and
show progress as a filling bar. Save progress in localStorage
so it survives a refresh. (CONSTRAINTS)
Example look: big number '3 / 8 glasses' centered at the top,
calm blue theme. (EXAMPLE)"A Tiny Result You Can Read
From a prompt like that, the AI might generate a function like this. You don't have to write it — but learning to read it helps you ask for better changes later.
This snippet is self-contained JavaScript, so you can run it and watch the count grow.
let glasses = 0;
const goal = 8;
function addGlass() {
if (glasses < goal) glasses++;
return glasses + ' / ' + goal + ' glasses';
}
console.log(addGlass());
console.log(addGlass());
console.log(addGlass());Order Matters Less Than Clarity
You don't have to write the ingredients in a strict order. The AI reads the whole prompt. What matters is that each ingredient is clear and present.
A handy habit: write the goal first, then add context, constraints and examples as bullet points underneath. Bullets keep the AI from missing a requirement.
Goal: Add a dark-mode toggle to my settings page.
Context: React app, Tailwind CSS, file is Settings.jsx.
Constraints: Remember the choice in localStorage.
Example: A small moon/sun switch in the top-right corner.What Happens When an Ingredient Is Missing
Skip an ingredient and the AI fills the gap with a guess:
- No goal → it asks 'what do you want?' or builds the wrong thing.
- No context → it may pick a framework you don't use.
- No constraints → it over-engineers with extra libraries.
- No example → the layout or format surprises you.
If a result feels off, ask yourself: which ingredient did I forget?
Your Prompt Template
Keep this template handy. Paste it into Cursor, Claude Code or any builder and fill in the blanks. Over time it becomes second nature.
Build / Add / Fix: ____________________ (GOAL)
My setup: ____________________ (CONTEXT)
Rules:
- ____________________ (CONSTRAINTS)
- ____________________
Example of what I want:
____________________ (EXAMPLE)Quick Check
Which prompt ingredient tells the AI about the tech you're already using and what files exist?
Recap: The Anatomy of a Build Prompt
You now know the four ingredients of a prompt that gets great code on the first try:
- Goal — the one thing to build
- Context — your tech, files and audience
- Constraints — rules and limits
- Examples — the shape you imagine
When a result disappoints, find the missing ingredient and add it. Next up: how being truly specific turns vague code into exactly what you pictured.
Domande Frequenti
La lezione «Anatomia di un buon prompt di build» è gratuita?
Sì — il testo completo di «Anatomia di un buon prompt di build» è gratuito qui sul web. Per esercitarvi in modo interattivo (un editor di codice integrato e un tutor IA 24/7) e sbloccare il resto del corso Vibe Coding, passa a CoddyKit PRO. Il corso Vibe Coding include 4 lezioni in totale.
Cosa imparerò in «Anatomia di un buon prompt di build»?
Obiettivo, contesto, vincoli ed esempi Eserciti Vibe Coding con codice pratico che esegui direttamente nel browser, e un tutor IA 24/7 risponde alle tue domande mentre lavori sulla lezione.
Ho bisogno di esperienza per iniziare Vibe Coding?
Non è richiesta alcuna esperienza precedente. Vibe Coding su CoddyKit è strutturato per principianti e studenti avanzati, quindi puoi iniziare da qui o dall'inizio e procedere al tuo ritmo. Questa è la lezione 1 di 4.
Quanto tempo richiede la lezione «Anatomia di un buon prompt di build»?
La maggior parte delle lezioni CoddyKit richiede circa 5–10 minuti. Ogni lezione è breve e interattiva, quindi fai progressi costanti e riprendi esattamente da dove hai lasciato su web e app.
Posso scrivere ed eseguire codice in questa lezione Vibe Coding?
Sì. Ogni lezione Vibe Coding include un editor di codice integrato, quindi scrivi ed esegui codice reale direttamente nel tuo browser e ricevi feedback istantaneo dall'IA — nessuna configurazione locale necessaria.
Tutte le lezioni di questo corso
- Anatomia di un buon prompt di build
- Essere specifici
- Fornire contesto all'IA
- Iterare su un prompt