Most website tools let you go back in and change things: swap a photo, rewrite a line, try a different layout until it feels right. This one does not work that way. The AI reads your brief once and builds the whole site from it in a single pass, so whatever is missing from the brief is missing from the site, and there is no later stage where that gets caught and fixed.

What this means in practice

A normal builder forgives a vague brief because you are there afterwards to correct it. Here, the brief is the only conversation that happens before the site exists. If it does not say who the site is for, the AI has to guess, and a guess is not the same as knowing.

That is not a reason to write a longer brief. A long brief with the wrong things in it still leaves the AI guessing at the parts that matter. It is a reason to write a complete one, which is a different thing.

Give the AI a business and it will make sensible guesses about how that business should look. A landscaper's site can run in greens and photographs of gardens, a law firm's in something quieter, and the AI will make that call from the words you use to describe what you do. Layout works the same way: how many pages a site like yours usually needs, and how they connect, is something it can work out on its own.

What it can work out on its own

Structure and appearance are the parts the AI handles well, because they follow from the kind of site you're describing.

• Which pages a site like yours usually needs, and how they link together
• A colour palette and layout that suit the tone you've described
• Sensible headings and section order within each page

What it needs you to say

None of that helps if the facts underneath are missing, because the AI cannot know your prices, your hours, your address or your story unless you tell it. It can build a page for opening times. It cannot invent the times themselves.

• What you actually do, sell or offer, and to whom
• Prices, hours, locations or anything else specific to your business
• Anything that has to be exactly right, because the build happens once, from the brief you give

The rule of thumb is simple. If it's a judgement about how something should look or fit together, the AI can make it. If it's a fact about your business, it needs to come from you.

Too vague

A brief that just says "a website for my bakery" leaves the AI to guess at the pages you need, the tone you're after, and what a visitor should be able to do once they land on the site. A guess is not the same as a site built around your business. The more you say about who the site is for and what you actually offer, the closer the result lands to what you had in mind.

Too long

A brief is not a business plan. Pages of company history, mission statements and background on how the idea started don't help the build; they bury the handful of facts the AI needs under material it has to wade through first. Say what the site is for, who it's for, and which pages you want, then stop.

Listing what you don't want

"Not too corporate" or "nothing like a template" describes an absence, and there's nothing to build from an absence. Say what you do want instead: the mood you're after, a couple of colours, a site you've seen elsewhere that felt right. Something concrete gives the AI a direction to build in.