Summary: how to brief your AI with your brand book
Properly briefing your AI with your brand book radically changes the quality of outputs. It's not a question of a magic prompt. It's a question of the structure of the document loaded and how the session is initialized. This article details the complete method: how to structure the brand book for AI, how to initialize it correctly, and concrete prompts for the most frequent daily uses. Wiiv is a strategic branding and packaging agency based in Paris, operating in Bordeaux, Lyon, and Milan.
How to brief your AI with your brand book (complete method and prompts)
A brand book in AI is the difference between an assistant that does what you ask and an assistant that knows your brand. Both are useful. Only one is truly effective.
The principle is simple. The brand book contains everything the AI needs to know about the brand to produce in the right tone, for the right target, with the right words. It is loaded into the AI once. The AI remembers it for the entire session or, with the right tools, for all subsequent sessions. And every piece of content produced after that is anchored in the brand's identity, not in the category average.
What changes everything: how the brand book is structured to be ingested by an AI, and how the session is initialized to ensure the AI has properly integrated the context before producing anything.
Preparing your brand book for AI
A classic brand book is designed to be read by humans. It is laid out, illustrated, and organized for linear reading. For an AI, this is the wrong format. AI doesn't need moodboards. It doesn't need illustrated double pages. It needs dense, structured text, formulated as precise answers to precise questions.
Here's how to structure the AI-ready document. Each section should answer a direct question.
Who is the real target? Not demographics. The complete psychographic portrait: their values, their purchasing habits, what they seek beyond the product, what builds their trust, what makes them flee. The more precise, the better the AI understands who it's talking to.
What words does the brand systematically use? A complete list of terms that appear in all brand content. These words create the semantic territory. The AI will naturally use them in its outputs without us needing to specify them in each prompt.
What words does the brand never use? This is often the most useful list. Terms saturated in the sector that the brand avoids. Formulations that are too generic or too competitive. Words contrary to values. This list is a safeguard that the AI will automatically apply.
What is the level of familiarity depending on the context? Informal or formal address? Humor or seriousness? Closeness or professional distance? Does this level change depending on the medium (more formal in email, closer on social media)? These rules must be explicit.
What is the brand essence in one operational sentence? Not the full manifesto. The sentence that states why the brand exists and how it differentiates. This is the anchor the AI uses to evaluate whether content is within the brand's territory.
What are the values with their concrete prohibitions? Not just "benevolence." "Benevolence: the brand does not judge, does not pressure, does not create anxiety. It never says that such a choice is bad for the buyer. It does not create an artificial sense of urgency."
Our complete article on the AI-ready brand book details each section with concrete examples.
Properly initializing the AI session
Loading the brand book into the AI is not enough. You need to verify that the AI has integrated it before starting to produce. An AI that has "read" the brand book without truly assimilating it produces outputs that seem correctly briefed but subtly drift as soon as something more complex is requested.
The initialization prompt serves to verify this assimilation. It forces the AI to reformulate what it has understood in its own words, which immediately reveals whether it has grasped the nuances or merely skimmed the document.
I will load my brand's complete brand book for you. Read it entirely and memorize each section before responding to anything. Once read, validate your understanding by answering exactly these five questions:
1. Describe my actual target in three sentences from their own perspective, not from mine. What are they truly looking for beyond the product?
2. Quote the five words my brand systematically uses and the five words it never uses. Explain why for each.
3. Give me an example of a sentence my brand would say in an Instagram post. Then the same idea formulated in a way my brand would never say. Explain the difference.
4. If someone asks me to run a "last chance, limited stock" promotion, is that consistent with my values? Why?
5. My brand essence in one sentence. Not the brand book's exact words. Your reformulation of what you have understood.
If any of your answers are hesitant or generic, tell me. We will review together before starting to produce anything.
Here is my brand book: [PASTE COMPLETE BRAND BOOK HERE]
Prompts for daily use
Once initialization is validated, here are concrete prompts for the most frequent uses. Each prompt assumes that the brand book has been loaded and validated beforehand.
Social media content
Based on the brand book you have read, generate [NUMBER] posts for [PLATFORM: Instagram / TikTok / LinkedIn] on the following topic: [TOPIC OR ANGLE].
Constraints:
- Length: [SHORT <100 words / MEDIUM 100-200 words / LONG >200 words]
- Post objective: [AWARENESS / ENGAGEMENT / TRAFFIC / SALES]
- Call to action: [YES — WHICH ONE / NO]
For each post:
1. Check that no forbidden words from the brand book are used.
2. Check that the post could not belong to a direct competitor. If so, rephrase.
3. Rate consistency with the brand's tone of voice out of 10, with a justification sentence.
Ad copy
Based on the brand book you have read, generate 15 ad hooks for Meta Ads for the following product: [PRODUCT NAME AND DESCRIPTION].
Objective of the hooks: stop the scroll. Not to sell directly. Conversion happens on the landing page.
Format: maximum 125 characters per hook.
Target: as defined in the brand book.
Organize the 15 hooks into 3 groups:
- Group 1 (5 hooks): problem angle — the target recognizes a situation they are experiencing
- Group 2 (5 hooks): desire angle — the target imagines the benefit they want
- Group 3 (5 hooks): identity angle — the target identifies with the brand's universe
For each hook, identify which emotional signal it activates. And indicate if it could belong to a competitor. If so, rephrase until it is distinctively within the brand's territory.
Customer service responses
Based on the brand book you have read, write standard customer service responses for the five following situations. Each response must be in the brand's exact tone of voice, even (especially) when the situation is difficult.
Situations:
1. Dissatisfied customer with a product that does not meet their expectations
2. Refund request outside the legal deadline
3. Late delivery with an aggressive complaint
4. Negative public review on social media
5. Question about an ingredient or technical composition that you don't fully master
For each response:
- Verify that the tone remains consistent with the brand's register, even in the face of aggression
- Verify that no forbidden words are used
- Add a "short" version (<50 words) and a "developed" version (>100 words) for each situation
Product descriptions
Based on the brand book you have read, write three versions of descriptions for the following product: [PRODUCT NAME + KEY FEATURES].
Version 1 — Ad hook (15 words max): must stop the scroll, create desire, not describe the product.
Version 2 — Product sheet (80 to 120 words): main benefit first, features in support, call to action in the brand's tone.
Version 3 — SEO (200 to 250 words): naturally include the following keywords: [LIST OF KEYWORDS]. Same tone of voice as the previous two versions.
For each version: check for substitutability (could this description belong to a competitor?). If so, identify the generic element and rephrase until the description is distinctively within the brand's territory.
Creative brief for photographer or videographer
Based on the brand book you have read, write a complete creative brief for a [PHOTO / VIDEO] shoot of the following product: [PRODUCT NAME].
The brief must cover:
1. Artistic direction: general atmosphere, visual references consistent with brand guidelines
2. Visual tone of voice: warm or cold, close or distant, dynamic or calm, natural or studio
3. Color palette to respect and colors to avoid
4. Human presence: yes or no, what profile, what type of relationship with the product
5. Required formats: [LIST OF FORMATS ACCORDING TO CHANNELS: Instagram square, vertical story, white background product sheet, etc.]
6. What we absolutely do not want: industry visual codes to avoid to not resemble competitors
7. Three examples of priority shots with precise descriptions of each
The most frequent errors after loading the brand book
Loading the brand book does not guarantee perfect outputs. There are frequent errors that cause the AI to drift despite the loaded context.
Asking too much in a single prompt. The more loaded a prompt is, the more the AI tends to prioritize the most obvious elements and neglect the nuances of the brand book. One prompt per task, one task at a time.
Not asking for verification. The AI does not spontaneously check if what it produces is consistent with the brand book. You must explicitly ask it to check for substitutability and forbidden words. The prompts above all include this request. This is intentional.
Accepting the first output without iteration. The first output is a starting point. You can ask the AI to make a text shorter, more direct, closer or more distant, more in a specific aspect of the tone of voice. The AI can iterate from the brand book without losing track of brand identity.
Forgetting to reload the brand book when the session changes. Outside of tools with persistent context (Claude Projects, custom GPTs), the brand book must be reloaded for each new session. An AI that no longer has access to the brand book reverts to its old habits and produces generic content.
To go further on how to specifically use Claude for your brand, our article on AI as a branding agent details the mechanisms. And to build a brand book designed to be used with AI, Wiiv's AI branding page presents the complete approach.
Frequently Asked Questions
Which AI works best with a brand book?
Claude, ChatGPT, and Gemini all work well with a properly structured brand book. Claude is often preferred for consistency in long texts and the ability to maintain precise rules across many outputs. Claude Projects allows you to load a brand book that persists between sessions, eliminating the need to reload it each time. The quality of outputs depends more on the structure of the brand book than on the tool used.
Do I need an entire brand book or are a few sections sufficient?
The more complete the brand book, the better the outputs. The most critical sections for AI: the actual target (precise psychographic portrait), authorized and forbidden words, tone of voice with its variations depending on context, and brand essence. If only a part can be loaded, these four sections should be prioritized.
Can AI replace a content writer with the brand book?
For about 70 to 80% of standard content production tasks, yes. Social media posts, product descriptions, customer service responses, ad copy: AI with a good brand book produces directly usable outputs for these topics. What it doesn't replace: strategic positioning, long editorial content that requires a real point of view, and creative decisions that require brand intuition.
How do I know if the AI has properly integrated the brand book?
By using the initialization prompt in this article. If the AI cannot reformulate the target in its own words, cannot quote forbidden words with their reasons, and cannot detect if an ad hook belongs to the brand or to the competition: it has not truly integrated the brand book. You need to restart with a better structured document.
Does Wiiv build brand books ready to be used with AI?
Yes. This is one of the central deliverables of every Wiiv project. The strategic brand book (for humans and providers) and the AI-ready brand book (for AI tools) are built from the same Deepbranding. Wiiv's AI branding page details the deliverables and the approach. And the online quote tool allows you to estimate the budget according to the project scope.
