Here’s why we have shifted from “brand guides” to “context guides”:
The brand guides SpotOn builds for clients have always gone further than logo rules and color palettes. They are deep, cross-departmental narrative references that explain who a company serves, what it stands for, and how every team should talk about it. Today we call them context guides, AI brand guidelines that people and AI tools can both use to produce their best work.
This evolution becomes critical when we look at current AI marketing trends. Salesforce's 2026 State of Marketing report found that 75% of marketers have adopted AI, yet 84% admit they still run generic campaigns. Bobby Jania, Salesforce's Agentforce Marketing CMO, summed up the disconnect: "Every marketer has access to the same AI models." What separates the results, he said, is relevant context.
Most brand guides describe a brand for people, both visually and through messaging, while AI tools need detailed instructions they can act on. Here we cover what a context guide is, why a traditional brand guide falls short in AI tools, what to include, and a seven-step process to build yours better or let us help.
What Is a Context Guide?
A context guide is an extended version of your brand guidelines written for AI tools. The context guide turns descriptive language into explicit rules, examples, and approved facts that a large language model can follow, so AI-generated content matches your voice, messaging, and positioning.
You may also see this type of reference document called a brand voice guide or a set of brand voice guidelines for AI. Whatever the name, the context guide still serves people too. Writers, designers, sales reps, and new hires get the same clear instructions the AI tools do, which is why SpotOn builds one document for both audiences.
Here is how a context guide compares with a traditional brand guide:
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What They Need
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Content That Works
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Primary audience
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Designers and human writers
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AI tools and the people who prompt them
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Format
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Designed PDF or slide deck
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Plain text or Markdown with clear headings
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Language style
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Descriptive adjectives ("bold yet approachable")
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Explicit behaviors and do/don't rules
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Examples
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Logo usage and color swatches
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Paired on-brand and off-brand rewrites
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Where it lives
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Shared drive or brand portal
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Inside the AI tools the team uses every day
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How often it's updated
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Every few years, often with a rebrand
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Quarterly, or whenever positioning changes
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Why Don't Traditional Brand Voice Guidelines Work for AI Tools?
A traditional brand guide was written for people who can interpret nuance. AI tools follow instructions literally, so vague adjectives, visual-heavy pages, and missing context lead to generic output. Four shortcomings cause most of the problem:
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Adjectives are open to interpretation. "Confident" means little to a model until you attach behaviors, such as leading with the outcome and cutting hedging words.
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Visual-heavy PDFs. Logo clear space and color palettes matter for design, but they give an AI tool nothing to write with.
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Missing context. Most brand guides skip what AI needs most: the audience, the positioning, the proof points, and what not to say.
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Version sprawl. When every team member pastes a different prompt, the brand gets interpreted differently every time.
The bottom line: AI brand guidelines work when every line tells the model what to do.
What Should a Context Guide Include?
A context guide should include eight components: a brand snapshot, voice rules, a vocabulary list, style and formatting rules, audience profiles, positioning and key messages, on-brand and off-brand examples, and guardrails. Each component works best as a short, self-contained section an AI tool can pull on its own.
Brand snapshot
The brand snapshot is three to four plain sentences covering who you are, what you do, and who you serve. It is the elevator pitch an AI tool can reuse in any piece of content.
Example: "SpotOn is a B2B growth marketing agency and HubSpot Platinum Partner based in Tampa. We help healthcare, technology, finance, and professional services companies plan, produce, and perform marketing that drives revenue."
AI brand voice rules written as behaviors
Voice rules turn adjectives into actions. A good AI brand voice rule describes what the writing does on the page, so the model can follow it every time.
Example: Change "confident" to "Use active voice. Lead with the outcome. Avoid hedging words like might or could potentially."
Vocabulary list
A vocabulary list tells the AI tool which terms to use, which to avoid, and which to define for the reader. A three-column table keeps the list easy to scan and easy to update. Here is a sample for a healthcare technology company:
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Preferred Terms
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Avoid
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Define for the reader
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Patients
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Customers
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Value-based care
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Care Teams
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End users
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Interoperability
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Clinical outcomes
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Best-in-class
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AEO (answer engine optimization)
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Style and formatting rules
Style rules work as your AI style guide. They cover the mechanics: punctuation, sentence length, heading format, and how to capitalize product names. Be specific.
Example: "No em dashes. Use the Oxford comma. Keep sentences under 25 words. Write HubSpot with a capital S."
Audience profiles
Audience profiles give the AI tool each reader's role, pain points, knowledge level, and common objections. A CFO evaluating a platform needs different proof than a marketing coordinator learning it.
Positioning and key messages
This section works as a brand messaging guide for AI tools. It lists your differentiators, proof points, and approved statistics, each with its source. When the AI tool has approved facts to draw from, it is far less likely to invent them.
On-brand vs. off-brand examples
Paired rewrites show the AI tool the difference between close and correct. Add a one-line note explaining why the on-brand version works.
- Off-brand: "We might be able to help you potentially improve your marketing results."
- On-brand: "We help B2B teams turn marketing into pipeline."
- Why it works: Active voice, a clear outcome, and no hedging.
Guardrails
Guardrails define what the AI tool should never do like claims you can't make, competitors you don't name, and topics to avoid. Guardrails matter most in regulated industries like healthcare and finance, where one unsupported claim can create compliance risk.
Quick check: If a new hire could read a section and still ask "what does that mean in practice?", the section needs a rule or an example.
How Do You Convert Your Brand Guide Into a Context Guide?
You can convert an existing brand guide into a context guide in seven steps. Start with the guide you already have, then add rules, examples, and testing. Most teams can finish a working first version within a few weeks.
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Audit the current guide. Pull out everything about words, tone, audience, and messaging. Set the visual rules aside for your design team.
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Rewrite every adjective as a do/don't rule. If the guide says "approachable," decide what approachable looks like on the page: second person, short sentences, and no jargon without a definition.
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Add three to five on-brand vs. off-brand example pairs. Pull real copy from your website, emails, and sales materials.
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Write it in plain text or Markdown with clear headings. Short, modular sections let an AI tool pull exactly the part it needs.
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Test it. Give an AI tool the same prompt with and without the context guide, then compare the output side by side.
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Store it in one place every tool can access. That might be a Claude Project, a custom GPT, or the Brand Voice and Brand Identity settings in HubSpot. Keep one master version and update every tool from it.
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Assign an owner and a review cadence. Review the context guide quarterly, or any time your positioning, products, or audience change.
Always/Never: Always update the master context guide first. Never let individual prompts drift into versions of their own.
How Does a Context Guide Help With AEO?
Answer engine optimization (AEO) is the practice of making content easy for AI-powered search tools like ChatGPT, Perplexity, and Google AI Overviews to find, understand, and cite. A context guide supports AEO by keeping the facts about your company consistent everywhere they appear.
Answer engines build their description of a brand from what is published about it. When your website, About page, LinkedIn profile, and directory listings all use the same brand snapshot, product names, and key facts, AI engines get one consistent story to repeat.
Google's own guidance on AI features says no special optimization is required to appear in AI Overviews and AI Mode, and that standard SEO fundamentals still apply. Clear, consistent, accurate content is the foundation. The Salesforce report found that 88% of marketers have already begun optimizing for AI-generated responses, and the context guide becomes the source of truth for that public messaging as well.
Frequently Asked Questions About AI Brand Guidelines
What is the difference between a brand guide and a context guide?
A brand guide describes how a brand looks and sounds for designers and human writers. A context guide turns that description into explicit rules, examples, and approved facts that AI tools can follow. Many companies keep both, with the context guide covering voice, messaging, audience, and guardrails.
What format should a context guide be in for AI tools?
Plain text or Markdown works best for a context guide. Use clear headings and short, modular sections so an AI tool can find and apply each part. Designed PDFs and image-heavy slides are harder for AI tools to read reliably.
How long should an AI context guide be?
Start with a condensed core of two to three pages covering the brand snapshot, voice rules, vocabulary, and guardrails. Add longer sections for audience profiles, positioning, and examples as needed. A short core is easier to maintain and easier for AI tools to apply consistently.
How often should you update AI brand guidelines?
Review AI brand guidelines at least quarterly, and update them whenever your positioning, products, or audience change. Assign one owner so updates happen on schedule and every AI tool your team uses pulls from the same current version.
How do you keep a consistent brand voice across ChatGPT, Claude, and HubSpot AI tools?
A context guide written in plain text or Markdown works in ChatGPT, Claude, HubSpot, and most other AI tools. Keep one master version, load it into each tool's project, custom instructions, or brand settings, and update every tool when the master changes. Layer prompt engineering on top for task-specific instructions.
Build Your Context Guide This Month
A context guide is how a brand stays consistent when dozens of people and AI tools create content at the same time. Start with the brand guide you already have, rewrite the adjectives as rules, add examples, and test the results.
SpotOn builds context guides for B2B companies in healthcare, technology, finance, and professional services as part of our content strategy work. Talk to SpotOn about turning your brand guide into a context guide.
