Build Your Claude Brand Voice Skill in Minutes
Stop rewriting prompts from scratch. Train Claude once — and every article, post, and newsletter comes out sounding exactly like you.
You know that feeling when you spend 20 minutes wrestling with an AI prompt, only to get something that sounds like a corporate robot? Yeah. That stops today.
The Claude Brand Voice Skill is your secret weapon. It's a custom AI agent that lives in your Claude sidebar, learns how you write, and applies your tone to every piece of content — without you lifting a finger on prompt engineering ever again.
Think newsletters that sound like you. Social posts that sound like you. Articles that sound like you. All done in seconds. Not hours.
This guide walks you through the exact five steps to build your first Claude Brand Voice Skill. It's faster than you think, simpler than it sounds, and the payoff is massive. Let's go.
What You Need Before You Start
Two things. That's it. Get these sorted and you're ready to build.
First, you need a Claude Pro subscription. The free tier won't cut it here — the "Customize" and "Skills" features are Pro only. If you're serious about saving time on content, this subscription pays for itself fast.
Second, download the Skill Starter ZIP file from the Basic Bananas team. This is the foundational file that teaches Claude how to build your custom skill. Grab it now and save it somewhere you can find it: Download the Skill Starter ZIP.
- Claude Pro subscription (paid tier)
- Skill Starter ZIP file downloaded to your computer
- 3 to 5 examples of your best writing ready to upload
- Five minutes of focused time — seriously, that's all
What counts as a writing sample?
Newsletters, blog posts, social captions, email sequences — anything written in your natural voice works brilliantly.
What file formats does Claude accept?
Word docs, PDFs, and screenshots of social posts. Mix and match to give Claude a well-rounded picture of your style.
Why Pro only?
The Skills feature requires Claude's advanced customisation layer — it's only available on the paid plan. Non-negotiable, but worth every cent.
Can I update the skill later?
Absolutely. As your brand evolves, you can rebuild the skill with fresh samples. Think of it as a living, breathing version of your voice.
Access the Claude Customization Menu
Claude hides the good stuff behind one simple menu. Here's exactly where to find it.
Open Claude.ai and log in to your Pro account. Head to your Profile Icon or the Settings menu in the top corner. Click Customize from the dropdown — this is the control centre for everything you're about to build.
Once you're inside Customize, look for the button that says Create a New Skill and click it. You're now standing at the door to your very own AI content assistant. Walk on through.
- Open Claude.ai and log in to your Pro account
- Click your Profile Icon or navigate to Settings
- Select Customize from the dropdown menu
- Click Create a New Skill to begin
Can't find Customize?
Double-check you're logged in to a Pro account. If you're on the free tier, this menu won't appear — upgrade first.
How many skills can I build?
Claude Pro lets you build multiple skills. Start with your Brand Voice Skill, then explore others like a social media formatter or newsletter builder.
Where does the skill live once built?
Right in your sidebar — accessible from any new chat with a single click. It's always there when you need it.
Is this different from Claude Projects?
Yes. Skills are specialized agents with specific instructions. Projects are broader workspaces. Skills are sharper, faster, and purpose-built.
Upload the Skill Starter File
This ZIP file is the engine. Upload it and Claude gets the instructions it needs to build your custom skill.
Inside the "Create a New Skill" area, click the Plus (+) sign at the top. Select Upload Skill and choose the Skill Starter ZIP file you downloaded earlier. Give it a moment — Claude is reading the instructions contained inside and getting ready to help you build something great.
Once it's installed, a brand new Skill Starter agent will appear and be ready to chat. This is your personal AI skill-builder. It knows exactly what to ask you next. Trust the process.
- Click the Plus (+) sign inside the Create a New Skill area
- Select Upload Skill from the options
- Choose your downloaded Skill Starter ZIP file
- Wait for the Skill Starter agent to confirm it's ready
What if the upload fails?
Re-download the ZIP file from the Basic Bananas link and try again. Make sure the file hasn't been unzipped — upload it as-is.
What does the ZIP file contain?
It contains the foundational instructions that tell Claude how to guide you through building a custom skill. Think of it as the blueprint.
Do I need to unzip the file first?
No — upload it as a ZIP file directly. Claude handles the rest automatically. Don't overthink it.
Will this affect my other Claude chats?
Not at all. Skills are contained in their own space. Your regular Claude conversations stay completely separate.
Define Your Claude Brand Voice Skill
Tell the Skill Starter what you want. One sentence is all it takes to kick things off.
Start a new chat with your Skill Starter agent. Type something like: "I want to build my first skill. I'd like to create a Brand Voice skill to help with my marketing." The agent will ask what you plan to use it for — tell it: newsletters, articles, social media, all of it.
The more context you give it, the smarter the skill becomes. Don't be shy. Tell it about your audience, your tone, your business. This conversation is the foundation of your Claude Brand Voice Skill — make it count.
- Start a new chat with the Skill Starter agent
- Tell it you want to build a Brand Voice skill for marketing
- Describe your intended uses — newsletters, articles, social posts
- Share context about your audience and tone if prompted
What if I want more than one use case?
Tell it everything. "I want this for newsletters, Instagram captions, blog posts, and client emails." More context equals a more versatile skill.
How specific should I be?
As specific as you like. Mention your industry, your audience's age range, whether you're formal or casual. The more detail, the better the output.
Can I build a skill for a team member's voice too?
Yes — just upload their writing samples in the next step. You can build separate skills for different team members or content types.
What if I'm not sure how to describe my voice?
That's fine — skip straight to uploading your writing samples in Step 4. Claude will figure out your voice from your actual work.
Train Claude Using Your Writing Samples
This is where the magic happens. Feed Claude your best work — and it learns to write just like you.
The Skill Starter will prompt you to provide writing examples. Click the Paperclip (Attachment) icon in the chat box and upload 3 to 5 samples of your best work. Word docs, PDFs, screenshots of social posts — all fair game. The more variety you give it, the more accurate the skill becomes.
Claude will analyse these files and identify your tone, your sentence rhythm, your favourite phrases, and your unique style. It's not just reading your words — it's learning to be your voice. By the end of this step, your Claude Brand Voice Skill is almost fully trained.
- Wait for the Skill Starter to prompt you for examples
- Click the Paperclip icon in the chat box
- Upload 3 to 5 of your best writing samples
- Let Claude analyse and identify your unique style markers
What are the best samples to upload?
Your most "you" pieces. Pick content where you felt proud of how it sounded — those are the ones that capture your real voice best.
Does quantity matter?
Quality beats quantity here. Three great, representative samples outperform ten average ones every time. Be selective.
Can I include samples from different platforms?
Absolutely. Mix a newsletter excerpt, a blog intro, and a few social posts. Cross-platform samples give Claude a fuller picture of your range.
What if my writing has evolved over time?
Upload your most recent work — that's the voice you want Claude to replicate. Older samples from a different era of your brand can confuse the output.
Finalize and Deploy Your Brand Voice Skill
The Skill Starter hands you your finished skill file. Install it, name it, and you're officially done.
After analysing your samples, the Skill Starter generates a brand new, personalised Skill File. Download it. Then head back to Customize > Create New Skill > Upload Skill and install this new file. This is the finished product — your actual Brand Voice Skill, built specifically around you.
Give it a name you'll love. "Frankie's Voice." "Sarah's Brand." "[Your Name]'s Marketing Brain." From this moment on, every time you open Claude, your skill is sitting in the sidebar ready to go. Click it. Say "Edit this article in my voice." Watch it work. That feeling? That's freedom.
- Download the personalised Skill File from the Skill Starter chat
- Go back to Customize and select Create New Skill
- Upload your new Brand Voice Skill file
- Give it a memorable name and save it
How do I use the skill once it's installed?
Click your skill in the sidebar, paste in your content, and type a simple instruction: "Edit this in my voice" or "Write a social post about this topic." Done.
Can I tweak the skill if something feels off?
Yes. Go back to the Skill Starter, add more samples or feedback, generate a new Skill File, and reinstall it. Takes 10 minutes to update.
Can I share my skill with a team member?
Yes — send them the Skill File and they can install it on their own Claude Pro account. Great for keeping a consistent brand voice across a team.
What can I ask the skill to do?
Edit articles, draft newsletters, write social captions, repurpose blog posts, create email sequences — all in your exact voice, every single time.
The 5-Step Claude Brand Voice Skill — At a Glance
| Step | What You Do | Time Required | Setup Effort | SME Benefit |
|---|---|---|---|---|
| Prerequisites | Get Claude Pro + download the Skill Starter ZIP | 5 mins | Low | Very High |
| Step 1 | Find the Customize menu and click Create a New Skill | 2 mins | Low | High |
| Step 2 | Upload the Skill Starter ZIP file | 2 mins | Low | Very High |
| Step 3 | Tell the agent you want a Brand Voice skill | 2 mins | Low | Very High |
| Step 4 | Upload 3–5 writing samples for Claude to analyse | 5 mins | Medium | Very High |
| Step 5 | Download, reinstall, and name your finished skill | 3 mins | Low | Very High |
🎯 Which Skills Should You Build Next?
Once your Brand Voice Skill is live, you've unlocked a whole new way of working. Here's what to tackle next based on your biggest content headache.
Frequently Asked Questions
Do I need a Claude Pro subscription to build a Brand Voice Skill?
Yes. The Skills and Customize features in Claude are only available on the paid Pro tier. The free version of Claude doesn't include access to these tools. If you're serious about automating your content, the upgrade is absolutely worth it.
How long does it take to build a Claude Brand Voice Skill from scratch?
Most people complete the full five-step process in under 20 minutes. The biggest time investment is gathering your writing samples — once those are ready, the actual build is fast. Set aside half an hour and you'll be done with time to spare.
What writing samples should I upload to train Claude on my voice?
Upload your most representative, recent writing — pieces where you felt the tone was exactly right. Newsletters, blog posts, social captions, and email sequences all work well. Aim for 3 to 5 varied samples and make sure they're from your current brand era, not years-old content that no longer reflects how you communicate.
Can I update my Brand Voice Skill as my writing style evolves?
Absolutely. Go back to the Skill Starter agent at any time, provide new samples, generate a fresh Skill File, and reinstall it. Your skill can evolve right alongside your brand. Treat it like a living document, not a one-time set-and-forget.
Is the Skill Starter ZIP file safe to use and where does it come from?
The Skill Starter ZIP file is created and provided directly by the Basic Bananas team. It contains the structured instructions Claude needs to guide you through building a custom skill. Download it from the official Basic Bananas link only and upload it directly into Claude as a ZIP — no need to unzip it first.
Can I use my Brand Voice Skill for all types of marketing content?
Yes — that's the whole point. Once your Claude Brand Voice Skill is installed, you can use it to edit articles, write social media posts, draft newsletters, create email sequences, repurpose blog content, and more. All in your voice. All without rewriting the same prompt over and over again.
Ready to Take Your AI Marketing Even Further?
Building your Claude Brand Voice Skill is just the beginning. The business owners who get the best results from AI aren't the ones who know the most — they're the ones who take action first and keep learning as they go.
Join us for our upcoming masterclasses — completely FREE and delivered live on Zoom. We break down the latest marketing tools and strategies into simple, actionable steps you can use in your business the same day. No fluff. No jargon. Just results.
Seats fill fast — grab yours before they're gone.
Keep Levelling Up: View Our Upcoming MasterclassesYou've Got Everything You Need — Now Go Build It
Marketing that sounds like you, created in seconds, without the prompt-engineering headache — that's what a Claude Brand Voice Skill delivers. You now have the exact steps to make it happen.
Download the Skill Starter. Upload your samples. Deploy your skill. And if you're part of the Clever Bunch community, take the challenge: have your skill live within the next seven days. You'll wonder how you ever created content without it.
Want to keep sharpening your marketing brain? Head to the Basic Bananas Marketing Library — it's packed with practical guides, tools, and ideas to help your business grow.
Simple. Practical. Action. 🍌