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OtherClaudeChatGPTUniversalAvailable in The Complete Creator Toolkit

Brand Voice Codex

Paste your best writing, get a custom voice profile that makes Claude, ChatGPT, and Gemini write exactly like you — across every platform.

CreatorSkills

Maker

No reviews yet

Updated May 5, 2026

About this Skill

Every AI tool writes the same way: helpful, slightly formal, and completely generic. Your audience can tell. Paste 3–5 samples of your actual content — scripts, captions, tweets, emails — and this skill reverse-engineers how you write.

It captures your word choices, sentence rhythm, humor, and how your tone shifts between Twitter and YouTube descriptions. Then it builds a voice profile you can paste into any AI tool so everything it writes sounds like you.

What you get:

A portable voice profile that works in Claude, ChatGPT, and Gemini
Platform-specific variations: long-form videos, social posts, newsletters, and email
Voice rules you can share with editors, ghostwriters, or VAs
Before/after comparisons so you can hear the difference immediately

No more rewriting every AI draft to sound like a human. Feed it your voice once, use it everywhere.

Perfect for creators who use AI daily but are tired of stripping out the robot voice before hitting publish.

Skill Preview

Included Files (4)

SKILL.mdprimary
README.mdguide
EXAMPLE.mdmodule
TEMPLATES.mdmodule

Brand Voice Codex — Core Instructions

Your Role

You are a brand voice analyst and copywriting strategist. Your specialty is reverse-engineering how a creator communicates — their vocabulary, rhythm, humor, quirks, and instincts — and codifying all of it into a portable voice guide.

Most AI voice work is surface-level. "Be casual and friendly." That describes half the internet. Your job is to go deeper. You study the specific words someone gravitates toward, the sentence structures they default to, the way their energy shifts between a YouTube intro and an Instagram caption. You build a profile so detailed that any AI tool reading it can produce output that the creator looks at and thinks: "Yeah, that sounds like me."

You are not here to improve anyone's voice. You are not a writing coach. You are a mirror. Your job is to capture what already exists — accurately, specifically, and without judgment.

How to Gather Input

What You Need

To build an accurate Voice Codex, you need real content samples. The more varied, the better.

Showing 8% of skill content

Try saying...

“Here are 5 of my YouTube scripts [paste]. Figure out how I write and build me a voice profile”

“Analyze my writing style from these tweets and Instagram captions — I want to use this in every AI tool I have”

“I write differently on LinkedIn vs Twitter. Help me document both versions of my voice”

“Read my last 3 newsletter issues and tell me what makes my writing style distinct”

What's Included (4 Files)

SKILL.mdCore

README.mdGuide

EXAMPLE.mdModule

TEMPLATES.mdModule

What You Get

Quick Install

Copy, paste, done. You're set up in under a minute.

Made by creators, for creators

Every skill here came out of a real content workflow, not a prompt engineering course.

One payment, yours forever

No subscription, no recurring fees. Pay once, use it as long as you want.

How to Install

Add as project knowledge in Claude.ai

Copy the skill content
Click the "Copy to Clipboard" button below
Open Claude Projects
Go to claude.ai → click "Projects" in the sidebar → create or open a project
Add to Project Knowledge
Click "Project knowledge" → "Add content" → "Add text" and paste the skill
Start using the skill
Open a conversation in the project — Claude automatically uses the skill!

Pro Tip

You can add multiple skills to one project, or create separate projects for different workflows. The skill instructions apply to every conversation in that project.

Purchase this skill to access installation

Open Claude Projects

$19.00

One-time payment

Est. saves ~4.0h/month

Instant deliverySecure checkout30-day guarantee

Or save 82% with The Complete Creator Toolkit →

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Frequently Asked Questions

Hit the copy button above, paste it into your Claude Project's instructions. Every new chat in that project will use it automatically.

Works Great With

ClaudeChatGPTUniversal

Audience Persona Builder

$14.00

Other·New

Saves ~4.0h/month

Figure out who actually watches your stuff. A guided interview that turns your hunches into a real audience profile.

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Brand Voice Codex — Core Instructions

Your Role

You are not here to improve anyone's voice. You are not a writing coach. You are a mirror. Your job is to capture what already exists — accurately, specifically, and without judgment.

How to Gather Input

What You Need

To build an accurate Voice Codex, you need real content samples. The more varied, the better.

Brand Voice Codex

About this Skill

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