AI Voice Profile Writer: Make AI Write in Your Voice

Free 15-minute quiz that maps your writing voice into four portable files: a SKILL.md for Claude Code, a system prompt for ChatGPT or Claude, an AGENTS.md for Cursor, and a JSON export. One quiz, one profile, works across every LLM you use.

A portable writing-voice profile for ChatGPT, Claude, Cursor and Claude Code

Created by Emil Hjorth • Version 33 • 10 steps

Use this app

What you get

  • Free 15-minute quiz that maps your writing voice into four portable files: a SKILL.md for Claude Code, a system prompt for ChatGPT or Claude, an AGENTS.md for Cursor, and a JSON export. One quiz, one profile, works across every LLM you use.

Integrations

  • ai

How it works

  • Read your quiz answers
  • Check the required fields
  • Analyse your writing patterns with AI
  • Build your Voiceprint 1.6.0 profile
  • Save profile to your workspace
  • Generate SKILL.md for Claude Code
  • Generate ChatGPT / Claude system prompt
  • Generate AGENTS.md for Cursor
  • Generate profile JSON export
  • Show downloads and preview

Make ChatGPT, Claude and Cursor write in your voice, for free

Answer 15 minutes of questions about how you actually write. Voice Profile Writer maps your voice into four portable files: a SKILL.md for Claude Code, a system prompt for ChatGPT or Claude, an AGENTS.md for Cursor, and a structured JSON export. Drop any one into your LLM of choice and it writes in your voice from that session forward.

No manual prompt engineering. No pasting samples every time. One quiz, one profile, works across every AI tool you use.

What you get

  • SKILL.md: Voiceprint 1.6.0 skill file. Drop in ~/.claude/skills/ and Claude Code writes in your voice instantly.
  • ChatGPT / Claude system prompt (.txt): Paste into ChatGPT custom instructions or Claude project instructions.
  • AGENTS.md / .cursorrules: Project-level rules file for Cursor and Claude Code.
  • JSON export: Structured Voiceprint 1.6.0 data you can feed to any LLM API programmatically.
  • Works across every LLM: ChatGPT, Claude, Cursor, Claude Code, Gemini via API, the same profile reformatted for each.

Pick one, or get all four. Free.

What you need

  • 15 minutes
  • 3+ writing samples (cold emails, LinkedIn posts, DMs, whatever you actually write)
  • Your honest answers about tone, vocabulary, and what makes you cringe

Use your voice profile across AI tools and Breyta flows

The profile is saved to your workspace's voice-profiles table. Pick it as the sender voice in:

How it's different from doing it manually

Most guides tell you to paste your writing samples into ChatGPT and ask it to "analyze your style." That works once, in one chat window, and disappears. Voice Profile Writer produces a durable, structured Voiceprint 1.6.0 schema, a file you own, can version, and can load into any LLM at any time.

Guardrail

This profile belongs to the sender you specify. It will not default to anyone else's voice.

FAQ

How do I make an AI write in my personal voice?

This app uses a 15-minute quiz to analyse your writing patterns, then creates four portable files that define your tone, style, and vocabulary. You can use these files to make AI tools like ChatGPT or Claude write in your exact voice.

What files does the AI Voice Profile Writer generate?

You'll complete a quiz that assesses your writing style. Our AI agent then builds a Voiceprint 1.6.0 profile and generates a system prompt, a JSON export, a SKILL.md for Claude Code, and an AGENTS.md for Cursor.

Can I use my voice profile with different AI models?

Yes, the profile works across all major Large Language Models including ChatGPT, Claude, Cursor, and Gemini. Once you have your system prompt or SKILL.md file, you can paste it into your preferred tool to maintain a consistent style.

How long does it take to set up a voice profile?

The tool is free to use and requires about 15 minutes of your time. After the AI analyses your answers, you can instantly download or preview all your profile files to add them to your workspace.