Voice DNA - AI Lab

What it does

Most "write in my voice" prompts produce a flat caricature. This one doesn't. It analyses your writing across rhythm, vocabulary, structure, and tone - then returns a structured spec you can paste into any future Claude conversation. Drop the spec in once, and Claude writes like you for the rest of the chat.

What you'll get back

A voice profile

Sentence rhythm, vocabulary signatures, structural moves, tone defaults - all observable, all specific.

Things you do / never do

The patterns that make your voice distinctive - and the things you'd never write.

A test passage

A short sample written in your voice, so you can verify the spec actually captures it.

Live preview

What running this looks like

Voice DNA · live demo

The prompt

Copy this into Claude

Built for Claude - characters

Open Claude Download template

How to use it

Copy the prompt above. Open Claude (or use the button).

Paste it as your first message. Claude will ask for your writing samples.

Paste 3-5 samples. Recent posts, emails, captions, drafts - anything you've actually written. Don't overthink it.

Answer 2-3 follow-up questions. Claude will ask short, targeted questions before producing the spec.

Save the spec. Download the template, paste your generated spec into it. Use it as the first message in any future Claude conversation where you want to write in your voice.

Tips for the best result

Use real samples, not your "best" writing

The more honest the input, the more accurate the spec. Pick samples that reflect how you actually write day-to-day, not the ones you spent an hour polishing.

Mix formats if you have them

A LinkedIn post, a casual email, a blog paragraph - different formats reveal different parts of your voice. The wider the sample, the richer the spec.

Refine over time

Your first spec will be good but not perfect. Edit it. Cross out anything that doesn't sound like you. Add things you noticed it missed. Voice DNA is a living document.