How to Make Claude Write Like You

Without guidance, Claude writes in a polished, general style. To match your voice, it needs:

• Real examples of your writing
• A clear description of your style
• Rules about what you never do
• Context about your audience
• Feedback on its drafts

Claude can imitate a voice. It cannot invent yours.

Gather 5 to 15 pieces that sound most like you:

• Emails
• Social posts
• Newsletters
• Articles
• Messages to clients
• Scripts or talks

Pick pieces you are proud of, in the formats you want Claude to write.

Prompt:

Analyze these samples of my writing. Describe my voice in specific, observable terms: sentence length, vocabulary, tone, structure, punctuation, how I open and close, phrases I repeat, and things I never do. Quote examples for each point.

Specific observations beat adjectives like “friendly” or “professional.”

Turn the analysis into a short guide:

• Tone in three words
• Typical sentence and paragraph length
• Words and phrases you use
• Words and phrases you never use
• How you open and close
• Formatting habits
• Two or three short example passages

Rules plus examples beat rules alone.

Claude’s custom styles save a voice you can turn on in any chat.

• Open the + menu in a chat
• Choose Use style, then Create & edit styles
• Select Create custom style
• Add writing examples or paste your samples
• Review and edit the style description

Claude may summarize your samples into a generic description. Edit it to keep your actual phrasing and rules.

Add lasting preferences in settings so they apply everywhere:

• Your role and audience
• Spelling preference, such as American or British
• Formatting rules
• Phrases to avoid

Create a Writing Project with:

• Your voice guide
• Your best samples
• Audience notes
• Templates for common formats

Project instructions such as “Follow the voice guide exactly” keep every chat in that Project on voice.

For repeated formats, such as a weekly newsletter, create a skill with your voice guide, examples, and template. Anthropic’s skill-creator can help you build it.

List what you never want to see, such as:

• Hype words you would not use
• Unnecessary openers like “Great question”
• Overused transitions
• Excessive em dashes or emoji
• Generic conclusions
• Lists where you would write prose

Telling Claude what not to do is as important as what to do.

The best drafts start from your ideas, not a topic.

• Dictate or jot rough notes
• Include your opinions and stories
• Add specific details only you know
• Then ask Claude to shape them in your voice

Your experiences are what make writing sound like you.

• “Shorter sentences, like my samples.”
• “I would never say this phrase. Remove it.”
• “Too formal. Write it like the email in sample 3.”
• “Keep my opening line exactly.”

Add recurring corrections to your voice guide so you only make them once.

If a sentence feels unnatural to say, it will feel unnatural to read. Fix it before publishing.

• Never let Claude invent experiences or results
• Check every fact and number
• Disclose AI help where your audience or employer expects it
• Keep your opinions your own

Claude can match your style. Only you can supply your truth.

Collect

Gather your best writing.

Analyze

Describe your voice precisely.

Codify

Write a voice guide.

Save

Custom style, profile, Project, or skill.

Draft

Start from your raw thoughts.

Edit

Give specific feedback.

Update

Add corrections to the guide.

Write this in my voice, following my voice guide and samples exactly. Use my raw notes below as the content. Do not add facts, stories, or opinions I did not give you. Match my sentence length, vocabulary, and structure. Avoid every phrase on my banned list. After the draft, list any sentences you are unsure sound like me. Notes: [your notes]