Build Your Own Claude AI Ghostwriter in 15 Minutes
Create a personalized AI writing assistant that captures your unique style in just 15 minutes, allowing you to save time while maintaining authenticity in your content creation.

by Doug Sandstedt

What You Need and Quick Setup Process
What You Need
  • Claude account (Claude 3.5 Sonnet or Claude 3 Opus recommended)
  • 3-5 samples of your best writing (at least 1,500 words total)
  • 15 minutes of focused time
Quick Setup Process
Step 1: Gather Writing Samples (3 minutes)
  1. Select 3-5 pieces that best showcase your writing style
  1. Include different content types if possible (posts, articles, emails)
  1. Compile them in a single document
  1. Export as PDF
Step 2: Upload to Claude (1 minute)
  1. Start a new Claude conversation
  1. Click "Add content" and upload your PDF
  1. Confirm successful upload
Step 3: Request Style Analysis (1 minute)
Copy and paste this prompt:
Analyze this writing style in detail. Focus on sentence structure, vocabulary, tone, pacing, and unique elements. Be thorough as you'll need to replicate this style later.
Step 4: Generate Style Prompt (2 minutes)
When Claude finishes the analysis, respond with:
Transform this analysis into a comprehensive style guide prompt (800-1200 words) that will enable you to write exactly like me. Include specific instructions about vocabulary, sentence structure, transitions, paragraph length, and any unique quirks.
Step 5: Test the Style (3 minutes)
When you receive the style guide, respond with:
Using this style guide, write a [social post/email/article intro] about [topic relevant to your field]. Keep it under 200 words.
Step 6: Quick Refinement (3 minutes)
Rate the sample (1-10) and provide specific feedback:
That's a [X/10]. You captured my [what worked well] but missed my [what needs improvement]. Please revise the style guide to better reflect these elements.
Step 7: Save Your Ghostwriter (2 minutes)
After Claude provides the updated style guide:
  1. Save the prompt somewhere secure (password manager, note app)
  1. Ask Claude to create a 100-word "refresh" version for quick reference
How to Use Your Ghostwriter and Pro Tips
How to Use Your Ghostwriter
  1. Start a new Claude conversation
  1. Paste your style guide prompt
  1. Request content: "Write a [content type] about [topic]"
  1. Review and personalize before publishing
Pro Tips for Better Results
  • Use the most authentic samples of your writing
  • Be specific in your feedback during testing
  • Always review AI-generated content before publishing
  • Update your style guide quarterly with new samples
  • For longer pieces, use your "refresh" prompt midway
Your ghostwriter is now ready to help you create content that sounds authentically like you, saving hours of writing time while maintaining your unique voice!