ghostwriter

Convert sent writing into a personal style guide for drafting.

15|1|Updated May 28, 2026
One-click install
npx skills add https://github.com/joshferrara/ghostwriter --skill ghostwriter-joshferrara
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ghostwriter
Source: https://github.com/joshferrara/ghostwriter/tree/main
Command: npx skills add https://github.com/joshferrara/ghostwriter --skill ghostwriter-joshferrara

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

Ghostwriter converts your sent writing into a personal writing style guide that an agent can draft in your voice.

Core Features & Use Cases

  • Generate mode to build a standalone guide (usually ghostwriter-guide.md) from emails, texts, Slack, and other writing you've sent.
  • Use mode to draft, rewrite, or edit in your voice using the generated guide, across long-form emails and short-form messages.
  • Vendor-neutral and privacy-first: the guide is standalone and can be pasted into any agent; Humanizer acts as a secondary cleanup guardrail.

Quick Start

Build my Ghostwriter guide from my sent messages.

Frequently Asked Questions about ghostwriter

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate a personal writing style guide from past emails and messages?

To generate a personal writing style guide, you provide your sent emails, texts, and Slack messages to the Generate mode. It analyzes this content to create a standalone style guide that captures your unique voice for AI drafting.

Can I draft long-form emails and short-form messages in my own voice using an AI agent?

Yes, you can draft long-form emails and short-form messages in your voice by applying the generated style guide in Use mode. The agent uses this guide to draft, rewrite, or edit content that matches your personal writing style.

How does a privacy-first ghostwriter handle my personal writing samples?

A privacy-first ghostwriter processes your sent writing locally to build a standalone guide, ensuring your data is not exposed to external vendors. The resulting guide is vendor-neutral and can be pasted directly into any AI agent.

What is the best way to make AI-generated text sound more like my natural writing style?

The best way to make AI text sound natural is using a generated style guide alongside a secondary cleanup pass. The Humanizer component acts as a guardrail to refine synthetic examples and ensure the output matches your personal voice.

Do I need a specific AI platform to use a custom writing style guide?

No, you do not need a specific AI platform because the generated style guide is vendor-neutral. It outputs a standalone markdown file that you can easily paste into any agent to draft content in your voice.

What types of writing samples work for building an AI personal voice profile?

You can use sent emails, chat messages, and Slack texts to build an AI personal voice profile. The Generate mode converts these varied writing samples into a unified style guide for drafting both long-form and short-form content.