ghost-writer

ghost-writer

Reverse-engineer any author's writing style. Then write in their voice.

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Feed ghost-writer 3 blog posts by Paul Graham, and it builds a 24-dimension style profile — sentence rhythm, vocabulary tier, humor style, rhetorical devices, emotional temperature, and 19 more. Then ask it to write something new. The output reads like Graham wrote it, not like AI imitating Graham.

Not prompt engineering. Forensic stylometry.

What It Does

📥 Input	2–5 writing samples (paste text, file paths, or URLs)
🔬 Analysis	24-dimension forensic style breakdown
📊 Output	Interactive HTML report + JSON style profile
✍️ Writing	New content that authentically reproduces the voice

Before / After

❌ Without ghost-writer (default AI)

In this blog post, we'll explore the fascinating world of startups. Starting a company is a challenging yet rewarding endeavor that requires dedication, perseverance, and a willingness to embrace uncertainty. Let's dive into the key factors that contribute to startup success.

✅ With ghost-writer (Paul Graham profile loaded)

The most dangerous thing about starting a startup is that it's hard in ways you don't expect. Everyone warns you about the long hours. Nobody warns you that the hardest part is making decisions with no information and no one to ask.

The 24 Dimensions

ghost-writer doesn't just look at "tone." It performs a forensic analysis across 24 independent dimensions, grouped into 5 categories:

┌─────────────────────────────────────────────────────────────┐
│                                                             │
│   A. RHYTHM & STRUCTURE          B. WORD CHOICE             │
│   ├─ Sentence length dist.       ├─ Vocabulary tier          │
│   ├─ Paragraph architecture      ├─ Jargon handling          │
│   ├─ Opening moves               ├─ Verb energy              │
│   ├─ Transition style            ├─ Modifier philosophy      │
│   ├─ Closing patterns            ├─ Pronoun strategy          │
│   └─ Structural signature        └─ Signature phrases        │
│                                                             │
│   C. TONE & REGISTER            D. RHETORICAL DEVICES       │
│   ├─ Confidence level            ├─ Analogy & metaphor       │
│   ├─ Humor style                 ├─ Evidence strategy         │
│   ├─ Emotional temperature       ├─ Repetition as device      │
│   ├─ Reader relationship         └─ Question usage            │
│   └─ Formality gradient                                     │
│                                                             │
│   E. MECHANICS & FORMATTING                                 │
│   ├─ Punctuation personality                                │
│   ├─ Formatting habits                                      │
│   └─ Emphasis patterns                                      │
│                                                             │
└─────────────────────────────────────────────────────────────┘

Style Report

The analysis generates an interactive HTML report. Self-contained, dark/light theme, works on mobile.

Includes:

• Radar chart — all dimensions at a glance
• Rhythm visualization — sentence length bar chart showing the author's "beat"
• Signature phrases — highlighted with frequency counts
• Voice DNA — one-paragraph summary of the author's essence
• Do / Don't cheat sheet — quick reference for writing in this voice

Install

One-line install (auto-detects your agent)

curl -fsSL https://raw.githubusercontent.com/OneSpiral/ghost-writer/main/install.sh | bash

Claude Code (Marketplace)

/plugin marketplace add OneSpiral/ghost-writer

Manual install

# Claude Code
git clone https://github.com/OneSpiral/ghost-writer.git ~/.claude/skills/ghost-writer

# Codex CLI
git clone https://github.com/OneSpiral/ghost-writer.git ~/.codex/skills/ghost-writer

# Pi
git clone https://github.com/OneSpiral/ghost-writer.git ~/.pi/agent/skills/ghost-writer

# OpenCode
git clone https://github.com/OneSpiral/ghost-writer.git ~/.opencode/skills/ghost-writer

Any other agent