Bestseller Writer

Bestseller Writer 📚

> One idea → Full manuscript → Amazon KDP listing. Fully autonomous.

Turn a shower thought into a publishable book. 5-stage multi-agent pipeline handles everything: story structure, characters, all chapters (written in parallel), editorial pass, and a complete Amazon KDP publishing package.

No writing experience needed. No blank page. Just your idea.

What You Get

| Output | Description | |--------|-------------| | MANUSCRIPT.md | Complete book (50-80k words, 25-35 chapters) | | kdp_package.md | Title options, Amazon description, 7 keywords, BISAC categories, pricing strategy, cover brief + Midjourney prompt | | plan.md | Full story/argument structure with chapter-by-chapter outline | | characters.md | Deep character profiles with arcs (fiction) or authority framework (non-fiction) | | editorial_memo.md | Professional developmental edit notes |

Quick Start (CLI)

Install dependency

cd skills/bestseller-writer/scripts
npm install

Generate a book

# Thriller
node generate.js --idea "A detective discovers evidence of her own murder" --genre thriller
Self-help  
node generate.js --idea "How to build a $10k/month business in 90 days using AI" --genre self-help
Romance
node generate.js --idea "Two rival food truck owners forced to share a festival spot" --genre romance
Business/non-fiction
node generate.js --idea "Why most startups fail at hiring and how to fix it" --genre business

Options

--idea, -i     Your book concept (required)
--genre, -g    Genre: thriller, romance, self-help, business, memoir, fantasy, nonfiction
--output, -o   Output directory (default: ./book-output/[slug])
--chapters     Number of chapters (default: 25)
--batch        Parallel chapter batch size (default: 4)
--planner      Model for Planner + Editor (default: claude-opus-4-5)
--writer       Model for writing agents (default: claude-sonnet-4-5)

Environment

export ANTHROPIC_API_KEY=sk-ant-...

Agent-Orchestrated Mode

If you're running inside an OpenClaw agent, the agent follows this pipeline directly using sessions_spawn. Trigger with:

> "Write me a book about [idea]" or "Generate a bestseller about [idea]"

The agent will: 1. Create output directory at ~/Desktop/books/[slug]/ 2. Run all 5 stages sequentially (chapters in parallel batches) 3. Deliver kdp_package.md as the final deliverable 4. Report word count and publish checklist

Pipeline Architecture

💡 Your Idea
     │
     ▼
┌─────────────────────────────────────┐
│  Stage 1: PLANNER (Opus)            │
│  Market positioning, title options, │
│  full chapter-by-chapter outline,   │
│  comparable titles, pitch           │
└──────────────────┬──────────────────┘
                   │
                   ▼
┌─────────────────────────────────────┐
│  Stage 2: CHARACTER DESIGNER        │
│  (Sonnet)                           │
│  Deep profiles, arcs, voice guide   │
│  (fiction) or authority/reader      │
│  avatar framework (non-fiction)     │
└──────────────────┬──────────────────┘
                   │
         ┌─────────┴─────────┐
         ▼                   ▼
  ┌─────────────┐     ┌─────────────┐
  │ Chapters    │ ... │ Chapters    │  ← Parallel batches
  │ 1-4 (Sonnet)│     │ 21-25       │    (4 at a time)
  └──────┬──────┘     └──────┬──────┘
         └─────────┬─────────┘
                   ▼
┌─────────────────────────────────────┐
│  Stage 4: EDITOR (Opus)             │
│  Consistency, pacing, voice,        │
│  opening/ending assessment,         │
│  marketability score                │
└──────────────────┬──────────────────┘
                   │
                   ▼
┌─────────────────────────────────────┐
│  Stage 5: KDP PACKAGER (Sonnet)     │
│  Title, description, keywords,      │
│  categories, pricing, cover brief,  │
│  Midjourney prompt, launch checklist│
└─────────────────────────────────────┘
                   │
                   ▼
        📦 MANUSCRIPT.md + kdp_package.md

Genre Support

| Genre | Framework | Avg Length | |-------|-----------|------------| | Thriller/Mystery | Save the Cat beats + 3-act | 70-80k words | | Romance | Meet cute → Black moment → HEA | 60-70k words | | Fantasy/Sci-Fi | World + Hero's Journey | 80-100k words | | Self-Help | Problem → Framework → Transformation | 40-50k words | | Business | Insight → Evidence → Application | 45-55k words | | Memoir | Chronological + thematic arc | 55-70k words |

Revenue Model

Amazon KDP passive income per book:

Launch strategy (built into kdp_package.md): 1. Publish at $0.99 → enroll KDP Select 2. Day 1-4: Paid launch, collect reviews 3. Day 5-9: Free promo (spikes ranking) 4. Day 10+: Raise to $2.99-$4.99 (70% royalty) 5. Repeat with next book

Niche targeting (highest ROI):

Cost Estimate

| Stage | Model | API Cost (approx) | |-------|-------|-------------------| | Planner | Opus | ~$0.15 | | Characters | Sonnet | ~$0.05 | | 25 chapters | Sonnet × 25 | ~$0.75 | | Editor | Opus | ~$0.20 | | KDP Package | Sonnet | ~$0.05 | | Total | | ~$1.20 per book |

One book costs ~$1.20 to generate and can earn $50-500/month. ROI is infinite.

Agent Instructions (for OpenClaw)

When the user asks to write a book or generate a manuscript:

Step 1 — Collect Info

Step 2 — Run Pipeline

Spawn agents in sequence using sessions_spawn with runtime="subagent":

Agent 1 — Planner: Task: Full planning prompt (see scripts/generate.js buildPlannerPrompt) Save output to: plan.md

Agent 2 — Character Designer: Task: Character/authority prompt with plan as context Save output to: characters.md

Agents 3-N — Chapter Writers (parallel, max 4 at once): Task: Chapter writing prompt with plan + characters + prev chapter ending Save output to: chapter_NN.md

Agent N+1 — Editor: Task: Editorial pass prompt with plan + sample chapters Save output to: editorial_memo.md

Agent N+2 — KDP Packager: Task: KDP package prompt with plan + editorial Save output to: kdp_package.md

Step 3 — Assemble

Step 4 — Deliver

Troubleshooting

Chapters are too short? The writer agents are prompted for 2,000-2,500 words. If output is shorter, re-run that specific chapter with: "This chapter is too short. Expand to at least 2,000 words, adding more scene depth, dialogue, and sensory detail."

Voice is inconsistent? The editor stage catches this. After the editorial memo, re-run any flagged chapters with the specific feedback.

KDP keywords not relevant? Edit kdp_package.md keywords manually using Google Keyword Planner or Publisher Rocket to verify search volume before uploading.

Want a series? After Book 1 is done, pass plan.md + characters.md into a new run with --idea "Book 2: [continuation]". Characters and world are already built.

--idea, -i     Your book concept (required)
--genre, -g    Genre: thriller, romance, self-help, business, memoir, fantasy, nonfiction
--output, -o   Output directory (default: ./book-output/[slug])
--chapters     Number of chapters (default: 25)
--batch        Parallel chapter batch size (default: 4)
--planner      Model for Planner + Editor (default: claude-opus-4-5)
--writer       Model for writing agents (default: claude-sonnet-4-5)

Environment

export ANTHROPIC_API_KEY=sk-ant-...

Chapters are too short? The writer agents are prompted for 2,000-2,500 words. If output is shorter, re-run that specific chapter with: "This chapter is too short. Expand to at least 2,000 words, adding more scene depth, dialogue, and sensory detail."

Voice is inconsistent? The editor stage catches this. After the editorial memo, re-run any flagged chapters with the specific feedback.

KDP keywords not relevant? Edit kdp_package.md keywords manually using Google Keyword Planner or Publisher Rocket to verify search volume before uploading.

Want a series? After Book 1 is done, pass plan.md + characters.md into a new run with --idea "Book 2: [continuation]". Characters and world are already built.