Fantasy Book Generator

This project generates a fantasy book using Large Language Models (LLMs) from the LangChain community. The process involves generating story ideas, creating a synopsis, structuring chapters, and drafting and verifying chapter content.

Project Structure

The repository contains the following key files and folders:

• main.py: The main script that orchestrates the story generation process.
• prompts.py: Contains the prompt templates for various phases (idea generation, synopsis, quality verification, etc.).
• generated/: When the main.py script is executed and a synopsis is approved, this folder is created (if it doesn't already exist) with:
  • A subdirectory named after the book title (e.g., Echoes of the Veil), containing:
    • structure.md: A file outlining the detailed book structure and chapter breakdown.
    • One Markdown file per chapter (e.g., 1.md, 2.md, etc.) with the final polished chapter content.
• README.md: This documentation file.
• requirements.txt: Lists the required dependencies for the project.
• LICENSE: The project’s license file.

Requirements

• Python 3.13.2 or higher
• LangChain library
• Ollama models

Setup

1. Clone the repository:

   git clone https://github.com/yourusername/fantasy-book-generator.git
   cd fantasy-book-generator

2. Install the required dependencies:

   pip install -r requirements.txt

3. Install Ollama and the required models:

   • Download and install Ollama following their official instructions.
   • Ensure the following models are installed and available:
     • deepseek-r1:1.5b
     • gemma3:1b
     • mistral:latest
   • Start the Ollama models locally on http://localhost:11434.

Usage

To generate a fantasy book, run the main.py script: sh python main.py

The script will go through the following phases:

1. Generating Story Ideas: Creates five detailed fantasy story ideas.
2. Generating Synopsis: Composes a detailed synopsis based on the generated ideas.
3. Quality Verification: Analyzes the synopsis for consistency, completeness, plot potential, and originality.
4. Final Approval Check: Checks if the synopsis meets all the required criteria.
5. Structuring Chapters: Generates a detailed chapter-by-chapter structure for the book.
6. Chapter Generation and Verification: Drafts and verifies each chapter based on the structure.
7. Final Chapter Generation: Produces a polished final version of each chapter.

Generated content will be saved in the generated/ directory under a subfolder corresponding to the book title.

Prompts

The prompts used for generating and verifying content are defined in prompts.py. They include:

• IDEA_GENERATION_PROMPT
• STORY_SYNOPSIS_PROMPT
• QUALITY_VERIFICATION_PROMPT
• FINAL_APPROVAL_CHECK_PROMPT
• BOOK_STRUCTURE_PROMPT
• CHAPTER_DRAFT_PROMPT
• CHAPTER_VERIFICATION_PROMPT
• FINAL_CHAPTER_GENERATION_PROMPT

License

This project is licensed under the MIT License. See the LICENSE file for details.

LLMs to Pull from Ollama

Ensure the following LLMs are pulled and available from Ollama:

• deepseek-r1:1.5b for creative idea generation
• gemma3:1b for quality verification and structure generation
• mistral:latest for chapter generation