Book Summary CLI

CLI tool to convert EPUB files to Markdown, select a section via TUI, and summarize it using an OpenAI-compatible LLM with Chain of Density.

Build

npm install
npm run build

Scripts

import

Purpose: convert supported formats (EPUB, PDF) to Markdown. How it works: picks a converter by input extension and writes Markdown to a file. Parameters: --input <path>, --output <path> (optional, defaults next to input) Example:

node dist/cli/index.js import --input /path/to/book.epub --output /path/to/book.md

PDF example:

node dist/cli/index.js import --input /path/to/book.pdf --output /path/to/book.md

Default output example:

node dist/cli/index.js import --input /path/to/book.epub

Without build:

npm run dev -- import --input /path/to/book.epub --output /path/to/book.md

summarize

Purpose: summarize Markdown with chapter selection via TUI. How it works: parses headings, lets you pick a section, sends selected text to the LLM. Parameters: --input <path>, --output <path>, --method <stuff-dense|stuff-quotations>, --export <formats>, --overwrite If --output points to a directory, filename defaults to summary-<method>.md. Example:

node dist/cli/index.js summarize --input /path/to/book.md --output /path/to/summary.md

With method and export:

node dist/cli/index.js summarize --input /path/to/book.md --output /path/to/summary.md --method stuff-quotations --export html,pdf

Without build:

npm run dev -- summarize --input /path/to/book.md --output /path/to/summary.md

export

Purpose: export Markdown to HTML or PDF. How it works: converts Markdown to the selected format and saves next to input. Parameters: --input <path>, --format <html|pdf>, --overwrite Example:

node dist/cli/index.js export --input /path/to/summary.md --format html

Without build:

npm run dev -- export --input /path/to/summary.md --format pdf

Configuration

Copy .env.example to .env and adjust values:

• LLM_URL, LLM_MODEL, LLM_API_KEY
• LLM_MAX_CONTEXT_TOKENS, LLM_MAX_OUTPUT_TOKENS
• LLM_TEMPERATURE, LLM_TOP_P, penalties