novelscribe 0.2.26

AI-powered autonomous novel generation system — install with 'pip install novelscribe', run with 'scribe'

NovelScribe

An AI-powered autonomous novel generation agent. Give it a concept, pick a genre, and it writes a full novel — outline, characters, world-building, chapters, and all.

Language / 语言 / 語言: English | 简体中文 | 繁體中文

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Install

pipx install novelscribe

That's it. The scribe command is now available.

Why pipx? On macOS and many Linux distros, pip install is blocked by the system Python (externally-managed-environment error). pipx installs into an isolated virtualenv, avoiding this entirely. Install pipx first if you don't have it: brew install pipx && pipx ensurepath (macOS) or sudo apt install pipx && pipx ensurepath (Linux).

Other install methods

pip install --user novelscribe    # user-level (may warn on macOS)

Or the one-liner script (auto-detects pipx/pip):

curl -sSL https://raw.githubusercontent.com/huangjien/wst/main/novel_harness/install.sh | bash

30-Second Demo

# Create a new novel project
scribe new my-novel

# Run fully autonomous generation (outline → characters → world → chapters)
scribe autonomous start my-novel

# Check progress
scribe --help

What It Does

NovelScribe chains 9 specialized AI agents into an autonomous pipeline:

discuss → genre → characters → world-building → outline → chapter-planning → writing → continuity → editing

Each agent is a Markdown file with a system prompt and model config. The orchestrator runs them step-by-step through YAML-defined workflows, with verification loops that auto-fix issues until quality passes.

Key Features

• Autonomous generation — one command produces a complete novel
• 9 specialized agents — writer, editor, character designer, world-builder, continuity checker, etc.
• Verification loops — auto-detects and fixes plot holes, inconsistencies, and quality issues
• Quality gates — Bronze / Silver / Gold / Platinum tiers with metrics and benchmarks
• Parallel execution — runs independent agents concurrently for 2-4x speedup
• LLM streaming — real-time token streaming on all 5 providers
• Circuit breakers — automatic failover between LLM providers on persistent failures
• Schema versioning — forward-compatible agent/workflow definitions with migration support
• Run logging — structured JSONL logs with scribe logs run <project> command
• Scales to 3M words — hierarchical summaries, memory optimization, chapter pagination, phase-level caching
• Multi-language — English, 简体中文, 繁體中文 (with fallback)
• 5 LLM providers — OpenAI, Claude, Gemini, Ollama, LM Studio

Usage

Create a Novel

scribe new my-novel --provider openai --model gpt-4

Run Autonomous Generation

scribe autonomous start my-novel

Run Individual Phases

# Generate the outline
scribe run workflow outline --project my-novel

# Run a single agent
scribe run agent writer_agent --project my-novel

# Preview without executing
scribe run workflow writing --project my-novel --dry-run

Explore Agents & Workflows

scribe agents list
scribe agents show writer_agent

scribe workflows list
scribe workflows show outline

Templates

scribe templates list
scribe templates show heros_journey --category plot
scribe template-create plot -n "My Structure" -d "Description" -b "0:Hook:Description"

Version & Updates

scribe version info              # current version
scribe version check             # check PyPI for updates
scribe version update            # self-update to latest
scribe version update --yes      # skip confirmation

Run Logs

scribe logs run <project>        # view structured run logs

NovelScribe checks for updates on startup (once per 24h) and shows a notification when a new version is available.

Multi-Language Support

Language	Code
English	en
Simplified Chinese	zh-CN
Traditional Chinese	zh-TW

Set per-project in META.yaml:

project_name: my_novel
language: zh-CN
genre: fantasy
target_word_count: 80000

Or per-command:

scribe --lang zh-TW agents list

Language resolution priority: --lang flag > META.yaml > user config > SCRIBE_LANGUAGE env > system locale > English fallback.

Configuration

Set your LLM provider:

# Interactive setup
scribe config setup

# Or set directly
export OPENAI_API_KEY=sk-...
export ANTHROPIC_API_KEY=sk-ant-...

Supported providers:

Provider	Env Var	Notes
OpenAI	OPENAI_API_KEY	Best quality
Anthropic	ANTHROPIC_API_KEY	Long context
Google Gemini	GOOGLE_API_KEY	Free tier available
Ollama	—	Local, no API key needed
LM Studio	—	Local, no API key needed

Architecture

novel_harness/
├── cli.py                 # Entry point (registered as 'scribe')
├── cli_*.py               # Command modules (agents, workflows, run, autonomous, logs, etc.)
├── core/                  # Core engine
│   ├── orchestrator.py    # Central coordinator
│   ├── llm_client.py      # Multi-provider LLM abstraction (with streaming)
│   ├── circuit_breaker.py # Per-provider circuit breakers with auto-fallback
│   ├── optimizing_llm_client.py # LLM call wrapper with cache + cost tracking
│   ├── model_registry.py  # Per-model token limit registry
│   ├── schema_versions.py # Schema versioning for agent/workflow definitions
│   ├── run_logger.py      # Structured JSONL run logging
│   ├── phase_context_cache.py # Per-phase artifact pre-loading
│   ├── storage.py         # File-based storage
│   ├── version.py         # Update checker & self-updater
│   ├── performance_profiler.py        # Profiling facade
│   ├── performance_profiler_core.py   # Profiling implementation
│   ├── performance_profiler_types.py  # Profiling data types
│   └── ...
├── agents/                # Agent definitions (Markdown, schema_version: 1)
├── workflows/             # Workflow definitions (YAML, schema_version: 1)
├── api/                   # FastAPI server with WebSocket streaming (optional)
└── tests/                 # Test suite (5187 tests, 96% coverage)

LLM Providers

NovelScribe supports any OpenAI-compatible API. Configure via environment variables or scribe config setup:

# .env file
OPENAI_API_KEY=sk-...
LLM_PROVIDER=openai
LLM_MODEL=gpt-4-turbo-preview

API Server (Optional)

For web UI integration or programmatic access:

pip install "novelscribe[api]"
uvicorn api.app:app --host 0.0.0.0 --port 8000

Development

git clone https://github.com/huangjien/wst.git
cd novelscribe/novel_harness
uv sync --all-extras

# Run quality checks
make check

# Individual
make format      # ruff format
make lint        # ruff check --fix
make type-check  # mypy
make test        # pytest with coverage
make build       # uv build → dist/

License

MIT