Analyze contract redlines and track negotiation rounds. Upload two versions of a contract (.docx) and get a plain-English summary of all material changes, organized by clause type, with risk assessment.

Coming soon

./start.sh        # macOS/Linux
start.bat          # Windows

docker compose up

• Upload two .docx contract versions for comparison
• AI-powered identification of material legal changes (not just word-level diffs)
• Changes classified by clause type (indemnification, liability, IP, termination, etc.)
• Traffic-light risk assessment for each change
• Structured reports in HTML, PDF, and DOCX formats
• Negotiation round tracking to show how positions evolve across exchanges
• Auto-detection of contract title and parties with manual override

Start the API server and visit http://localhost:8000/docs for interactive Swagger documentation.

rs_app/              # FastAPI backend
  api/               # Route handlers
  models/            # SQLAlchemy database models
  schemas/           # Pydantic request/response schemas
  services/          # Business logic
  templates/         # Jinja2 report templates
rs_frontend/         # Streamlit frontend
data/sample/         # Synthetic sample contracts
scripts/             # Utility scripts
tests/               # Test suite

pip install -e ".[dev]"
pytest

• Python 3.11+, FastAPI, Uvicorn
• Anthropic API (Claude) for legal analysis
• python-docx for document parsing
• SQLAlchemy 2.0 with SQLite
• Streamlit for frontend
• WeasyPrint for PDF generation

MIT License - Copyright (c) 2026 Noam Raz and Pleasant Secret Labs