---
title: ClauseGuard
emoji: 🛡️
colorFrom: gray
colorTo: gray
sdk: gradio
sdk_version: "5.23.0"
python_version: "3.12"
app_file: app.py
pinned: false
---

# 🛡️ ClauseGuard — AI Contract Analysis

**The world's most comprehensive open-source legal contract analysis tool.**

ClauseGuard automatically analyzes legal contracts using state-of-the-art NLP models fine-tuned on legal data.

## ✨ Features

### Core Analysis
- **41 CUAD Clause Categories** — Detects and classifies clauses across the full [CUAD](https://huggingface.co/datasets/theatticusproject/cuad-qa) taxonomy (Document Name, Parties, Governing Law, Indemnification, Termination, Non-Compete, IP Ownership, etc.)
- **4-Tier Risk Scoring** — Critical / High / Medium / Low with visual risk matrix
- **Legal NER** — Extracts parties, dates, monetary values, jurisdictions, defined terms
- **NLI Contradiction Detection** — Identifies conflicting clauses and missing critical provisions
- **PDF / DOCX / TXT Support** — Upload any contract format

### UI/UX
- **3-Panel Professional Layout** — Sidebar upload + Main analysis + Summary dashboard
- **Document Viewer** — Text with inline entity highlights
- **Clause Cards** — Expandable cards with risk badges and descriptions
- **Export Reports** — JSON (structured data) and CSV (tabular) downloads
- **Color-Coded Risk Badges** — Visual indicators for quick triage

## 🧠 Models Used

| Component | Model |
|-----------|-------|
| Clause Classification | `Mokshith31/legalbert-contract-clause-classification` (LoRA on `nlpaueb/legal-bert-base-uncased`) |
| Fallback Detection | Regex patterns covering 15+ clause types |
| NER | Rule-based with 7 entity types (dates, money, parties, jurisdictions, defined terms) |
| NLI | Heuristic contradiction detection across 5 conflict patterns |

## 📚 Datasets

- [CUAD](https://huggingface.co/datasets/theatticusproject/cuad-qa) — 510 contracts, 13K annotations, 41 clause categories
- [LegalBench](https://huggingface.co/datasets/nguha/legalbench) — 322 legal reasoning tasks
- [LexGLUE](https://huggingface.co/datasets/coastalcph/lex_glue) — Unfair Terms of Service classification

## 🚀 Usage

1. Upload a contract (PDF, DOCX, or TXT) or paste text directly
2. Click **Analyze Contract**
3. View results across tabs: Document, Clauses, Entities, Contradictions
4. Download JSON/CSV reports

## ⚠️ Disclaimer

*Not legal advice. ClauseGuard is an AI-powered analysis tool for informational purposes only. Always consult a qualified attorney for legal decisions.*

## 🔗 Links

- [Space](https://huggingface.co/spaces/gaurv007/ClauseGuard)
- [CUAD Paper](https://arxiv.org/abs/2103.06268)
- [LegalBench](https://huggingface.co/datasets/nguha/legalbench)