Building a Legal Document Review Agent with Claude

The Use Case

Contract review is pattern-matching at scale: identify risk clauses, extract key dates and obligations, flag unusual terms. Claude 200K token context processes entire contracts without chunking. Its analytical capabilities handle nuanced clause interpretation.

Three-Stage Pipeline

1. Ingest: PDF to clean text (PyMuPDF)
2. Classify: Contract type detection via Claude Haiku (cheap, fast)
3. Review: Claude Opus deep risk analysis and structured data extraction

What to Extract

Parties and roles, key dates and deadlines, financial terms and conditions, risk clauses with severity rating (critical/high/medium/low), missing provisions (what should be there but is not), and prioritized recommended actions.

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    START["Building a Legal Document Review Agent with Claude"] --> A
    A["The Use Case"]
    A --> B
    B["Three-Stage Pipeline"]
    B --> C
    C["What to Extract"]
    C --> D
    D["Risk Clause Categories"]
    D --> E
    E["Critical Disclaimer"]
    E --> DONE["Key Takeaways"]
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    style DONE fill:#059669,stroke:#047857,color:#fff

Risk Clause Categories

• Limitation of liability: Is the cap appropriate? Does it exclude consequential damages?
• Indemnification: Is it mutual? Are gross negligence carve-outs present?
• IP ownership: Who owns work product? Are background IP rights protected?
• Termination: For cause vs convenience? Effect of termination on licenses?
• Governing law: Favorable jurisdiction? Mandatory arbitration?

Critical Disclaimer

AI-assisted review requires attorney sign-off before acting on any conclusion. AI identifies patterns; attorneys apply judgment. Teams report 60-70% reduction in initial review time but legal accuracy requires human oversight on every significant conclusion.