Document review assistant

Lawyers upload contracts; Claude agent extracts clauses, flags non-standard terms, generates redline. Uses function-calling for clause lookups.

Cut first-pass review time from 45 min to 8 min per contract.

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Problem

Junior associates spent half their week on contract first-pass — comparing clauses to the firm's standards, marking anomalies, drafting redlines.

Users

Internal — 18-lawyer M&A practice

Key flow

1Lawyer uploads contract PDF + counterparty name
2Agent returns extracted clauses + flags + suggested redline
3Lawyer reviews, accepts/rejects each change, exports final DOCX

What I built

Document upload with structured extraction of parties, dates, key clauses
Side-by-side comparison against the firm's clause library
Auto-redline draft with one-line rationale per change
Always-human-approval — lawyer ships only after explicit approve

Limits

EN + ES + DE contracts only — French handled by separate workflow
Cannot send final document — always pulls back to the lawyer's desk

Document review assistant

AI tools used

Claude
Anthropic API

@matthias.weber