律师事务所用 AI Agent 将合同审查时间缩短 85%
A 120-attorney commercial law firm was handling 300–400 contract reviews per month for corporate clients. Junior associates were doing first-pass review — a process that took 2–4 hours per contract and was prone to inconsistency, especially on late-night reviews before morning client meetings.
They built a contract review agent using Claude with a firm-specific playbook: 87 rules covering preferred language for liability clauses, required provisions for their industry verticals, automatic flags for unusual indemnification language, and deal-breaker terms that require partner review. The agent outputs a structured redline summary with risk ratings and suggested alternative language.
The playbook took 6 weeks to build — partners reviewed 200 historical contracts and extracted their implicit standards into explicit rules. This was the most valuable part of the project. The firm now has a written standard that junior associates reference directly, even without the AI tool.
The agent flags and summarizes; attorneys decide and negotiate. The agent cannot assess business context ("is this risk acceptable given what the client is trying to achieve?") or handle novel clauses it hasn't seen before. The firm's rule: any clause flagged "unusual" goes to a senior associate before the agent's suggestion is accepted.
Partially. Harvey AI and Ironclad are purpose-built for this use case. For a DIY approach, uploading a contract to Claude with a detailed review prompt gets you 60–70% of the way there without any infrastructure investment.