Legal Domain Guardrails

Every domain-specific Claude workflow needs guardrails, and legal work needs them more than most. The reason is liability — a mischaracterized clause can lead to a signed contract with terms your organization did not intend to accept. The guardrails are not about distrusting Claude. They are about building a system that is reliable enough to trust.

Guardrail one: never let Claude recommend accepting or rejecting terms. Claude extracts. Claude compares. Claude flags. A human decides. The system prompt for every legal skill should include: "You are an extraction and analysis tool. Do not recommend courses of action. Do not use language like 'you should accept' or 'this is a good deal.' Present findings and let the reader decide."

Guardrail two: confidence scoring on every extraction. Claude should rate its confidence in each clause extraction: high (clause is clear and unambiguous), medium (clause is complex but interpretation is likely correct), low (clause is ambiguous, contains cross-references to other sections, or uses domain-specific terms that may have jurisdictional nuance). Low-confidence extractions get sent to legal counsel regardless of whether they would otherwise be flagged.

Guardrail three: version control every analysis. When Claude produces a contract review, save the analysis as a dated artifact alongside the source contract. If the contract is later disputed, you have a record of what was flagged and what was not. This is not just good practice — it is discoverable in litigation, so make sure the analysis is accurate and the disclaimers are clear.