Contract Review, by independent developer Chris Sheehan, is a single-purpose Claude skill for reviewing contracts, NDAs, employment agreements, SaaS terms, and M&A documents. It's grounded in the CUAD dataset (41 risk categories, 510 contracts from the Atticus Project), with reference to LegalBench (Stanford HAI) and ContractEval benchmarks rather than free-form model judgment alone.
Before analyzing content, the skill runs a pre-review checklist — flagging blank fields, placeholders, missing referenced exhibits, and signature status — then reviews the document position-aware (buyer, seller, or vendor perspective), producing specific redline suggestions and document-type-specific checklists (NDA, SaaS, M&A, merchant agreements). Per the author's own benchmarking, Claude achieves an F1 of roughly 0.62 on clause extraction using this skill — positioned as strong first-pass review and issue-flagging, not a replacement for attorney review on material deals.
Works across 26+ tools via the open Agent Skills standard, not just Claude. For generating actual tracked-changes .docx redlines or negotiation memos from the skill's output, the author maintains a companion tool, legal-redline-tools.
Licensed MIT.