AIFIRST blackletter: contract review that splits deterministic rules from model judgment
The brief
blackletter reviews contracts in two layers: seven deterministic checks for governing law, liability caps, payment terms, auto-renewal notice, confidentiality duration, blank fields, and assignment clauses, plus three model-adjudicated checks for one-sided clauses, indefinite obligations, and clause contradictions.
Key points
- Findings are anchored to PDF pages with highlighted source text and stated reasoning.
- The stack is Next.js 16 and React 19 over FastAPI and Python 3.12, using PyMuPDF for text geometry, with 65 test cases and provider-agnostic model calls.
- If model calls fail it degrades to rules-only operation.
Sources
- GitHubgithub.com
- Source codegithub.com