DocuSign

// Build: internal e-signature (DocuSign replacement) # Paste into Cursor or Claude Code in an empty repo. Build an internal e-sign tool covering the part of DocuSign we use: place fields on a PDF, route to signers, capture a notarised, tamper-evident signature, and diff counterparty redlines. The audit trail is load-bearing. Stack: Next.js + pdf-lib + AWS KMS (signing key) + S3 (versioned) + an RFC 3161 timestamp authority + Claude. Build, in order: 1. A PDF viewer with field placement (signature, initials, date, text). 2. A per-recipient signing link with email gate; serial/parallel routing. 3. On sign: hash the payload, KMS-sign it, RFC 3161 timestamp, store a versioned PDF; issue a certificate of completion (pdf-lib). 4. AI assist, a round-trip redline diff. Call Claude: """ Given contract v(N) and v(N+1) + the legal playbook of material clauses, return JSON { changes:[{clause, kind(added|removed|modified), quote_before, quote_after, material}], summary, outside_playbook(bool) }. Quote exactly; diff only, propose nothing. """ Skip: the CLM module, Insight analytics, payments, Maestro. Done when: a contract routes, gets a notarised signature + certificate, and legal sees an exact redline diff each round.