commerce-agent-sdk

The project demonstrates strong security practices for a reference implementation. It explicitly avoids hardcoding secrets, uses environment variables for sensitive data (.env.example as a template). It implements request body validation (Zod) and message length/token estimation limits to prevent abuse (413 errors). Rate limiting is in place for demo auth endpoints. OAuth credentials are handled server-side (NorceTokenProvider) and never exposed to the client. The 'Simple Auth' mechanism is clearly marked as not for production and has basic JWT signing/verification. Error responses (ErrorEnvelope) are designed to be frontend-safe, redacting sensitive information. CORS is explicitly configured. No 'eval' or similar dangerous patterns were observed. Overall, it is well-structured for security for its stated purpose.