majiayu000 Purpose
Ensure MERN stories address NFRs. Complements security policies and stack conventions.
MERN-specific concerns (always consider)
- MongoDB efficiency — query patterns, indexing assumptions, pagination for large collections
- Schema migrations — Mongoose schema changes need migration/compatibility strategy
- API resilience — idempotency for mutations, rate limiting on expensive/public endpoints, graceful degradation
- Next.js rendering — appropriate rendering strategy (SSR/SSG/client) for the use case
- Operability — config/env differences, safe rollout/rollback, feature flags if risky
For standard concerns, output format, and flexibility rules, see /shared-nfr.