Software Backend

This is your reach-for skill when building or reviewing production backend services in Node.js, Python, Go, Rust, or C#. It defaults to pragmatic choices like type-safe validation at the edge, Postgres with connection pooling, OpenTelemetry for observability, and RFC 9457 error responses. The scaffolding rule is smart: it shows full working implementations for domain logic like fraud rules, webhook handlers, and background jobs instead of stubs. What stands out is the production hardening section covering timeouts, field-level selection, and idempotency patterns that models routinely skip. Use it for REST, GraphQL, or tRPC APIs and everything around them: auth, caching, migrations, rate limiting, and deploy readiness.