What problem does it solve? Backend services often ship with hidden production risks: missing idempotency keys, absent graceful shutdown handlers, unsafe database migrations, and no observability. This Skill systematically audits backend code, API designs, and migration strategies against production-grade engineering standards, producing specific findings with quantified risks and corrected code. ## Core Features & Use Cases - Six-Dimension Audit: Checks idempotency contracts, observability (traces/metrics/logs), graceful shutdown sequences, expand-migrate-contract migration discipline, API design correctness, and reliability/scalability patterns. - Prioritized Audit Report: Produces findings tiered as Critical, Important, and Improvements, plus numeric scores for observability, idempotency, and shutdown safety. - Corrected Code & Migration Review: Generates fixed implementations with inline before/after comments and a full migration safety analysis including lock duration and rollback strategy. - Use Case: Before deploying a Fastify service, paste your route handlers and Prisma migration files to receive a report flagging a missing SIGTERM drain handler, an N+1 query, and a NOT NULL column added without a default, each with a concrete fix. ## Quick Start Ask the assistant to audit your backend service code or migration files for production readiness using the backend systems auditor.
