backend-systems-auditor

Audits backend services and APIs against production engineering standards with scored findings.

1|Updated Sep 3, 2026
One-click install
npx skills add https://github.com/sabiscore/the-yap-engine --skill backend-systems-auditor-sabiscore
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: backend-systems-auditor
Source: https://github.com/sabiscore/the-yap-engine/tree/main/.ai/skills/backend-systems-auditor
Command: npx skills add https://github.com/sabiscore/the-yap-engine --skill backend-systems-auditor-sabiscore

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Backend code often ships with hidden production risks: missing idempotency keys, absent graceful shutdown handlers, unsafe database migrations, and no observability. This Skill audits services, APIs, and schemas against production-grade standards and returns specific, actionable findings. ## Core Features & Use Cases - Six Audit Dimensions: Checks idempotency, observability, graceful shutdown, migration discipline, API design, and reliability/scalability with concrete checklists. - Prioritized Audit Report: Produces findings ranked Critical/Important/Improvement with scores for observability, idempotency, and shutdown safety. - Corrected Code & Migration Review: Generates fixed implementations for critical findings and Expand-Migrate-Contract sequences for schema changes. - Use Case: Paste your Fastify route files and Prisma migrations before a deploy, and receive a report flagging a missing SIGTERM drain handler, an unsafe NOT NULL column addition, and N+1 queries — each with the corrected code. ## Quick Start Ask the AI to audit your backend service code or migration files for production readiness using this skill.

Frequently Asked Questions about backend-systems-auditor

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I audit my backend API for production readiness?▼

Submit your service code, route files, or schema files for review across six dimensions: idempotency, observability, graceful shutdown, migration discipline, API design, and reliability. The audit returns findings ranked by severity with specific fixes and scores.

How to check if a database migration is safe to deploy?▼

A safe migration follows the Expand-Migrate-Contract pattern: add nullable columns first, backfill data, then remove old structures in a later deploy. The audit flags NOT NULL columns without defaults, single-step renames, and full-table locks.

What does a correct graceful shutdown sequence look like in Node.js?▼

On SIGTERM, stop accepting new requests, drain in-flight requests, finish active queue jobs, close the database pool, flush telemetry, then exit. Immediate process.exit() calls and unclosed connection pools are flagged as critical findings.

Does the audit work with Fastify and Express services?▼

Yes, the audit accepts Fastify, Express, Hono, Node, and Python service code, along with API route files, Prisma schemas, and migration files. Findings reference specific locations in the submitted code.

What observability requirements does the audit check?▼

The audit checks for structured JSON logging, W3C TraceContext propagation, spans per external call, request/error/latency metrics per endpoint, and separated /health and /ready endpoints. It produces an observability score from 0 to 10.