nodejs-backend-patterns

Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices. Use when creating Node.js servers, REST APIs, GraphQL backends, or microservices architectures.

Quality

61%

Does it follow best practices?

Impact

Pending

No eval scenarios have been run

Securityby

Passed

No known issues

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npx tessl skill review --optimize ./tests/ext_conformance/artifacts/agents-wshobson/javascript-typescript/skills/nodejs-backend-patterns/SKILL.md

Evaluation results

100%

44%

Product Catalog API — Server Foundation

Express server setup and middleware configuration

Criteria

Without context

With context

TypeScript used

100%

helmet applied

100%

CORS from env var

90%

100%

Compression middleware

100%

JSON body limit 10mb

12%

100%

URL-encoded body limit 10mb

12%

100%

Pino logger

100%

Pino-pretty transport

100%

LOG_LEVEL env var

100%

PORT from env

100%

Layered directory structure

75%

100%

types/ and config/ dirs

100%

96%

45%

SaaS Platform — User Authentication Service

Authentication, validation, and error handling

Criteria

Without context

With context

AppError base class

100%

ValidationError 400

100%

UnauthorizedError 401

100%

Zod validate middleware

60%

100%

Zod schema wraps body/query/params

100%

bcrypt salt rounds 10

100%

Access token 15m expiry

100%

Refresh token 7d expiry

100%

Secrets from env vars

70%

100%

Production error hiding

100%

asyncHandler wrapper

50%

94%

34%

E-Commerce Order Processing Service

Database patterns, rate limiting, and response utilities

Criteria

Without context

With context

Pool max:20

100%

Pool idleTimeoutMillis

100%

Pool connectionTimeoutMillis

100%

Transaction pattern

100%

ioredis retryStrategy

100%

API rate limiter config

50%

100%

RedisStore for rate limiting

100%

Auth rate limiter

25%

ApiResponse.success format

100%

ApiResponse.paginated

100%

DI container singleton

50%

100%

Graceful DB shutdown

100%

Repository: Dicklesworthstone/pi_agent_rust
Commit: 47823e3

Evaluated: about 1 month ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Product Catalog API — Server Foundation SaaS Platform — User Authentication Service E-Commerce Order Processing Service

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