takayatomose Skill: General Backend Patterns
Overview
Language-agnostic patterns for backend development applicable across NestJS, Java, Go, and Rust.
Rule Categories
| Priority | Category | Impact |
|---|---|---|
| 1 | Universal Patterns | HIGH |
| 2 | Error Handling | HIGH |
Core Expertise
- Architecture Layers: Presentation, Application, Domain, and Infrastructure isolation.
- Multi-Tenant Isolation: Context extraction and mandatory tenant validation.
- Event-Driven Architecture: Cross-module communication via domain events.
- Persistence Strategy: Relational (PostgreSQL), Append-Only (MongoDB), and Ephemeral (Redis).
Instructions for the Agent
- Consult Internal Rules: Always refer to the
rules/directory within this skill for universal business logic and error handling standards. - Layer Integrity: Never skip layers; Presentation must go through Application which uses Domain.
- Cross-Module Calls: Never call repositories directly across module boundaries; use events.