# Core Query Cqrs Java

> Criar queries CQRS Java (leitura) na camada application. Usar quando o pedido envolver busca por id, listagem ou projeção read-only.

- Skill: `eskcti/core-query-cqrs-java` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add eskcti/core-query-cqrs-java`
- Raw SKILL.md: https://api.skillmd.com/api/skills/eskcti/core-query-cqrs-java/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: EskCti (https://skillmd.com/u/eskcti)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/eskcti/core-query-cqrs-java

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# Core Query CQRS (Java)

## Overview

Queries em `application/usecase/FindCustomerByIdUseCase.java` — implementando `UseCase<FindCustomerInput, CustomerOutput>`.

## Guidelines

- Read-only; sem mutar aggregate.
- Pode retornar DTO diretamente.
- Mesmas regras de namespace que use cases.

## Global Standards

- Consultar `../skills-standards.md` seção **Java Stack Standards**.