# Core Use Case Rs

> Criar use cases Rust implementando shared_kernel::UseCase. Usar quando o pedido envolver command handler, caso de uso ou orquestração application.

- Skill: `eskcti/core-use-case-rs` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add eskcti/core-use-case-rs`
- Raw SKILL.md: https://api.skillmd.com/api/skills/eskcti/core-use-case-rs/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-use-case-rs

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# Core Use Case (Rust)

## Overview

Use cases em `application/<verb>_<entity_snake>.rs` — struct `CreateCustomer` implementando `UseCase<CreateCustomerInput, CustomerOutput>`.

## Guidelines

- Injetar `Arc<dyn CustomerRepository>` (port, não adapter concreto).
- Orquestrar domínio; retornar `Result`.
- Nome do use case **sem** sufixo `UseCase` redundante se o módulo já é `application` (`CreateCustomer`, não `CreateCustomerUseCase` — opcional, preferir nome curto).

## Workflow

1. Definir input/output DTOs.
2. Implementar struct + `UseCase` async.
3. Wire no handler Axum (`backend-controller-rs`).

## Global Standards

- Consultar `../config-shared-core-rs/references/rust-namespace-layout.md`.