# Pedromneto97 Custom Skills Flutter Domain Layer > Flutter Domain Layer (summary) - Skill: `tomevault-io/pedromneto97-custom-skills-flutter-domain-layer` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/pedromneto97-custom-skills-flutter-domain-layer` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/pedromneto97-custom-skills-flutter-domain-layer/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/pedromneto97-custom-skills-flutter-domain-layer --- # Flutter Domain Layer (summary) Purpose: Minimal, opinionated guidance and templates for the domain/core layer. Essentials - Entities: immutable models and value objects (use `equatable` for equality). - Repositories: abstract interfaces (ports) implemented by the data layer. - Use cases: interactors exposing a `call()` method. - Domain exceptions: typed domain errors; map infra errors in the data layer. Structure - Suggested layout: `lib/domain/entities/`, `lib/domain/repositories/`, `lib/domain/usecases/`, `lib/domain/exceptions.dart` - Keep domain pure (no Dio or data imports). Details and examples moved to reference docs: - `references/entities.md` - `references/repositories.md` - `references/usecases.md` - `references/exceptions.md` - `templates/` — code templates (entity, repository, use case, exceptions) Quick prompts - "Scaffold `User` entity (Equatable), `UserRepository` interface, `GetUser` use case, and domain exceptions." - "Create a `GetUser` unit test using a fake repository." --- > Source: [pedromneto97/custom-skills](https://github.com/pedromneto97/custom-skills) — distributed by [TomeVault](https://tomevault.io).