---

name: musubix-domain-inference description: Guide for automatic domain detection and component inference. Use this when asked to identify the domain of a project and get recommended components for that domain. license: MIT

MUSUBIX Domain Inference Skill

This skill guides you through automatic domain detection and component recommendations.

Overview

MUSUBIX supports 62 domains with 224 predefined components. The domain inference system automatically:

1. Detects project domain from requirements/descriptions
2. Recommends optimal components for that domain
3. Suggests architecture patterns

Supported Domains (62)

Business (8)

Healthcare (3)

Service (20+)

Technology (8)

Domain Detection

Automatic Detection

MUSUBIX analyzes text for domain keywords:

Copyimport { domainDetector } from '@nahisaho/musubix-core';

const result = domainDetector.detect(`
  ペットの予約管理システムを作りたい。
  獣医師のスケジュール管理と、ワクチン接種記録も必要。
`);

// Result:
// {
//   primaryDomain: { id: 'veterinary', name: 'Veterinary', nameJa: '動物病院' },
//   confidence: 0.92,
//   matchedKeywords: ['ペット', '獣医', 'ワクチン', '予約'],
//   suggestedComponents: ['PetService', 'ReservationService', 'VetScheduleService']
// }

CLI Usage

Copy# Analyze requirements file
npx musubix design patterns --detect-domain storage/specs/REQ-001.md

# Get component recommendations
npx musubix design generate storage/specs/REQ-001.md --infer-components

Component Inference

Domain-Specific Components

Each domain has predefined components with:

• Type: Service, Repository, Controller, Factory, etc.
• Layer: Presentation, Application, Domain, Infrastructure
• Dependencies: Required collaborators
• Patterns: Recommended design patterns
• Methods: Domain-specific operations

Example: Veterinary Domain

Copyconst veterinaryComponents = [
  {
    name: 'PetService',
    type: 'service',
    layer: 'application',
    description: 'ペット管理のビジネスロジック',
    dependencies: ['PetRepository', 'PetHistoryRepository'],
    patterns: ['Service'],
    methods: [
      { name: 'register', returnType: 'Promise<Pet>' },
      { name: 'update', returnType: 'Promise<Pet>' },
      { name: 'getByOwner', returnType: 'Promise<Pet[]>' },
      { name: 'getHistory', returnType: 'Promise<PetHistory[]>' },
    ]
  },
  {
    name: 'ReservationService',
    type: 'service',
    layer: 'application',
    methods: [
      { name: 'create', returnType: 'Promise<Reservation>' },
      { name: 'confirm', returnType: 'Promise<Reservation>' },
      { name: 'cancel', returnType: 'Promise<Reservation>' },
      { name: 'getAvailableSlots', returnType: 'Promise<TimeSlot[]>' },
    ]
  },
  // ...more components
];

Architecture Recommendations

Based on domain, MUSUBIX recommends:

Multi-Domain Projects

For projects spanning multiple domains:

Copyconst result = domainDetector.detect(`
  ECサイトで商品を販売し、配送追跡も行いたい。
  在庫管理とサブスクリプション機能も必要。
`);

// Result:
// {
//   primaryDomain: { id: 'ecommerce' },
//   secondaryDomains: [
//     { id: 'delivery' },
//     { id: 'inventory' },
//     { id: 'subscription' }
//   ]
// }

Using in Design Documents

Copy# DES-SHOP-001: ECサイト設計

## ドメイン分析
- **主ドメイン**: ecommerce
- **副ドメイン**: inventory, payment, delivery

## 推奨コンポーネント

### ecommerce ドメイン
| コンポーネント | 種別 | 責務 |
|---------------|------|------|
| CartService | Service | カート管理 |
| ProductCatalog | Service | 商品カタログ |
| OrderProcessor | Service | 注文処理 |

### inventory ドメイン
| コンポーネント | 種別 | 責務 |
|---------------|------|------|
| StockManager | Service | 在庫管理 |
| ReorderService | Service | 発注管理 |

Related Skills

• musubix-c4-design - Create architecture with inferred components
• musubix-code-generation - Generate code for components
• musubix-sdd-workflow - Full workflow with domain awareness