Domain Model Extractor Skill

Extracts domain models from monolithic codebases using Domain-Driven Design principles to support microservices decomposition.

Purpose

Enable domain analysis for:

• Bounded context identification
• Aggregate detection
• Entity relationship mapping
• Domain event discovery
• Ubiquitous language extraction

Capabilities

1. Bounded Context Identification

• Analyze code modules
• Identify domain boundaries
• Map team ownership
• Define context relationships

2. Aggregate Detection

• Find aggregate roots
• Map entity relationships
• Identify invariants
• Define consistency boundaries

3. Entity Relationship Mapping

• Extract entities
• Map relationships
• Identify value objects
• Document associations

4. Domain Event Discovery

• Find implicit events
• Map state changes
• Identify triggers
• Document event flows

5. Ubiquitous Language Extraction

• Build domain vocabulary
• Map term usage
• Identify synonyms
• Create glossary

6. Context Map Generation

• Map context relationships
• Identify integration patterns
• Document shared kernels
• Define anti-corruption layers

Tool Integrations

| Tool | Purpose | Integration Method | |------|---------|-------------------| | EventStorming tools | Domain discovery | Manual/Digital | | Architecture analyzers | Code analysis | CLI | | Visualization tools | Context mapping | Export | | Custom AST analyzers | Code parsing | CLI |

Output Schema

json
{
  "extractionId": "string",
  "timestamp": "ISO8601",
  "domain": {
    "boundedContexts": [
      {
        "name": "string",
        "purpose": "string",
        "aggregates": [],
        "entities": [],
        "events": [],
        "services": []
      }
    ],
    "contextMap": {
      "relationships": []
    }
  },
  "ubiquitousLanguage": {
    "terms": []
  },
  "recommendations": {
    "serviceDecomposition": [],
    "integrationPatterns": []
  }
}

Integration with Migration Processes

• monolith-to-microservices: Domain analysis
• migration-planning-roadmap: Strategic design

Related Skills

• architecture-analyzer: Structure analysis

Related Agents

• ddd-analyst: DDD expertise
• microservices-decomposer: Service extraction