---

name: domain-model-extractor description: Extract domain models from monolithic codebases using DDD principles for microservices decomposition allowed-tools: ["Bash", "Read", "Write", "Grep", "Glob", "Edit"] graph: domains: [domain:software-engineering] specializations: [specialization:code-migration-modernization] skillAreas: [skill-area:domain-driven-design, skill-area:hexagonal-architecture] roles: [role:architect, role:tech-lead] workflows: [workflow:technical-debt-reduction] topics: [topic:refactoring, topic:monolith-to-microservices]

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

{
  "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