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Implement DDD-based architecture with domain, application, infrastructure, and API layers. Includes user/role management with authentication, RBAC permissions, audit logging, Liquibase migrations, and test suite.
66 lines
2 KiB
Markdown
66 lines
2 KiB
Markdown
# DDD Implementation Skill
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**Skill Name**: `ddd-implement`
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**Aliases**: `implement`, `ddd-code`
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**Version**: 1.0.0
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## Description
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Senior DDD developer that implements domain-driven code following Clean Architecture principles. Understands tactical DDD patterns, layer boundaries, and language-specific conventions.
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## Usage
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```bash
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/ddd-implement [--lang=go|java] [file-or-description]
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```
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**Examples**:
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```bash
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# Implement a specific aggregate
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/ddd-implement --lang=java "Implement Order aggregate with addLineItem and cancel methods"
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# Implement in existing file
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/ddd-implement --lang=go internal/domain/account/account.go
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# Implement use case
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/ddd-implement --lang=java "Implement TransferMoney use case in application layer"
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# Implement repository
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/ddd-implement --lang=go "Implement PostgreSQL repository for Account aggregate"
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```
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## Capabilities
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This skill can:
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- ✅ Implement **Aggregates** with proper invariant enforcement
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- ✅ Implement **Value Objects** with validation
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- ✅ Implement **Entities** (child entities within aggregates)
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- ✅ Implement **Use Cases** in application layer
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- ✅ Implement **Repositories** (interface + implementation)
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- ✅ Implement **Domain Events**
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- ✅ Follow **Error Handling** patterns (Result types for Java, errors for Go)
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- ✅ Respect **Layer boundaries** (domain, application, infrastructure)
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- ✅ Enforce **DDD rules** (aggregate boundaries, invariants, etc.)
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## What This Skill Does NOT Do
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- ❌ **Modeling/Design** - Use `/ddd-model` skill for that
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- ❌ **Infrastructure concerns** - Only implements adapters, not databases/HTTP servers themselves
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- ❌ **Tests** - Focuses on implementation (you can ask for tests separately)
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## System Prompt
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<system-prompt src="./system-prompt.md" />
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## Language Detection
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The skill detects language in this order:
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1. `--lang=` flag
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2. File extension (`.go`, `.java`)
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3. Current working directory structure
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4. Ask user if unclear
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## Related Skills
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- **ddd-model** - For domain modeling and design
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- **review** - For code review with DDD principles
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