aggregate-design

Define Domain-Driven Design Aggregate boundaries using invariant-testing decision trees.

1|Updated Jun 20, 2026

Search Tags:#architecture #ddd #go #domain-driven-design #aggregate #event-sourcing

Ready to run

npx skills add https://github.com/shafibabar/SDLC-Artifact-Factory --skill aggregate-design-shafibabar

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: aggregate-design
Source: https://github.com/shafibabar/SDLC-Artifact-Factory/tree/main/skills/aggregate-design
Command: npx skills add https://github.com/shafibabar/SDLC-Artifact-Factory --skill aggregate-design-shafibabar

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill solves the common architectural challenge of defining correct consistency boundaries in Domain-Driven Design, preventing the performance and scalability issues caused by oversized or poorly scoped Aggregates.

Core Features & Use Cases

Boundary Validation: Provides a rigorous, step-by-step decision framework to determine if objects belong together or should be separated.
Invariant Enforcement: Guides the identification of True Invariants versus business rules that can tolerate eventual consistency.
Implementation Guidance: Offers prescriptive Go patterns for identity generation, concurrency strategies, and event-sourced design.
Use Case: Use this Skill when designing a new Bounded Context to ensure your Aggregate roots are correctly sized and that cross-Aggregate coordination is handled via reliable Domain Events rather than distributed transactions.

Quick Start

Use the aggregate-design skill to scaffold a new design document for the Order Bounded Context in the E-commerce product.

Frequently Asked Questions about aggregate-design

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I determine correct consistency boundaries for Domain-Driven Design aggregates?▼

To determine correct aggregate boundaries in DDD, apply a tactical decision tree that validates whether objects belong together or should be separated. This framework distinguishes true invariants from rules allowing eventual consistency, preventing oversized aggregates from causing performance and scalability issues.

When should I separate domain objects into different aggregates instead of grouping them together?▼

You should separate domain objects into different aggregates when they do not share true business invariants. The framework guides this boundary validation by distinguishing strict consistency rules from business rules that can tolerate eventual consistency, preventing poorly scoped aggregates.

How do I handle cross-aggregate references in Go without using distributed transactions?▼

Handle cross-aggregate references in Go by using identity-based referencing rather than direct object references. Coordinate cross-aggregate mutations by emitting reliable Domain Events instead of distributed transactions, ensuring root-controlled mutations and scalable domain models.

Does this DDD aggregate design approach support event sourcing in Go?▼

Yes, this DDD aggregate design approach supports event sourcing in Go by offering prescriptive implementation patterns for event-sourced design. It provides specific guidance for identity generation and concurrency strategies to build high-performance, scalable domain models with root-controlled mutations.

What are the common scalability issues caused by poorly scoped Domain-Driven Design aggregates?▼

Poorly scoped Domain-Driven Design aggregates cause performance and scalability issues by enforcing unnecessary transactional consistency across large object graphs. Applying invariant-testing decision trees ensures aggregate roots are correctly sized and encapsulate business logic through root-controlled mutations.