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Domain-Driven Design (Spring Boot 3)

Guides Claude to build rich DDD domain models — aggregates, value objects, domain events and anti-corruption layers — in Spring Boot 3 projects.

Dev & CodingAdvanced★ 243⑂ 39AI score 8/10Last updated: Aug 14, 2026

What it does

  • Enforces aggregate rules: one repository per root, access only through the root, reference other aggregates by ID, keep aggregates small.
  • Produces immutable value objects as Java records with validation in compact constructors (Money, EmailAddress).
  • Collects domain events inside the aggregate and publishes them after a successful save, using @TransactionalEventListener(AFTER_COMMIT); also shows Spring Data's @DomainEvents / @AfterDomainEventPublication auto-publishing.
  • Uses composable Specification classes for complex queries and an Anti-Corruption Layer in the infrastructure tier for third-party APIs.
  • A "Gotchas" list catches typical agent mistakes: anemic models, raw Long IDs, business logic leaking into services.

Who it's for

  • Java developers building DDD-style backends on Spring Boot 3 + JPA.
  • Teams refactoring getter/setter-only entities into behavior-rich domain models.
  • Architects keeping legacy or vendor models out of the domain layer.

Example uses

  1. "Add item add/remove to the order domain" → root methods like order.addItem(...) instead of exposing the child collection.
  2. "Send a confirmation email when an order is placed" → an OrderPlaced event collected in the aggregate and handled asynchronously after commit.
  3. "I need a search endpoint by status, customer and date range" → composed OrderSpecifications with Pageable.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/rrezartprebreza/spring-boot-skills/HEAD/skills/spring-boot-3/domain-driven-design/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/spring-boot-3/domain-driven-design folder from the GitHub repo rrezartprebreza/spring-boot-skills into my ~/.claude/skills/domain-driven-design/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/rrezartprebreza/spring-boot-skills.git && mkdir -p ~/.claude/skills && cp -r spring-boot-skills/skills/spring-boot-3/domain-driven-design ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/rrezartprebreza/spring-boot-skills.git
  3. Create the skills folder: mkdir -p ~/.claude/skills
  4. Copy just this skill: cp -r spring-boot-skills/skills/spring-boot-3/domain-driven-design ~/.claude/skills/
  5. (Optional) Copy the referenced transactional-patterns skill too, since the event section links to it.
  6. Restart Claude Code and ask something like "design an order aggregate" to confirm the skill loads.
View source on GitHub ↗License: MIT