hexagonal-architecture SKILL.md skillA
hexagonal-architecture from rrezartprebreza/spring-boot-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add rrezartprebreza/spring-boot-skills/hexagonal-architecture@git:20261017.a317397Pins git:20261017.a317397 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- rrezartprebreza/spring-boot-skills
- Path
skills/spring-boot-3/hexagonal-architecture/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261017.a317397, committed Oct 17, 2026
- First version recorded
- Jul 4, 2026
- Size
- 5,782 bytes
- Repository stars
- 338
- License
- MIT
Use when the project follows hexagonal (ports & adapters) architecture. Prevents domain code from depending on Spring or JPA. Use when you see packages like domain/, application/, infrastructure/, or adapters/ in the project structure.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Hexagonal Architecture
## Package Structure
```
src/main/java/com/example/
├── domain/ ← Pure Java. Zero framework dependencies.
│ ├── model/ ← Entities, value objects, aggregates
│ ├── port/
│ │ ├── in/ ← Use case interfaces (driving ports)
│ │ └── out/ ← Repository/external interfaces (driven ports)
│ └── service/ ← Domain services (pure business logic)
├── application/ ← Orchestrates use cases. Spring allowed here.
│ └── usecase/ ← @Service implementations of domain ports
└── infrastructure/ ← All framework/DB/HTTP details
├── persistence/ ← JPA adapters implementing out ports
├── web/ ← REST controllers (driving adapters)
└── external/ ← HTTP clients, messaging adapters
```
## Domain Layer — Zero Spring
```java
// domain/model/Order.java — pure Java, no annotations
public class Order {
private final OrderId id;
private final CustomerId customerId;
private OrderStatus status;
private final List<OrderItem> items;
…Read the whole file at its exact version.
How to install
mdr add rrezartprebreza/spring-boot-skills/hexagonal-architecture@sha256:a3d78da654fb8037The line at the top of this page pins the label git:20261017.a317397, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_rvpujnw5e4nxw23w)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 4, 2026 and Oct 17, 2026, about one every 105 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261017.a317397 latest | 2026-10-17 | a317397 | 5,782 B | A | view · diff |
| git:20260704.22f1701 | 2026-07-04 | 22f1701 | 5,695 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5782 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
rrezartprebreza/spring-boot-skills · 338 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rvpujnw5e4nxw23w GET https://markdownregistry.com/api/v1/resolve?ref=rrezartprebreza/spring-boot-skills/hexagonal-architecture GET https://markdownregistry.com/api/v1/blob/a3d78da654fb80379c8da7c05f4cce0c071bf5670420f77308aca1464fd4acff
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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