architecture-patterns SKILL.md skillA

architecture-patterns from nicholyx/ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add nicholyx/ai-skills/architecture-patterns@git:20260516.dd241a9

Pins git:20260516.dd241a9 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
nicholyx/ai-skills
Path
.agents/skills/architecture-patterns/SKILL.md
Versions recorded
2
Latest version
git:20260516.dd241a9, committed May 16, 2026
First version recorded
May 16, 2026
Size
18,698 bytes
Repository stars
6
License
Apache-2.0

Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design. Use this skill when designing clean architecture for a new microservice, when refactoring a monolith to use bounded contexts, when implementing hexagonal or onion architecture patterns, or when debugging dependency cycles between application layers.

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

# Architecture Patterns

Master proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design to build maintainable, testable, and scalable systems.

**Given:** a service boundary or module to architect.
**Produces:** layered structure with clear dependency rules, interface definitions, and test boundaries.

## When to Use This Skill

- Designing new backend services or microservices from scratch
- Refactoring monolithic applications where business logic is entangled with ORM models or HTTP concerns
- Establishing bounded contexts before splitting a system into services
- Debugging dependency cycles where infrastructure code bleeds into the domain layer
- Creating testable codebases where use-case tests do not require a running database
- Implementing domain-driven design tactical patterns (aggregates, value objects, domain events)

## Core Concepts

### 1. Clean Architecture (Uncle Bob)

**Layers (dependency flows inward):**

- **Entities**: Core business models, no framework imports
- **Use Cases**: Application business rules, orchestrate entities
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nicholyx/ai-skills/architecture-patterns@sha256:c53973f453ec828c

The line at the top of this page pins the label git:20260516.dd241a9, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_miaoaebgslajsebq.svg)](https://markdownregistry.com/a/art_miaoaebgslajsebq)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on May 16, 2026.

versioncommittedcommitsizeaudit
git:20260516.dd241a9 latest2026-05-16 dd241a9 18,698 BA view · diff
git:20260516.4d9ab132026-05-16 4d9ab13 13,989 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (18698 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

GitHub

nicholyx/ai-skills · 6 stars · license Apache-2.0 · pushed 2026-10-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_miaoaebgslajsebq
GET https://markdownregistry.com/api/v1/resolve?ref=nicholyx/ai-skills/architecture-patterns
GET https://markdownregistry.com/api/v1/blob/c53973f453ec828c4761921952acadaa933f3d8dd01eace6102f8c5316cf643f

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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