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Agent Skill

Architecture Patterns skill

architecture-patternswshobson/agentsplugins/backend-development/skills/architecture-patterns/SKILL.md

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.

42kMIT

always on

65 tokname + description

once used

1,558 tokSKILL.md body

bundled files

226 KB

repo stars

42kGitHub

Install the Architecture Patterns skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/wshobson/agents --skill architecture-patterns

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/wshobson/agents.git /tmp/agents
mkdir -p ~/.claude/skills
cp -R /tmp/agents/plugins/backend-development/skills/architecture-patterns ~/.claude/skills/architecture-patterns

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description65 tok
When the agent uses itThe SKILL.md instructions1,558 tok
Only if opened2 bundled files (26 KB)varies

Until it is used, architecture-patterns costs about 21× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 150 skills from wshobson/agents would load 7,688 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • Architecture Patterns
  • When to Use This Skill
  • Core Concepts
  • 1. Clean Architecture (Uncle Bob)
  • 2. Hexagonal Architecture (Ports and Adapters)
  • 3. Domain-Driven Design (DDD)
  • Detailed patterns and worked examples
  • Testing — In-Memory Adapters
  • Troubleshooting
  • Use case tests require a running database
  • Circular imports between layers
  • Framework decorators appearing in domain entities
  • All logic ending up in controllers
  • Value objects raising errors too late
  • Context bleed across bounded contexts
  • Advanced Patterns
  • Related Skills

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