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Hexagonal Architecture

Category: Engineering  ·  Sub-category: architecture  ·  Last updated:
type:review
Design, implement, and maintain applications using hexagonal architecture (ports and adapters). Use when (1) designing new systems requiring clear separation between domain logic and infrastructure, (2) refactoring monolithic or tightly-coupled codebases toward cleaner boundaries, (3) reviewing architecture for dependency rule violations or layer leakage, (4) establishing testing strategies that isolate domain logic, or (5) evaluating whether hexagonal architecture suits a given problem domain.
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From the source SKILL.md

Hexagonal architecture (Alistair Cockburn, 2005) isolates domain logic from infrastructure concerns through explicit boundaries called ports (interfaces the domain exposes or requires) and adapters (implementations that connect ports to the outside world).

What this skill does

Hexagonal Architecture is a community-contributed Claude Code skill in the architecture sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/hexagonal-architecture/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when (1) designing new systems requiring clear separation between domain logic and infrastructure, (2) refactoring monolithic or tightly-coupled codebases toward cleaner boundaries, (3) reviewing architecture for dependency rule violations or layer leakage, (4) establishing testing strategies that isolate domain logic, or (5) evaluating whether hexagonal architecture suits a given problem domain.

Who uses this skill

The Hexagonal Architecture Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 153,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/hexagonal-architecture
curl -L https://claudskills.com/skills/hexagonal-architecture/SKILL.md \
  -o ~/.claude/skills/hexagonal-architecture/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/hexagonal-architecture/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/hexagonal-architecture/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\hexagonal-architecture\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Hexagonal Architecture Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/hexagonal-architecture/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Hexagonal Architecture skill do?
Design, implement, and maintain applications using hexagonal architecture (ports and adapters). Use when (1) designing new systems requiring clear separation between domain logic and infrastructure, (2) refactoring monolithic or tightly-coupled codebases toward cleaner boundaries, (3) reviewing architecture for dependency rule violations or layer leakage, (4) establishing testing strategies that isolate domain logic, or (5) evaluating whether hexagonal architecture suits a given problem domain.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Hexagonal Architecture skill?
Use Hexagonal Architecture when your Claude Code task falls under the Engineering category — specifically in the architecture area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Hexagonal Architecture" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Hexagonal Architecture skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Hexagonal Architecture is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
PackmindHub. (2026). Hexagonal Architecture [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/hexagonal-architecture/
BibTeX
@misc{hexagonal-architecture-2026,
  author    = {PackmindHub},
  title     = {Hexagonal Architecture [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/hexagonal-architecture/}
}

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