architecture-designer

architecture-designer is an open-source design skill for Claude Code and compatible agents, published by Jeffallan. Its author describes it as: “Use when designing new high-level system architecture, reviewing existing designs, or making architectural decisions. Invoke to create architecture diagrams, write Architecture Decision Records (ADRs), evaluate techno…”. The project has 11k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add Jeffallan/claude-skills`.

What architecture-designer does

Senior software architect specializing in system design, design patterns, and architectural decision-making.

Installation

Add architecture-designer to your agent with:

/plugin marketplace add Jeffallan/claude-skills

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

What's inside

The SKILL.md for architecture-designer is organised into these sections:

• Role Definition
• When to Use This Skill
• Core Workflow
• Reference Guide
• Constraints
• MUST DO
• MUST NOT DO
• Output Templates
• Architecture Diagram (Mermaid)
• ADR Example

When to use it

Reach for architecture-designer when you want design help from your agent without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

• Clear MIT license — safe to read and adapt
• Ships in Jeffallan/claude-skills, an established project with 11,060 GitHub stars
• Actively maintained (recent commits)

Topics

Frequently asked questions

What does architecture-designer do?

Use when designing new high-level system architecture, reviewing existing designs, or making architectural decisions. Invoke to create architecture diagrams, write Architecture Decision Records (ADRs), evaluate technology trade-offs, design component interactions, and plan for scalability. Use for system design, architecture review, microservices structuring, ADR authoring, scalability planning, and infrastructure pattern selection — distinct from code-level design patterns or database-only design tasks.

How do I install architecture-designer?

Run /plugin marketplace add Jeffallan/claude-skills in your agent, then reload your skills. Review the source at https://github.com/Jeffallan/claude-skills before installing.

Is architecture-designer free to use?

Yes. architecture-designer is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.

Where does architecture-designer come from?

architecture-designer ships inside Jeffallan/claude-skills, a repository that contains 41 catalogued skills in total. The repository's 11,060 GitHub stars apply to that whole collection, not to this skill on its own.