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Architecture Designer

Turns Claude into a senior architect that designs systems, weighs technology trade-offs, and writes ADRs.

Dev & CodingIntermediate★ 11,102⑂ 1,053AI score 9/10Last updated: Aug 7, 2026

What it does

Gives Claude a principal-architect persona plus a disciplined process for high-level system design.

  • 5-step workflow: gather requirements → identify patterns → design with explicit trade-offs → document ADRs → stakeholder review (loop back on failure)
  • Output template: requirements summary, Mermaid architecture diagram, ADR-formatted decisions, technology recommendations with rationale, risks and mitigations
  • Context-loaded references: architecture patterns, ADR template, system design template, database selection, NFR checklist
  • Guardrails: no over-engineering for hypothetical scale, no technology picks without evaluating alternatives, never skip security

Who it's for

  • Backend/platform engineers designing a new service from scratch
  • Tech leads evaluating a monolith-to-microservices move
  • Teams that need decisions captured as ADRs
  • Senior engineers preparing an architecture review

Examples

  1. "Design the backend architecture for an e-commerce system with order, payment, and notification services" → Mermaid diagram plus service boundaries and trade-offs
  2. "Write an ADR comparing PostgreSQL and DynamoDB for order storage" → full ADR with context, alternatives, consequences
  3. "Review our current monolith and flag scalability bottlenecks" → failure modes and mitigations mapped against the NFR checklist

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/Jeffallan/claude-skills/HEAD/skills/architecture-designer/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/architecture-designer folder from the GitHub repo Jeffallan/claude-skills into my ~/.claude/skills/architecture-designer/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/Jeffallan/claude-skills.git /tmp/claude-skills && mkdir -p ~/.claude/skills && cp -r /tmp/claude-skills/skills/architecture-designer ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/Jeffallan/claude-skills.git
  3. Create the skills directory: mkdir -p ~/.claude/skills
  4. Copy the whole skill folder so the references/ files come along: cp -r claude-skills/skills/architecture-designer ~/.claude/skills/
  5. Restart Claude Code and confirm architecture-designer appears in your skill list.
  6. Try a prompt like "Design the architecture for a new payments system" to trigger it.
View source on GitHub ↗License: MIT