Is the Architecture Designer skill free?

Yes. The skill itself is free from Jeffallan/claude-skills. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Architecture Designer SkillProof Score?

7.2/10 — installs cleanly 5/5, triggers reliably 3/5, output vs. baseline 5/10, docs & honesty 5/5.

How do I install Architecture Designer?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Architecture Designer with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Architecture Designer

Designs system architecture and writes ADRs to document key technical decisions.

by Jeffallan · Jeffallan/claude-skills

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 7.2/10
Tested: Jul 12, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · c3014c3

Installed verbatim (git clone + cp) with valid YAML frontmatter and all 5 reference files present; no external dependencies or API keys. Trigger docked because the description claims to exclude code-level design patterns and database-only tasks, yet metadata.triggers lists 'design pattern' and the reference table routes database-selection questions inward. A/B on a URL-shortener system-design task showed the skill and base outputs at equal quality — both delivered a correct requirements summary, Mermaid diagram, well-formed ADR with 2+ datastore alternatives, and risk analysis; the skill's ADR/pattern reference framework produced no materially more rigorous design.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 3/5
Output vs. baseline 5/10
Docs & honesty 5/5

What Architecture Designer does

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…

How to install Architecture Designer

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

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Architecture Designer

/architecture-designer Designs system architecture and writes ADRs to document key technical decisions.

It also activates on plain-language prompts like these:

Design the architecture for this new microservice
Write an ADR for choosing this database
Review our architecture for scalability gaps

Frequently asked questions

Is the Architecture Designer skill free?: Yes. The skill itself is free from Jeffallan/claude-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Architecture Designer work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 12, 2026. Verdict: Works with setup. Installed verbatim (git clone + cp) with valid YAML frontmatter and all 5 reference files present; no external dependencies or API keys. Trigger docked because the description claims to exclude code-level design patterns and database-only tasks, yet metadata.triggers lists 'design pattern' and the reference table routes database-selection questions inward. A/B on a URL-shortener system-design task showed the skill and base outputs at equal quality — both delivered a correct requirements summary, Mermaid diagram, well-formed ADR with 2+ datastore alternatives, and risk analysis; the skill's ADR/pattern reference framework produced no materially more rigorous design.
What is the Architecture Designer SkillProof Score?: 7.2/10 — installs cleanly 5/5, triggers reliably 3/5, output vs. baseline 5/10, docs & honesty 5/5.
How do I install Architecture Designer?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Architecture Designer with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.