Design Code Architecture
Guided journey from an app idea to a deliberate architecture: boundaries, domain model, data decisions, and resilience, making only the expensive-to-reverse decisions and deferring the rest. Orchestrates eight skills phase by phase - clean-architecture, domain-driven-design, system-design, ddia-systems, software-design-philosophy, release-it, pragmatic-programmer, 37signals-way - asking the user questions at every decision point and recording results in the project docs/ folder (ARCHITECTURE.md, RELIABILITY.md, DESIGN-CODE-ARCHITECTURE-PLAN.md) so the journey resumes across sessions. Use when the user wants to design a new app''s architecture, choose boundaries and a domain model before building, decide monolith versus microservices, or says ''how should I structure this app''. If a codebase already exists, use remove-technical-debt (aged) or improve-code-quality (fresh prototype); if the idea is not validated, run create-business or create-app first. For one framework in isolation, invoke that skill directly.
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
Design the architecture for a new app: get the small number of expensive-to-reverse decisions right and stay aggressively simple everywhere else. This is an interactive, resumable journey of eight phases — the agent asks before every decision and records the outcome in your project's docs/ folder, so you can stop after any phase and resume later. It runs from the most foundational and hardest-to-reverse (boundaries, domain) through the tunable (data, resilience) to the cross-cutting disciplines (complexity, reversibility, scope) you apply throughout. A weekend project uses three phases…
What this skill does
Design Code 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/design-code-architecture/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when the user wants to design a new app''s architecture, choose boundaries and a domain model before building, decide monolith versus microservices, or says ''how should I structure this app''. If a codebase already exists, use remove-technical-debt (aged) or improve-code-quality (fresh prototype); if the idea is not validated, run create-business or create-app first.
Who uses this skill
The Design Code 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 158,000+ 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/design-code-architecture
curl -L https://claudskills.com/skills/design-code-architecture/SKILL.md \
-o ~/.claude/skills/design-code-architecture/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/design-code-architecture/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/design-code-architecture/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\design-code-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.
Frequently asked questions
How do I install the Design Code Architecture Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/design-code-architecture/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Design Code Architecture skill do?
Guided journey from an app idea to a deliberate architecture: boundaries, domain model, data decisions, and resilience, making only the expensive-to-reverse decisions and deferring the rest. Orchestrates eight skills phase by phase - clean-architecture, domain-driven-design, system-design, ddia-systems, software-design-philosophy, release-it, pragmatic-programmer, 37signals-way - asking the user questions at every decision point and recording results in the project docs/ folder (ARCHITECTURE.md, RELIABILITY.md, DESIGN-CODE-ARCHITECTURE-PLAN.md) so the journey resumes across sessions. Use when the user wants to design a new app''s architecture, choose boundaries and a domain model before building, decide monolith versus microservices, or says ''how should I structure this app''. If a codebase already exists, use remove-technical-debt (aged) or improve-code-quality (fresh prototype); if the idea is not validated, run create-business or create-app first. For one framework in isolation, invoke that skill directly.
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 Design Code Architecture skill?
Use Design Code 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 Design Code 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 Design Code 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. Design Code 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
wondelai. (2026). Design Code Architecture [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/design-code-architecture/
BibTeX
@misc{design-code-architecture-2026,
author = {wondelai},
title = {Design Code Architecture [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/design-code-architecture/}
}Embed this skill
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Security scan
Grade A · scanned 2026-07-23 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
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