ClaudSkills / Engineering / architecture

Creating C4 Diagrams

Quality score: 70/100 · Category: Engineering · Sub-category: architecture

type:review

Creates, reviews, and interprets C4 software architecture diagrams (System Context, Container, Component, Dynamic, Deployment). Produces Structurizr DSL or Mermaid C4 diagram code following C4 model best practices. Use when the requested output is explicitly C4, when reviewing existing C4 diagrams for correctness and anti-patterns, when generating Structurizr DSL workspaces, when producing Mermaid C4 diagrams for READMEs, or when using C4 diagrams as context for design decisions, code generation, risk analysis, or onboarding.

What this skill does

Creating C4 Diagrams is a production-ready Claude Code skill (quality score 70/100) in the architecture sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/creating-c4-diagrams/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the requested output is explicitly C4, when reviewing existing C4 diagrams for correctness and anti-patterns, when generating Structurizr DSL workspaces, when producing Mermaid C4 diagrams for READMEs, or when using C4 diagrams as context for design decisions, code generation, risk analysis, or onboarding.

Who uses this skill

The Creating C4 Diagrams skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/creating-c4-diagrams
curl -L https://claudskills.com/skills/creating-c4-diagrams/SKILL.md \
  -o ~/.claude/skills/creating-c4-diagrams/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/creating-c4-diagrams/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/creating-c4-diagrams/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\creating-c4-diagrams\SKILL.md on Windows. See the full install guide for step-by-step instructions.

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.

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