ClaudSkills / Engineering / code-quality

Mermaid Sequence Diagrams

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

type:review

Generates, reviews, and fixes Mermaid-only sequence diagrams following syntax rules and best practices. Use when creating Mermaid sequence diagrams from system descriptions, reviewing existing Mermaid sequence diagrams for correctness, fixing parse errors, or refactoring large Mermaid sequence diagrams into focused sub-diagrams. Covers participants, arrows, activations, control flow, notes, styling, and common anti-patterns.

What this skill does

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

When to invoke it: Use when creating Mermaid sequence diagrams from system descriptions, reviewing existing Mermaid sequence diagrams for correctness, fixing parse errors, or refactoring large Mermaid sequence diagrams into focused sub-diagrams. Covers participants, arrows, activations, control flow, notes, styling, and common anti-patterns.

Who uses this skill

The Mermaid Sequence 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/mermaid-sequence-diagrams
curl -L https://claudskills.com/skills/mermaid-sequence-diagrams/SKILL.md \
  -o ~/.claude/skills/mermaid-sequence-diagrams/SKILL.md

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

Skills live at ~/.claude/skills/mermaid-sequence-diagrams/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\mermaid-sequence-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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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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