Generate Mermaid diagrams (flowcharts, sequence, class, state, ER, C4, mindmaps, gitgraph). Use when asked to create diagrams, visualize processes, document architecture, or explain systems visually. Triggers include "diagram", "flowchart", "sequence diagram", "class diagram", "state diagram", "ER diagram", "C4", "mindmap", "gitgraph", "visualize", "draw".
Install
npx skills add alexanderop/second-brain-nuxt --skill mermaid-diagramsnpx skills add alexanderop/second-brain-nuxt --skill mermaid-diagrams -a claude-code -gnpx skills add alexanderop/second-brain-nuxt --skill mermaid-diagrams -a codex -ggemini skills install https://github.com/alexanderop/second-brain-nuxt.git --path .claude/skills/mermaid-diagramsgh skill install alexanderop/second-brain-nuxt mermaid-diagramsgit clone --depth 1 https://github.com/alexanderop/second-brain-nuxt /tmp/alexanderop__second-brain-nuxt
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/alexanderop__second-brain-nuxt/.claude/skills/mermaid-diagrams ~/.claude/skills/mermaid-diagrams # Claude Code
cp -R /tmp/alexanderop__second-brain-nuxt/.claude/skills/mermaid-diagrams ~/.agents/skills/mermaid-diagrams # Codex, Cursor, Gemini CLI, Copilot, OpenCode