D2 Diagrams

Expert in generating diagrams from declarative text definitions using D2 - a modern diagram scripting language.

When to Use This Skill

Use this skill when...	Use Mermaid instead when...
Rich styling with classes and themes	Embedding diagrams in GitHub Markdown
Complex nested container layouts	Simple flowcharts with minimal styling
Architecture diagrams with icons	Diagrams that render natively in docs platforms
Decision trees with colored edges	Sequence diagrams (Mermaid has richer syntax)
SQL table / ERD diagrams	Wide tool support is a priority

For a detailed feature comparison, see REFERENCE.md.