Write and render D2 diagram code to SVG without the d2 binary.
npx skills add https://github.com/ItsJooL/d2-mcp --skill d2-itsjool
Please help me install this Agent Skill. Skill: d2 Source: https://github.com/ItsJooL/d2-mcp/tree/main/skills/d2 Command: npx skills add https://github.com/ItsJooL/d2-mcp --skill d2-itsjool
D2 provides a declarative diagram language that compiles to SVG, enabling LLMs to write, validate, and render diagrams without needing the d2 binary.
Draft your D2 code using the core syntax (shapes, connections, and containers), then call d2_inspect to preview the structure before rendering with d2_render.
High-intent search queries and answers about installing and using this skill.
You can generate SVG architecture diagrams by writing D2 syntax that compiles directly to SVG output, bypassing the need for a local d2 binary installation. This approach uses built-in validation and rendering tools to process your code.
D2 handles cross-container connections by using the underscore character to reference parent scopes, allowing you to link nested shapes across different containers. This maintains a clean declarative structure while mapping complex architectures.
D2 syntax supports architecture diagrams, flowcharts, sequence diagrams, ER diagrams, class diagrams, and C4-style visualizations. You can also utilize containers, grid layouts, and theme support for flexible visual outputs.
No external dependencies are required to render D2 diagrams to SVG. You can validate and render your code using built-in tooling like d2_render and d2_inspect, eliminating the need for external binaries.
The best way to validate D2 diagram code is to use the d2_inspect tool to preview the structure and syntax. This ensures your containers and connections are correct before you proceed to render the final SVG output with d2_render.
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