3 tagged diagrams-as-code, measured the same way as everything else here.
Skill Claude CodeCodex
Programmatic canvas toolkit for creating, editing, and refining Excalidraw diagrams via MCP tools with real-time canvas sync. Use when an agent needs to (1) draw or lay out diagrams on a live canvas, (2) iteratively refine diagrams using describescene and getcanvasscreenshot to see its own work, (3) export/import…
LabinatorSolutions/kroki-editorial-diagrams
Skill Claude Code
Create premium, responsive, interactive diagrams (flowcharts, sequence, architecture, data models, timing, data visualization) with an elegant editorial design aesthetic. Chooses the optimal layout engine (PlantUML, C4, D2, Mermaid, Graphviz, Structurizr, WaveDrom, Vega-Lite, ERD, BPMN, and more) and exports to…
john7ross/dochub-architect-tool
Skill Claude CodeCodex
A tool-assisted workflow for creating and moving architecture diagrams into a DocHub YAML repository. It works with DrawIO and PlantUML diagrams using the C4 model, a way to describe systems at different levels of detail.