sitin

diagram-design turns a plain-language request into a branded HTML file with inline SVG, choosing the chart type first across 40-plus options like architecture, sequence, Gantt, Sankey and Wardley maps.

The cad skill turns a described part into editable parametric CAD: the agent writes modeling code, the engine builds a STEP, STL or 3MF model, and chat edits revise holes or thickness.