Create polished, accessible, self-contained HTML/SVG diagrams for architecture, workflows, data flows, sequences, state machines, ER models, timelines, swimlanes, charts, security views, and other editorial visual types. Redraw Mermaid and draw.io sources into a fresh layout, apply optional brand tokens, and verify geometry, accessibility, motion, and single-file safety. Use when the output should be an editable HTML/SVG artifact rather than an ASCII sketch, generated raster image, or editable whiteboard canvas.
