Fireworks Tech Graph

This one generates technical diagrams as SVG and exports them to PNG. It handles architecture diagrams, data flows, flowcharts, sequence diagrams, and agent memory layouts. The workflow is methodical: classify your diagram type, load the right style reference from the included templates, map your components to shapes, write the SVG, validate it, then convert to PNG with cairosvg. It ships with four helper scripts that handle validation and template rendering, which is smart because hand-writing valid SVG gets messy fast. The documentation includes specific layout rules for each diagram type, like how to route arrows in sequence diagrams or structure memory tiers in agent architectures. If you need production diagrams without fighting with Mermaid or Graphviz quirks, this gives you direct control.