This skill generates Excalidraw diagrams from Claude's responses and exports them to PNG or SVG. It includes a surprisingly detailed layout engine with color palettes, font hierarchies, and element sizing rules that actually account for CJK character widths. The documentation explicitly discourages wrapping everything in boxes, which is refreshing. Two export paths: Kroki API for quick SVG output, or a local Firefox-based CLI for PNG. It comes with a macOS keyboard shortcut patch and specific guidance on when to draw proactively versus when a list is fine. If you're tired of ASCII art in technical explanations, this is the structured alternative.
npx skills add https://github.com/agents365-ai/365-skills --skill excalidraw