Excalidraw

Create, patch, validate, and render Excalidraw diagrams through deterministic JSON and layout checks before delivery.From its SKILL.md

Install

npx -y skills add batteryshark/skill-tap --skill excalidraw

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

0.9 KB, 175 tokens by cl100k_base, as published. Nobody here has run it

Establish the audience, message, diagram type, required facts, output path, and readability target.
Read references/excalidraw-format.md, then compose or patch .excalidraw JSON with stable IDs and bound text.
Run bin/excalidraw FILE to validate document shape, element bounds, overlaps, dangling bindings, and canvas extent.
Render with an available Excalidraw-compatible renderer, inspect the image, and revise spacing, hierarchy, color contrast, labels, and edge routing.
Preserve editable JSON and deliver a rendered artifact. Never claim visual quality from schema validation alone.

Use agents/diagram-reviewer.md for an independent visual and semantic review.

2.5 KB alongside SKILL.md, 2 of them executable