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excalidraw

100 / 100 · Low risk

Fine to try.

By nimbalyst/nimbalyst (GitHub) · coding · 2,059 stars · scanned at commit e3f7fa8

Create diagrams and visual drawings using Excalidraw (.excalidraw files). Use when the user wants flowcharts, architecture diagrams, system diagrams, sketches, or any visual diagram. For database schemas and entity relationship diagrams, use the DataModelLM extension instead.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'excalidraw' ] || [ -L ~/.agents/skills/'excalidraw' ]; then echo 'A skill folder named excalidraw already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/nimbalyst/nimbalyst' "$d" && git -C "$d" checkout --quiet 'e3f7fa81dc663b781a84d5d92421f2aee24c372e' -- 'packages/extensions/excalidraw/claude-plugin/skills/excalidraw' && mkdir -p ~/.agents/skills && cp -R "$d"/'packages/extensions/excalidraw/claude-plugin/skills/excalidraw' ~/.agents/skills/'excalidraw' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'excalidraw' ~/.claude/skills/'excalidraw' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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