Hand-drawn-style diagrams and sketches via the Excalidraw format (.excalidraw JSON), exportable to SVG/PNG. Use for whiteboard-style, concept, and freeform sketches.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Excalidraw
Excalidraw produces clean hand-drawn-style diagrams. Emit a `.excalidraw` JSON file the user can open in the Excalidraw editor (or excalidraw CLI), and optionally export to SVG.
## When to use
- "make an excalidraw / sketch / whiteboard of …"
- Concept maps, org charts, rough architecture sketches where a polished SVG is overkill.
- The user explicitly asks for hand-drawn style.
## How to produce
1. Compose the scene as `.excalidraw` JSON: elements (`rectangle`, `ellipse`, `diamond`, `arrow`, `line`, `text`) with `x/y/width/height`, `strokeColor`, `backgroundColor`, `fontSize`, and bound labels.
2. Connect shapes with arrows that reference `startBinding`/`endBinding` to element IDs so they stay attached.
3. Save to `<name>.excalidraw` and state the path.
4. If a static export is wanted, convert to SVG/PNG (excalidraw CLI or the npm `@excalidraw/utils` package via `bunx`).
## Minimal element template
```json
{
"type": "excalidraw",
"version": 2,
"source": "cybara",
"elements": [
{
"type": "rectangle", "x": 100, "y": 100, "width": 160, "height": 60,
"strokeColor": "#1e1e1e", "backgroundColor": "transparent",
…
The line at the top of this page pins the label git:20260624.52cbbd6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (1776 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
metaspartan/cybara · 32 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4eyxe47rxmrt5pu2
GET https://markdownregistry.com/api/v1/resolve?ref=metaspartan/cybara/excalidraw
GET https://markdownregistry.com/api/v1/blob/7a60136353fce2587dcb3286f809e7602f571b10dceb2ae4d29007d135500f7b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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