excalidraw SKILL.md skillA
excalidraw from vanducng/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vanducng/skills/excalidraw@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vanducng/skills
- Path
skills/excalidraw/SKILL.md- Versions recorded
- 5
- Latest version
- v1.1.0, committed Sep 11, 2026
- First version recorded
- Jun 17, 2026
- Size
- 11,777 bytes
- Repository stars
- 8
- License
- MIT
MANDATORY prerequisite for ALL Excalidraw MCP tool usage. Read BEFORE calling any Excalidraw tool (batch_create_elements, create_element, update_element, etc.). Without the sizing formulas, two-batch ordering (shapes-then-arrows), compact legends, domain styling presets, and write-check-review cycle in this skill, diagrams have invisible arrows, truncated text, and inconsistent colors. Use whenever the user asks to draw, sketch, visualize, or diagram anything technical - system architecture…
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 - Technical Diagram Skill
Build professional, consistent Excalidraw diagrams via MCP: tool mechanics, sizing formulas, the write-check-review verification cycle, and domain styling presets.
## Step 0 - Detect Connection
Check **in order**:
1. **MCP server**: tools prefixed `mcp__excalidraw-mcp__*` (e.g. `batch_create_elements`, `describe_scene`) available → use MCP mode. This is the default for this user.
2. **REST fallback**: only if MCP missing - `curl -s $EXPRESS_SERVER_URL/health` returns `{"status":"ok"}`.
3. **Nothing** → auto-bootstrap the MCP config (see below), then tell user to reconnect the MCP so it registers. Do not fake output.
### Auto-bootstrap `.mcp.json`
When neither the MCP tools nor the REST fallback are available:
1. Resolve **project root**: `git rev-parse --show-toplevel` (fallback to CWD if not a git repo). Inside a git worktree this correctly returns the worktree itself - `.mcp.json` must live at the working root the session runs in, so the MCP registers for that session.
2. Derive **project name** = `basename` of the project root.
…Read the whole file at its exact version.
How to install
mdr add vanducng/skills/excalidraw@sha256:5096e790051f3da6The line at the top of this page pins the label v1.1.0, 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.
[](https://markdownregistry.com/a/art_2tliq627sfwnsc4c)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 17, 2026 and Sep 11, 2026, about one every 21 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1.0 latest | 2026-09-11 | 9e58ef3 | 11,777 B | A | view · diff |
| v1.1.0 | 2026-08-19 | 204f73f | 19,200 B | A | view · diff |
| v1.1.0 | 2026-07-24 | 51405ee | 19,202 B | A | view · diff |
| v1.1.0 | 2026-07-10 | 6f1e7cf | 19,248 B | A | view · diff |
| v1.1.0 | 2026-06-17 | 55fdabe | 19,023 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11777 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
vanducng/skills · 8 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2tliq627sfwnsc4c GET https://markdownregistry.com/api/v1/resolve?ref=vanducng/skills/excalidraw GET https://markdownregistry.com/api/v1/blob/5096e790051f3da65ef8ae3f3bf6c9581bd15508514a6bc77c521f126304a2b5
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.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.