Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add aleksbuss/orchestra --skill excalidrawgit clone --depth 1 https://github.com/aleksbuss/orchestraWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/aleksbuss/orchestra/excalidraw)<a href="https://agentmods.dev/skills/aleksbuss/orchestra/excalidraw"><img src="https://agentmods.dev/badge/skills/aleksbuss/orchestra/excalidraw/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/aleksbuss/orchestra/excalidraw"><img src="https://agentmods.dev/badge/skills/aleksbuss/orchestra/excalidraw.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00051 | $0.02005 |
| Opus 5.5 | $0.00020 | $0.00802 |
| Sonnet 5.5 | $0.00010 | $0.00401 |
| Haiku 4.5 | $0.00005 | $0.00200 |
Grade A, and why
excalidraw scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 248 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Excalidraw Diagram Creation
This skill enables you to create beautiful, hand-drawn style diagrams in the Excalidraw JSON format.
File Format Overview
Excalidraw files (.excalidraw) are JSON with this structure:
{
"type": "excalidraw",
"version": 2,
"source": "https://excalidraw.com",
"elements": [],
"appState": {
"viewBackgroundColor": "#ffffff",
"gridSize": null
},
"files": {}
}
Quick Start - Creating Elements
Every element needs at minimum: type, id, x, y, and styling properties.
Minimal Rectangle
{
"type": "rectangle",
"id": "rect-1",
"x": 100,
"y": 100,
"width": 200,
"height": 100,
"angle": 0,
"strokeColor": "#1e1e1e",
"backgroundColor": "transparent",
"fillStyle": "solid",
"strokeWidth": 2,
"strokeStyle": "solid",
"roughness": 1,
"opacity": 100,
"seed": 1234,
"version": 1,
"versionNonce": 1234,
"isDeleted": false,
"groupIds": [],
"boundElements": null,
"link": null,
"locked": false,
"roundness": { "type": 3 }
}
Text Element
{
"type": "text",
"id": "text-1",
"x": 120,
"y": 130,
"width": 160,
"height": 25,
"text": "Hello World",
"fontSize": 20,
"fontFamily": 1,
"textAlign": "center",
"verticalAlign": "middle",
"angle": 0,
"strokeColor": "#1e1e1e",
"backgroundColor": "transparent",
"fillStyle": "solid",
"strokeWidth": 2,
"strokeStyle": "solid",
"roughness": 1,
"opacity": 100,
"seed": 5678,
"version": 1,
"versionNonce": 5678,
"isDeleted": false,
"groupIds": [],
"boundElements": null,
"link": null,
"locked": false,
"containerId": null,
"originalText": "Hello World",
"autoResize": true,
"lineHeight": 1.25
}
Arrow Element
{
"type": "arrow",
"id": "arrow-1",
"x": 300,
"y": 150,
"width": 100,
"height": 0,
"points": [[0, 0], [100, 0]],
"startArrowhead": null,
"endArrowhead": "arrow",
"startBinding": null,
"endBinding": null,
"angle": 0,
"strokeColor": "#1e1e1e",
"backgroundColor": "transparent",
"fillStyle": "solid",
"strokeWidth": 2,
"strokeStyle": "solid",
"roughness": 1,
"opacity": 100,
"seed": 9012,
"version": 1,
"versionNonce": 9012,
"isDeleted": false,
"groupIds": [],
"boundElements": null,
"link": null,
"locked": false
}
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 248 lines · 51 tokens per session scan A 178ae99011f7
excalidraw is a skill published in the GitHub repository aleksbuss/orchestra (2 stars, last pushed 18d ago), licensed MIT. It adds 51 tokens to every session and 2,005 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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