OpenDesign is an open-source, local-first desktop app that lets coding agents create prototypes, dashboards, slide decks, images, video, and design systems as exportable files. It is used by people working with agent runtimes such as Claude Code, Codex, Cursor, and DeepSeek Harness. The catalogue add-ons extend the OpenDesign workflow with skills, instructions, commands, and plugins.
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 nexu-io/open-design --skill open-design-homepagegit clone --depth 1 https://github.com/nexu-io/open-designWrote 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/nexu-io/open-design/open-design-homepage)<a href="https://agentmods.dev/skills/nexu-io/open-design/open-design-homepage"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/open-design-homepage/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/nexu-io/open-design/open-design-homepage"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/open-design-homepage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00065 | $0.00601 |
| Opus 5 | $0.00032 | $0.00300 |
| Sonnet 5 | $0.00013 | $0.00120 |
| Haiku 4.5 | $0.00006 | $0.00060 |
Grade A, and why
open-design-homepage 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 7d 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 — 30 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OpenDesign Homepage
A first-party showcase template that mirrors the live open-design.ai homepage, captured as a fully self-contained bundle that renders in the sandboxed preview.
It is here to demonstrate the visual ceiling OpenDesign targets for interactive, WebGL-grade marketing surfaces on the web — not a fill-in-the-blank generator. Treat it as a reference build to study and adapt.
What it is
- Interactive 3D hero — a real-time
OpenDesignscript wordmark rendered with React Three Fiber / Three.js, plus a cursor-reactive parallax layer and a floating sticker collage. - Scroll-driven narrative — the work grid, capabilities copy, and decorative stickers animate as the page scrolls.
- Craft details — custom variable fonts (TikTok Sans, Geist Mono, Departure Mono), a light/dark theme toggle, an optional ambient soundtrack, and a live clock / cursor-coordinate HUD.
How it is built (for reference)
- Stack: Next.js (App Router, Turbopack build) + React Three Fiber + Three.js, exported as a static, self-contained bundle.
- 3D geometry is Draco-compressed (
KHR_draco_mesh_compression) — the hero wordmark drops from ~4.4 MB to ~300 KB with no visible change, decoded at runtime by the bundledDRACOLoader. - Imagery (work thumbnails, stickers) ships as lossless WebP — pixel-identical to the source PNGs at a fraction of the size, so every file stays under the 1 MB repository blob limit and the template needs no external asset host.
- Self-contained & path-portable: all assets load relative to the entry file, so the bundle renders correctly whether served from the site root or a nested preview subpath.
Using it
Open example.html in the preview to explore the live, interactive result. All content is bundled locally — fonts, imagery, and 3D geometry ship in assets/, so there are no CDN scripts or external fonts. The one runtime network request is the Draco decoder, fetched from Google's gstatic CDN on demand (the same pattern the other WebGL examples use for their libraries). To adapt the aesthetic (typography, 3D treatment, sticker collage, scroll motion) into your own build, study the structure here and recreate it with your preferred React Three Fiber / Next.js setup.
What ships with it
59 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.
- assets/_next/static/chunks/1098c2541054fc77.js 903 KB runs code
- assets/_next/static/chunks/1552c7742c37f06d.js 282 B runs code
- assets/_next/static/chunks/1ed7a178f7acd3df.js 484 KB runs code
- assets/_next/static/chunks/56b0d8f9f2c1e441.js 33 KB runs code
- assets/_next/static/chunks/635eb04122aa774f.css 40 KB
- assets/_next/static/chunks/7758f29a8aeb1c60.js 402 KB runs code
- assets/_next/static/chunks/7cc1924554447827.js 48 KB runs code
- assets/_next/static/chunks/83f95f6c165018c5.js 112 KB runs code
- assets/_next/static/chunks/8c2d1abc8462562b.js 197 KB runs code
- assets/_next/static/chunks/8f06fe72571f37b9.js 30 KB runs code
- assets/_next/static/chunks/a6dad97d9634a72d.js 110 KB runs code
- assets/_next/static/chunks/d59f7a97fb1c563f.js 142 KB runs code
- assets/_next/static/chunks/e553ef8ae208a000.js 19 KB runs code
- assets/_next/static/chunks/turbopack-425288158aa66df2.js 10 KB runs code
- assets/apple-icon.png 9.4 KB
- assets/bgm.mp3 686 KB
- assets/fonts/DepartureMono-Regular.otf 83 KB
- assets/fonts/GeistMono[wght].ttf 167 KB
- assets/fonts/TikTokSans.ttf 756 KB
- assets/icon.svg 916 B
- assets/img/m3.png 36 KB
- assets/model/cnt.gltf 535 KB
- assets/model/cursor.glb 39 KB
- assets/model/hello.gltf 292 KB
- assets/sticker_img/s_01.webp 184 KB
- assets/sticker_img/s_02.webp 125 KB
- assets/sticker_img/s_03.webp 184 KB
- assets/sticker_img/s_04.webp 357 KB
- assets/sticker_img/s_05.webp 103 KB
- assets/sticker_img/s_06.webp 193 KB
- assets/sticker_img/s_07.webp 201 KB
- assets/sticker_img/s_08.webp 143 KB
- assets/sticker_img/s_09.webp 79 KB
- assets/sticker_img/s_10.webp 132 KB
- assets/sticker_img/s_11.webp 333 KB
- assets/sticker_img/s_12.webp 229 KB
- assets/work/ali01.webp 243 KB
- assets/work/ali02.webp 243 KB
- assets/work/c4.webp 189 KB
- assets/work/ds01.webp 239 KB
- assets/work/ds02.webp 239 KB
- assets/work/inspire_mono_01.webp 169 KB
- assets/work/inspire_mono_02.webp 169 KB
- assets/work/reunimos01.webp 344 KB
- assets/work/reunimos02.webp 344 KB
- assets/work/s01.webp 268 KB
- assets/work/s02.webp 268 KB
- assets/work/sd01.webp 129 KB
- assets/work/sd02.webp 129 KB
- assets/work/si.webp 435 KB
- assets/work/si02.webp 435 KB
- assets/work/tt01.webp 1012 B
- assets/work/tt02.webp 1.0 KB
- assets/work/vs01.webp 159 KB
- assets/work/vs02.webp 159 KB
- assets/work/wasm01.webp 235 KB
- assets/work/wasm02.webp 235 KB
- example.html 34 KB
- open-design.json 7.3 KB
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.
- 7d ago First seen · 30 lines · 65 tokens per session scan A 64eec9798c08
open-design-homepage is a skill published in the GitHub repository nexu-io/open-design (95,309 stars, last pushed yesterday), licensed Apache-2.0. It adds 65 tokens to every session and 601 once invoked, about $0.0003 per session on Opus 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 2026-09-03.
Other skills, from other repositories
frame-flowchart-sticky
A single-file HTML template for showing a process or system as a whiteboard with coloured sticky notes, curved arrows, and optional mouse interactions.
prototype-web
A clickable, high-fidelity web product prototype with navigation, a hero section, feature cards, steps, social proof, and optional pricing. It is designed to resemble a finished landing page while remaining a prototype.
saas-landing
A single-page SaaS landing page for a software product, with sections such as the hero, features, customer proof, pricing, FAQs, and a call to action. SaaS means software delivered online, usually by subscription.
web-proto-brutalist
A web-page style built around Swiss industrial print design, with oversized numbers, stark grids, black typography, red accents, and ASCII symbols.
web-proto-editorial
A minimalist editorial web style inspired by magazines, with warm colours, serif display type, simple borders, generous empty space, and small motion effects.
web-proto-soft
A web prototype style inspired by Apple's soft product interfaces, using cream or silver surfaces, rounded cards, layered edges, and subtle motion.