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 fs-creative-voltagegit 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/fs-creative-voltage)<a href="https://agentmods.dev/skills/nexu-io/open-design/fs-creative-voltage"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/fs-creative-voltage/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/fs-creative-voltage"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/fs-creative-voltage.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 | $0.00049 | $0.02779 |
| Opus 5 | $0.00024 | $0.01389 |
| Sonnet 5 | $0.00010 | $0.00556 |
| Haiku 4.5 | $0.00005 | $0.00278 |
Grade A, and why
fs-creative-voltage 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 5d 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 — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Creative Voltage (fs-creative-voltage)
A locked single-theme deck plugin derived from the Creative Voltage preset (section 3 of STYLE_PRESETS.md) in the MIT-licensed zarazhangrui/frontend-slides. Vibe: bold, creative, energetic, retro-modern — a retro poster shop wired to a power grid.
Start from example.html in this plugin folder. It is the proven seed: copy its stage CSS, slide shell chrome, signature-device CSS, and the entire SlidePresentation controller script verbatim, then replace only the slide content. Do not rewrite the stage system, the navigation script, or the design tokens. Do not introduce any colors or fonts outside this spec.
Locked design tokens (:root — reproduce exactly)
:root {
--stage-bg: #10101f; /* letterbox behind the stage */
--slide-bg: #1a1a2e; /* default slide background */
--bg-primary: #0066ff; /* electric blue panel */
--bg-primary-deep: #0052cc; /* blue gradient stop */
--bg-dark: #1a1a2e; /* deep navy panel */
--bg-dark-2: #23234a; /* lifted navy card */
--accent-neon: #d4ff00; /* neon yellow badge/highlight */
--accent-neon-soft: rgba(212, 255, 0, 0.14);
--text-light: #ffffff;
--text-dim: rgba(255, 255, 255, 0.64);
--text-faint: rgba(255, 255, 255, 0.34);
--text-on-neon: #1a1a2e; /* navy text on neon yellow */
--line: rgba(255, 255, 255, 0.18);
--line-blue: rgba(255, 255, 255, 0.28);
--font-display: 'Syne', sans-serif; /* 700/800, uppercase headlines */
--font-mono: 'Space Mono', monospace; /* 400/700, body + labels + chrome */
--font-script: 'Yellowtail', cursive; /* script flourishes only */
--title-size: 138px;
--h2-size: 88px;
--subtitle-size: 32px;
--body-size: 27px;
--label-size: 20px;
--slide-pad: 96px;
--ease-volt: cubic-bezier(0.16, 1, 0.3, 1); /* the one signature easing */
--duration-normal: 0.7s;
}
What ships with it
3 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.
- 5d ago First seen · 154 lines · 49 tokens per session scan A e50828410c2b
fs-creative-voltage is a skill published in the GitHub repository nexu-io/open-design (95,021 stars, last pushed today), licensed Apache-2.0. It adds 49 tokens to every session and 2,779 once invoked, about $0.0002 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
fs-creative-voltage
Open Design's seed pitch: the open, local alternative to closed AI design — why now, the wedge, and the ask. Built as a decision-grade fundraising pitch deck for pre-seed & seed VCs.
ib-pitch-book
Open Design's investor pitch book: market map, moat, unit economics, and the ask — analyst-grade and diligence-ready. Built as a decision-grade fundraising pitch deck for growth-equity investors.
html-ppt-pitch-deck
Open Design's demo-day pitch: hook, traction, moat, and the raise — built to make a partner sit up by page three. Built as a decision-grade fundraising pitch deck for accelerator partners, angels.
html-ppt-zhangzara-bold-poster
Open Design's Series A growth story: the traction curve, the expansion motion, and why it's venture-scale. Built as a decision-grade fundraising pitch deck for Series A partners.
deck-pitch
A fixed ten-page presentation structure for raising money from investors, using a white design with a blue-purple gradient and business metrics.
finance-report
A template for a single-page quarterly finance report, with company results, charts, a profit-and-loss summary, key points, and an outlook.