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 social-carouselgit 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/social-carousel)<a href="https://agentmods.dev/skills/nexu-io/open-design/social-carousel"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/social-carousel/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/social-carousel"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/social-carousel.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 | $0.00113 | $0.01009 |
| Opus 5 | $0.00056 | $0.00504 |
| Sonnet 5 | $0.00023 | $0.00202 |
| Haiku 4.5 | $0.00011 | $0.00101 |
Grade A, and why
social-carousel 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- social-carousel — 100% identical, 0 lines differ
- social-carousel — 97% identical, 1 lines differ
How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Social Carousel Skill
Produce a 3-panel social carousel on a single dark stage. Each panel is a 1080×1080 cinematic still — connected as a series, but each readable on its own.
Workflow
- Read the active DESIGN.md (injected above). Pick the loudest serif token for the headline lockups and a mono token for stamps / counters.
- Pick the theme + 3 captions from the brief. The captions must read as one sentence when stacked: ("onwards." → "to the next one." → "looking ahead." or "input." → "iterate." → "ship.").
- Stage — full-bleed dark page. Top header strip:
- Left: serif italic display "Three posts. One beat."
- Just below the title: a one-line description in muted mono ("1080×1080 · cinematic video loops · minimal type. Drop into Instagram, LinkedIn, or X — each post stands on its own or runs as a three-part series.").
- Right: small mono badge "SERIES · 01 → 03".
- Cards — 3 squares in a horizontal row (wraps to stack on narrow
viewports). Each card is
aspect-ratio: 1 / 1with rounded 12px corners and a subtle 1px border, plus a soft drop shadow.- Background: a layered gradient that suggests a cinematic photo — for
example, panel 1 = warm dawn meadow (stacked greens with a cyan sky
wash); panel 2 = forest dusk (warm oranges fading into deep teals);
panel 3 = pink-mountain ridge (rosy peaks against a dim violet sky).
Use
radial-gradient+linear-gradientonly — no images. - Top-left chip: brand wordmark in serif italic ("Jerrod Lew") with a small accent dot.
- Top-left below chip: micro mono index "AI · 01 / 03" (and 02, 03).
- Bottom-left: the headline lockup in white serif display, italic accent on one word.
- Bottom-right corner: a
1× LOOPmono stamp inside a thin border. - Bottom strip caption: small caps mono describing the imagined frame ("Man, walking forward — close.", "Woman, stepping into frame.", "Woman, overlooking the city.").
- Background: a layered gradient that suggests a cinematic photo — for
example, panel 1 = warm dawn meadow (stacked greens with a cyan sky
wash); panel 2 = forest dusk (warm oranges fading into deep teals);
panel 3 = pink-mountain ridge (rosy peaks against a dim violet sky).
Use
- Write a single HTML document:
<!doctype html>through</html>, CSS inline.- Cards are sized via
width: clamp(280px, 30vw, 380px)so 3 fit comfortably across most desktops and stack at < 1100px. data-od-idon stage, each card, each headline.
- Self-check:
- The three headlines together form one sentence and feel cinematic.
- Mono is used only for the wordmark index, the loop stamp, and the bottom captions. The headlines stay serif.
- Each panel's color story is distinct — no two share a dominant hue.
What ships with it
1 file 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.
- 7d ago First seen · 92 lines · 113 tokens per session scan A b2a0b27c1dbf
social-carousel is a skill published in the GitHub repository nexu-io/open-design (95,309 stars, last pushed today), licensed Apache-2.0. It adds 113 tokens to every session and 1,009 once invoked, about $0.0006 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
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frame-macos-notification
A template for realistic macOS Big Sur-style notification banners, with an app icon, title, message, and optional action button.
social-reddit-card
A realistic Reddit post card with a community name, author details, title, content, vote controls, comment count, awards, and sharing actions. Reddit is a discussion platform organized into topic-based communities called subreddits.
social-spotify-card
A Spotify-style now-playing card that shows cover art, a title, artist or subtitle, playback progress, and music controls. It can be sized for video overlays or a website hero section.
social-x-post-card
A realistic X post card that displays a profile, handle, post text, optional quoted content or image area, and engagement figures such as likes, reposts, replies, and views. X is the social platform formerly known as Twitter.