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 magazine-postergit 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/magazine-poster)<a href="https://agentmods.dev/skills/nexu-io/open-design/magazine-poster"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/magazine-poster/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/magazine-poster"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/magazine-poster.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 | $0.00093 | $0.00925 |
| Opus 5 | $0.00046 | $0.00463 |
| Sonnet 5 | $0.00019 | $0.00185 |
| Haiku 4.5 | $0.00009 | $0.00093 |
Grade A, and why
magazine-poster 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
3 near-identical copies found in the catalogue:
- magazine-poster — 100% identical, 0 lines differ
- magazine-poster — 98% identical, 1 lines differ
- magazine-poster — 98% identical, 1 lines differ
How it starts
The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Magazine Poster Skill
Produce a single-page editorial poster — looks like a tear-out from a Sunday paper. Long-form, deliberate, type-driven.
Workflow
- Read the active DESIGN.md (injected above). Pick the heaviest serif token in the DS for the headline, the body serif for the columns, and a typewriter / mono token for the section eyebrows and annotations.
- Pick the topic from the brief. Write a real, opinionated headline — one with a struck-through word ("a designer", "the template hunt") and an italic accent on a key noun ("first draft", "mood", "specifics").
- Layout, in order:
- Top rule — thin black hairline + a dateline ("01 · A · YOUR LAB" left, "DD · MMM · YYYY" right). Light typewriter font.
- Top eyebrow — a single mono tag like "POSTED TODAY".
- Headline — 2–3 lines, oversized serif. One word struck through
with
text-decoration: line-through; text-decoration-thickness: 2px. One word italic, in accent color. - Deck — a 1–2 sentence subhead in italic serif at ~60% size of
the headline, with a dash separator and a
— what workscallout fragment in accent. - Accent rule — short horizontal accent-colored bar (~80px).
- Body grid — six numbered cells in a 2×3 (or 3×2) grid. Each cell:
- eyebrow (
01 · SHIP FAST) in mono, accent color. - bold serif sub-headline.
- 2–3 sentence body in body serif.
- one annotated callout — a quoted "use this prompt" line on a tinted background block, set in mono.
- eyebrow (
- Footer band — rule above, three cells: handle / role / date, with a small "PRO TIP" plate on the left containing one closing line.
- Write a single HTML document:
<!doctype html>through</html>, CSS inline.- Background uses a creamy paper tint (
#f3eee2or DS canvas) plus a subtle paper noise (radial-gradientdots at low opacity). - 2-column body grid via CSS Grid; min-width 1100px page.
data-od-idon header, headline, deck, each cell, footer.
- Self-check:
- Type hierarchy is unmistakable — headline owns the page.
- Strikethrough + italic accent both appear, exactly once each.
- Body reads like real opinion, not lorem ipsum.
- Looks intentional at 1280–1440px wide.
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 · 90 lines · 93 tokens per session scan A 3aec85e228ca
magazine-poster is a skill published in the GitHub repository nexu-io/open-design (95,309 stars, last pushed today), licensed Apache-2.0. It adds 93 tokens to every session and 925 once invoked, about $0.0005 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
deck-guizang-editorial
A slide-deck template combining electronic-magazine layouts with an e-ink, printed-paper look. It offers five fixed color palettes and ten reusable page layouts for storytelling and editorial content.
frame-data-chart-nyt
A design template for turning CSV data, JSON, or a written finding into a New York Times-style chart frame for video or social media.
frame-macos-notification
A template for realistic macOS Big Sur-style notification banners, with an app icon, title, message, and optional action button.
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-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-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.