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 audio-jinglegit 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/audio-jingle)<a href="https://agentmods.dev/skills/nexu-io/open-design/audio-jingle"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/audio-jingle/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/audio-jingle"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/audio-jingle.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 | $0.00078 | $0.01181 |
| Opus 5 | $0.00039 | $0.00590 |
| Sonnet 5 | $0.00016 | $0.00236 |
| Haiku 4.5 | $0.00008 | $0.00118 |
Grade A, and why
audio-jingle 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 11d 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
4 near-identical copies found in the catalogue:
- audio-jingle — 94% identical, 6 lines differ
- audio-jingle — 94% identical, 6 lines differ
- audio-jingle — 94% identical, 6 lines differ
- audio-jingle — 94% identical, 6 lines differ
How it starts
The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Audio Jingle Skill
Three sub-modes. The active project's audioKind decides which one
runs:
audioKind |
Models we route to | Plan focus |
|---|---|---|
music |
Suno V5 (default), Udio, Lyria 2 | genre + tempo + instrumentation |
speech |
MiniMax TTS (default), Fish, ElevenLabs V3 | script + voice + pacing |
sfx |
ElevenLabs SFX (default), AudioCraft | texture + impact + duration |
Resource map
audio-jingle/
├── SKILL.md
└── example.html
Workflow
Step 0 — Read the project metadata
audioKind, audioModel, audioDuration (seconds), and (for speech)
voice. Branch by known values and use them verbatim. Missing metadata is not
an instruction to ask: infer a safe default when possible, and emit a
clarifying form only when the missing answer would materially change the
requested output or prevent generation.
Important: voice is provider-specific. For minimax-tts, --voice
must be a valid MiniMax voice_id (for example male-qn-qingse), not
a natural-language description. If you only have a prose voice brief
("warm female narrator", "neutral Mandarin"), keep that in your plan
but omit --voice so the daemon's default voice id applies, or ask the
user to choose a specific id.
Step 1 — Plan
Music
- Genre + reference artists (1-2)
- Tempo (BPM) + key
- Instrumentation (3-5 instruments max)
- Vocals: yes / no / hummed / choir
- Mood arc (intro → chorus → outro)
Speech
- Script (final, not draft — TTS runs verbatim)
- Voice target + pacing
For MiniMax this means a real
voice_id, not prose in--voice - Pronunciation hints for proper nouns / acronyms
SFX
- Texture (impact / whoosh / ambience / foley)
- Duration + envelope (sharp attack vs. gentle swell)
- Layering note (single hit vs. stacked)
State the plan in 2-3 sentences before dispatching.
Step 2 — Compose the prompt
Use the format the upstream model prefers. Bind audioDuration to the
API parameter directly; never put "make it 30 seconds" in prose.
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.
- 11d ago First seen · 135 lines · 78 tokens per session scan A 87b872cf5b5d
audio-jingle is a skill published in the GitHub repository nexu-io/open-design (95,309 stars, last pushed today), licensed Apache-2.0. It adds 78 tokens to every session and 1,181 once invoked, about $0.0004 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 2026-08-30.
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-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.