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 html-ppt-taste-brutalistgit 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/html-ppt-taste-brutalist)<a href="https://agentmods.dev/skills/nexu-io/open-design/html-ppt-taste-brutalist"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/html-ppt-taste-brutalist/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/html-ppt-taste-brutalist"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/html-ppt-taste-brutalist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 14 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 | $0.01223 |
| Opus 5.5 | $0.00031 | $0.00489 |
| Sonnet 5.5 | $0.00016 | $0.00245 |
| Haiku 4.5 | $0.00008 | $0.00122 |
Grade A, and why
html-ppt-taste-brutalist 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 1mo 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:
- html-ppt-taste-brutalist — 100% identical, 0 lines differ
- html-ppt-taste-brutalist — 100% identical, 0 lines differ
- html-ppt-taste-brutalist — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.
HTML PPT — Tactical Telemetry / CRT Terminal
A 16:9 deck for project debriefs, security reviews, infra incident write-ups, ops walkthroughs, and any "we are not selling, we are reporting" presentation. Reads like a declassified mission packet, not a pitch deck.
This skill commits to ONE substrate (dark CRT) — never mix with the light Swiss-print mode in the same artifact.
Source
Distilled from Leonxlnx/taste-skill — skills/brutalist-skill/SKILL.md §2.2 (Tactical Telemetry & CRT Terminal). Deck system follows the project's existing html-ppt convention (16:9 slides, vertical-stack fallback when opened directly).
Hard rules
- Substrate: deactivated-CRT charcoal
#0A0A0A/#121212. Never pure black. - Foreground: white phosphor
#EAEAEA. Secondary#9A9A98. - Accent: ONE color — hazard red
#E61919. Used on alerts, classifications, the latest data point. Never as a slide background fill. - Optional: terminal green
#4AF626for ONE specific UI element across the entire deck (e.g. a single status indicator). Omit if it doesn't earn its place. - Type: monospace dominates. JetBrains Mono / IBM Plex Mono for body and meta. Heavy condensed grotesque (Archivo Black / Inter Black) only for slide titles.
- Title scale:
clamp(56px, 7vw, 96px), uppercase, tracking-0.04em, leading0.9. - Geometry:
border-radius: 0. Visible 1px hairlines (#2A2A28on charcoal). Usedisplay: grid; gap: 1pxover a hairline-colored background to render perfect cells. - Scanline overlay: subtle
repeating-linear-gradientat2px / 4pxcycle, opacity ≤0.08, applied as a fixed pointer-events-none layer. - Phosphor noise: optional SVG-grain pseudo-element, opacity ≤
0.06. - Slide chrome: every slide carries top register strip — classification, slide ID, timestamp, coordinates — and a bottom bar with serial number + page.
Banned
border-radiusabove 0.- Drop shadows, gradients, glassmorphism, glow.
- Color other than charcoal, phosphor, hazard red, and at most one terminal-green element.
- Sans-serif body fonts. Monospace is the body.
- Pitch-deck "delight" — emoji, illustration, stock photography, friendly icons.
- Light-mode slides anywhere in the same deck.
- Slide transitions other than instant cuts.
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.
- 1mo ago First seen · 71 lines · 78 tokens per session scan A e3b7e42464ef
html-ppt-taste-brutalist is a skill published in the GitHub repository nexu-io/open-design (103,954 stars, last pushed yesterday), licensed Apache-2.0. It adds 78 tokens to every session and 1,223 once invoked, about $0.0003 per session on Opus 5.5. 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
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A slide-deck template based on Swiss International graphic design: a strict 16-column grid, large clear text, charts, and one fixed bright accent colour. It provides 22 layouts for covers, timelines, comparisons, metrics, and other content.
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-light-leak-cinema
A visual template for a cinematic opening frame or chapter card. It combines warm film light leaks, 35mm-style grain, black letterbox bars, and large serif lettering.
mockup-device-3d
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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.
frame-glitch-title
A design template for a glitch-style title frame in Chinese, intended for a video transition, hero image, or cyberpunk graphic. It describes dark backgrounds, distorted lettering, colored offsets, scan lines, noise, and timecode details.