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-presenter-mode-revealgit 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-presenter-mode-reveal)<a href="https://agentmods.dev/skills/nexu-io/open-design/html-ppt-presenter-mode-reveal"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/html-ppt-presenter-mode-reveal/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-presenter-mode-reveal"><img src="https://agentmods.dev/badge/skills/nexu-io/open-design/html-ppt-presenter-mode-reveal.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- 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 | $0.00045 | $0.01388 |
| Opus 5 | $0.00023 | $0.00694 |
| Sonnet 5 | $0.00009 | $0.00278 |
| Haiku 4.5 | $0.00005 | $0.00139 |
Grade A, and why
html-ppt-presenter-mode 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.
This is a copy
91% identical to html-ppt-hermes-cyber-terminal — 32 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
HTML PPT · Presenter Mode (演讲者模式)
A focused entry point into the html-ppt master skill that lands the user directly on the presenter-mode-reveal full-deck template.
When this card is picked
The Examples gallery wires "Use this prompt" to the example_prompt above. When you accept that prompt, this card is the right pick if the user wants exactly the visual identity of presenter-mode-reveal (see the upstream full-decks catalog for screenshots and rationale).
How to author the deck
- Read the master skill first. All authoring rules live in
design-templates/html-ppt/SKILL.md— content/audience checklist, token rules, layout reuse, presenter mode, the keyboard runtime, and the "never put presenter-only text on the slide" rule. - Start from the matching template folder:
design-templates/html-ppt/templates/full-decks/presenter-mode-reveal/— copyindex.htmlandstyle.cssinto the project, keep the.tpl-presenter-mode-revealbody class. - Bring the shared runtime with the template. The upstream
index.htmllinks the shared CSS/JS via../../../assets/...because it sits three folders deep insidedesign-templates/html-ppt/templates/full-decks/. Once you copyindex.htmlinto the project, those parent-relative URLs no longer resolve andbase.css,animations.css, andruntime.jswill 404 — meaning the deck never activates and slide navigation is dead. Pick one of these two recipes per project:- Recipe A — copy + rewrite (preferred): copy
design-templates/html-ppt/assets/fonts.css,design-templates/html-ppt/assets/base.css,design-templates/html-ppt/assets/animations/animations.css, anddesign-templates/html-ppt/assets/runtime.jsinto a project-localassets/(withassets/animations/animations.css), then rewrite the four<link>/<script>tags inindex.htmlfrom../../../assets/...to the matching project-local paths (assets/fonts.css,assets/base.css,assets/animations/animations.css,assets/runtime.js). - Recipe B — inline: read the same four files and replace each
<link rel="stylesheet" href="../../../assets/...">with a<style>...</style>containing the file's contents, and the<script src="../../../assets/runtime.js">with a<script>...</script>containingruntime.js. Yields a single self-containedindex.html. Either way, do not ship the upstream../../../assets/...URLs verbatim into a project artifact — they only work in-tree.
- Recipe A — copy + rewrite (preferred): copy
- Pick a theme. Default tokens look fine; if the user wants a different
feel, swap in any of the 36 themes from
design-templates/html-ppt/assets/themes/*.cssvia<link id="theme-link">and letTcycle. - Replace demo content, not classes. The
.tpl-presenter-mode-revealscoped CSS only recognises the structural classes shipped in the template — keep them. - Speaker notes go inside
<aside class="notes">or<div class="notes">— never as visible text on the slide.
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 · 98 lines · 45 tokens per session scan A a5e500646f7b
html-ppt-presenter-mode is a skill published in the GitHub repository nexu-io/open-design (95,309 stars, last pushed yesterday), licensed Apache-2.0. It adds 45 tokens to every session and 1,388 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to html-ppt-hermes-cyber-terminal, differing in 32 lines, and is treated as a copy.
Other skills, from other repositories
html-ppt-presenter-mode
Open Design live demo: from a one-line prompt to runnable design in a single session — the flow, live. Built as a decision-grade AI literacy deck for developers, prospects, community.
ve-terminal-mono
Open Design from the CLI: driving the full design workflow with the od command — scripted, composable, agent-ready. Built as a decision-grade AI literacy deck for developers, power users.
frontend-slides
Open Design as a worked AI-workflow example: how local agents read your files and design on your desktop — concretely. Built as a decision-grade AI literacy deck for teams new to AI, leadership.
html-ppt-tech-sharing
Open Design internals: how the agent stream, sandbox, and artifacts work — an engineering deep-dive talk. Built as a decision-grade AI literacy deck for engineers, dev community.
html-ppt-obsidian-claude-gradient
Open Design's enterprise AI-adoption brief: local-first agents at work, the risk controls, the ROI, and the rollout plan. Built as a decision-grade AI literacy deck for leadership, IT, security.
html-ppt-hermes-cyber-terminal
Open Design + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.