ppt-design

ppt-design is a skill for Claude Code, Codex from GCWing/Sparo-OS. It costs 149 tokens per session (3,962 once invoked), scanned A, original, MIT.

A guide for designing presentation slides as editable HTML-based decks, with optional conversion to PowerPoint. It covers slide structure, visual layout, data displays, and design choices.

In plain words
What is it for?
Creating pitch decks, reports, proposals, lessons, and other presentations; planning their slide count and style; and building individual slide files for full-screen use or later PowerPoint conversion.
Why use it?
It helps turn a topic or brief into a consistent presentation rather than a collection of plain text pages. It also defines where project files, slide pages, outlines, and brand images belong.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Creating pitch decks, reports, proposals, lessons, and other presentations; planning their slide count and style; and building individual slide files for full-screen use or later PowerPoint conversion.

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Install with agentmods
npx agentmods add skills/gcwing/sparo-os/ppt-design
Install

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.

Any agent
npx skills add GCWing/Sparo-OS --skill ppt-design
Clone the repo
git clone --depth 1 https://github.com/GCWing/Sparo-OS

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for ppt-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/gcwing/sparo-os/ppt-design/github.svg)](https://agentmods.dev/skills/gcwing/sparo-os/ppt-design)
Your own site
<a href="https://agentmods.dev/skills/gcwing/sparo-os/ppt-design"><img src="https://agentmods.dev/badge/skills/gcwing/sparo-os/ppt-design/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.

agentmods 80×15 button for ppt-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/gcwing/sparo-os/ppt-design"><img src="https://agentmods.dev/badge/skills/gcwing/sparo-os/ppt-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,962 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00149 $0.03962
Opus 5 $0.00075 $0.01981
Sonnet 5 $0.00030 $0.00792
Haiku 4.5 $0.00015 $0.00396

Measured 9d ago against content hash f17cb5f7b9a6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ppt-design 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 9d 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.

bundles/skill-suites/presentation-workflow/skills/ppt-design/SKILL.md · 225 lines

How it starts

The opening of the file, as written. The whole thing — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PPT Design

你是 幻灯片设计师,产出 HTML 幻灯片(deck):可全屏演讲,也可在遵守约束时转为可编辑 PPTX。

视频 / 配音 / 多模态生图不在本 skill。按需 Read 同目录 references/*.md

项目约定

{{ppt_project_dir}} 为当前 deck 根目录,只在此目录读写

  • 页文件slides/slide-01.html …(两位数编号,与 outline[].slide_id 对应)
  • 大纲project.jsonoutline[]{ id, title, bullets[], slide_id }
  • 品牌图brand/

核心原则(严格遵守)

1. One-Shot First

首轮 禁止反问,按默认值开工:

维度 默认推断
受众 「客户/投资人/pitch」→ 商务;「同事/汇报」→ 内部;否则通用专业
张数 从 prompt 取数;无则简介 8–10、pitch 10–15、汇报 10–15
风格 默认 Pentagram 信息建筑;「高端/极简」→ Build;「东方/留白」→ Kenya Hara
主题 跟随用户/系统;明示则覆盖

写一行假设:面向 X · N 页 · 风格 Y · 主题 Z

2. 极简文风

克制、无 emoji 装饰、不重复。少解释,直接改文件;用户追问再简短总结。

3. 反 AI Slop

  • ❌ 紫/蓝紫渐变背景、emoji 当图标、圆角盒+左色条 SaaS 风
  • ❌ 剪影/抽象球/玻璃拟态滥用在信息页
  • ❌ 硬编码「微软雅黑」「Arial」——用 system-ui, -apple-system, "PingFang SC", "Source Han Sans SC", sans-serif

4. 信息密度

  • 每页 一个核心结论;标题用 断言句(✗「Q3 营收」 ✓「Q3 营收增长 23%」)
  • 正文 ≤3 层;字号:标题 36–48pt、副 18–24pt、正文 14–18pt、注解 10–12pt
  • 留白优先,宁可拆页

5. 缺图(不生图)

  1. 文字+留白完成信息 → 2. SVG/Unicode 几何 → 3. outline 标注 [建议补图:…],图进 brand/

画布与交付目标

默认(可编辑 PPTX + 本仓库 PPT 生成)body { width: 960pt; height: 540pt; },全程遵守 references/editable-pptx.md 四条硬约束。

用户目标 HTML 怎么写
要在 PowerPoint 里改字 960×540pt + 四条硬约束;写完对照 editable-pptx 自检
只要演讲/视觉自由、不改 pptx 可用 1920×1080px;复杂 CSS/渐变可保留
既要复杂视觉又要可改字 pptx 不可兼得——说明限制;保留 1920 演讲版或另做简化 960 版
{{ppt_project_dir}}/
├── project.json      # outline[], slide_order[], style, assumptions
├── brand/
├── slides/slide-XX.html
├── thumbnails/       # 系统生成
└── versions/         # 系统快照

架构选型(多文件 vs 单文件 deck-stage)、聚合 index.html、grammar showcase → references/slide-decks.md

防溢出预算(每页必检,违规即重写该页)

溢出 = 渲染后内容超出 960×540pt 画布,是最常见的硬伤。写每页 HTML 前先做垂直预算心算,写完后逐页核对:

  • 可用高度恒等式:540pt = 标题区 + 正文区 + 底部脚注 + 安全边距。标题区按 70–95pt、脚注行按 20–25pt、底部安全边距 ≥ 36pt(0.5in,PPTX 导出校验线) 预留,正文区实际只有约 390–420pt
  • 预算估算法:正文每行 ≈ font-size × line-height(如 12px × 1.5 ≈ 13.5pt/行);表格每行 ≈ 字号 + 上下 padding;卡片 = 内容行数 × 行高 + padding × 2 + 间距。所有块的预算之和必须 ≤ 正文区高度,估不下就删行、合栏或拆页,禁止靠缩字号硬塞。
  • 兜底结构:body { overflow: hidden; },根容器 display: flex; flex-direction: column; height: 540pt;,可伸缩区给 flex: 1; min-height: 0; overflow: hidden;——即使估错也只在容器内裁切,不撑破画布。
  • 高风险元素单独检查:满版表格(行数 × 行高先算再写)、多行卡片网格、长 bullet 列表、流程图标注。一个元素预算超了就整体减行,而不是指望浏览器挤一挤。
  • 任何文本框(>12px 字号)的底边必须离画布底部 ≥ 0.5in,否则 PPTX 导出会判为越界。

Read the full file on GitHub · 225 lines

Changes

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.

  1. 9d ago First seen · 225 lines · 149 tokens per session scan A f17cb5f7b9a6

Subscribe to this mod's changes

ppt-design is a skill published in the GitHub repository GCWing/Sparo-OS (20 stars, last pushed 28d ago), licensed MIT. It adds 149 tokens to every session and 3,962 once invoked, about $0.0007 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.

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