seikaikyo Sentry Presentation Builder
Create interactive, data-driven presentation slides using React + Vite + Recharts, styled with the Sentry design system and built as a single distributable HTML file.
Step 1: Gather Requirements
Ask the user:
- What is the presentation topic?
- How many slides (typically 5-8)?
- What data/charts are needed? (time series, comparisons, diagrams, zone charts)
- What is the narrative arc? (problem → solution, before → after, technical deep-dive)
Data Assessment (CRITICAL)
Before designing any slides, assess whether the source content contains real quantitative data (numbers, percentages, measurements, time series, costs, metrics). Only create Recharts visualizations for slides where real data exists. Do NOT fabricate, estimate, or invent data to fill charts.
- Has real data → use a Recharts chart (bar, area, line, etc.)
- Has no data → use text-based layouts: cards, tables, bullet columns, diagrams, or quote blocks. Do NOT create a chart with made-up numbers.
If the source content is purely qualitative (narrative, opinions, strategy, process descriptions), the presentation should use zero charts. Recharts and Charts.jsx should only be included in the project if at least one slide has real data to visualize.
Step 2: Scaffold the Project
Create the project structure:
<project-name>/
├── index.html
├── package.json
├── vite.config.js
└── src/
├── main.jsx
├── App.jsx
├── App.css
└── Charts.jsx
index.html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link href="https://fonts.googleapis.com/css2?family=Rubik:wght@300;400;500;600;700&display=swap" rel="stylesheet" />
<link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap" rel="stylesheet" />
<title>TITLE</title>
</head>
<body>
<div id="root"></div>
<script type="module" src="/src/main.jsx"></script>
</body>
</html>
package.json
{
"name": "PROJECT_NAME",
"private": true,
"type": "module",
"scripts": { "dev": "vite", "build": "vite build", "preview": "vite preview" },
"dependencies": { "react": "^18.3.1", "react-dom": "^18.3.1", "recharts": "^2.15.3" },
"devDependencies": { "@vitejs/plugin-react": "^4.3.4", "vite": "^6.0.0", "vite-plugin-singlefile": "^2.3.0" }
}
vite.config.js
import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
import { viteSingleFile } from 'vite-plugin-singlefile'
export default defineConfig({ plugins: [react(), viteSingleFile()] })
main.jsx
import React from 'react'
import ReactDOM from 'react-dom/client'
import App from './App'
import './App.css'
ReactDOM.createRoot(document.getElementById('root')).render(<App />)
Step 3: Build the Slide System
Read ${CLAUDE_SKILL_ROOT}/references/design-system.md for the complete Sentry color palette, typography, CSS variables, layout utilities, and animation system.
App.jsx Structure
Define slides as an array of functions returning JSX:
const SLIDES = [
() => ( /* Slide 0: Title */ ),
() => ( /* Slide 1: Context */ ),
// ...
];
Each slide function returns a <div className="slide-content"> with:
- An
<h2>heading - Optional subtitle paragraph
- Main content (charts, cards, diagrams, tables)
- Animation classes:
.anim,.d1,.d2,.d3for staggered fade-in
Do NOT add category tag pills/badges above headings (e.g., "BACKGROUND", "EXPERIMENTS"). They look generic and add no value. Let the heading speak for itself.
Navigation
Implement keyboard navigation (ArrowRight/Space = next, ArrowLeft = prev) and a bottom nav overlay with prev/next buttons, dot indicators, and slide number. The nav has no border or background — it floats transparently. A small low-contrast Sentry glyph watermark sits fixed in the top-left corner of every slide.
function App() {
const [cur, setCur] = useState(0);
const go = useCallback((d) => setCur(c => Math.max(0, Math.min(SLIDES.length - 1, c + d))), []);
useEffect(() => {
const h = (e) => {
if (e.target.tagName === 'INPUT') return;
if (e.key === 'ArrowRight' || e.key === ' ') { e.preventDefault(); go(1); }
if (e.key === 'ArrowLeft') { e.preventDefault(); go(-1); }
};
window.addEventListener('keydown', h);
return () => window.removeEventListener('keydown', h);
}, [go]);
return (
<>
{cur > 0 && <div className="glyph-watermark"><SentryGlyph size={50} /><span className="watermark-title">TITLE</span></div>}
<div className="progress" style={{ width: `${((cur + 1) / SLIDES.length) * 100}%` }} />
{SLIDES.map((S, i) => (
<div key={i} className={`slide ${i === cur ? 'active' : ''}`}>
<div className={`slide-content${i === cur ? ' anim' : ''}`}>
<S />
</div>
</div>
))}
<Nav cur={cur} total={SLIDES.length} go={go} setCur={setCur} />
</>
);
}
Step 4: Create Charts (Only When Data Exists)
IMPORTANT: Only create charts for slides backed by real, concrete data from the source content. If a slide's content is qualitative (strategies, learnings, process descriptions, opinions), use text-based layouts instead (cards, tables, bullet lists, columns). Never invent numbers, fabricate percentages, or generate synthetic data to populate a chart. If you are unsure whether data is real or inferred, do NOT create a chart.
If NO slides require charts, skip this step entirely — do not create Charts.jsx or import Recharts.
When real data IS available, read ${CLAUDE_SKILL_ROOT}/references/chart-patterns.md for Recharts component patterns including axis configuration, color constants, chart types, and data generation techniques.
Put all chart components in Charts.jsx. Key patterns:
- Use
ResponsiveContainerwith explicit height - Wrap in
.chart-wrapdiv with max-width 920px - Use
useMemofor data generation - Color rule: Use the Tableau-inspired categorical palette (
CAT[]) for distinguishing data series and groups. Only use semantic colors (SEM_GREEN,SEM_RED,SEM_AMBER) when the color itself carries meaning (good/bad, success/failure, warning). - Common charts:
ComposedChartwith stackedArea/Line,BarChart, custom SVG diagrams - Every data point in a chart must come from the source content. Do not interpolate, extrapolate, or round numbers to make charts look better.
Step 5: Style with Sentry Design System
Apply the complete CSS from the design system reference. Key elements:
- Font: Rubik from Google Fonts
- Colors: CSS variables for UI chrome (
--purple,--dark,--muted). Semantic CSS variables (--semantic-green,--semantic-red,--semantic-amber) only where color conveys meaning. Categorical palette (CAT[]) for all other data visualization. - Slides: Absolute positioned, opacity transitions
- Animations:
fadeUpkeyframe with staggered delays - Layout:
.colsflex rows,.cardsgrid,.chart-wrapcontainers - Tags:
.tag-purple,.tag-red,.tag-green,.tag-amberfor slide labels - Logo: Read the official SVG from
${CLAUDE_SKILL_ROOT}/references/sentry-logo.svg(full wordmark) orsentry-glyph.svg(glyph only). Do NOT hardcode an approximation — always use the exact SVG paths from these files.
Step 6: Common Slide Patterns
Title Slide
Logo (from ${CLAUDE_SKILL_ROOT}/references/sentry-logo.svg or sentry-glyph.svg) + h1 + subtitle + author/date info.
Problem/Context Slide
Tag + heading + 2-column card grid with icon headers.
Data Comparison Slide
Tag + heading + side-by-side charts or before/after comparison table.
Technical Deep-Dive Slide
Tag + heading + full-width chart + annotation bullets below.
Summary/Decision Slide
Tag + heading + 3-column layout with category headers and bullet lists.
Step 7: Iterate and Refine
After initial scaffolding:
- Run
npm install && npm run devto start the dev server - Iterate on chart data models and visual design
- Adjust animations, colors, and layout spacing
- Build final output:
npm run buildproduces a single HTML file indist/
Output Expectations
A working React + Vite project that:
- Renders as a keyboard-navigable slide deck
- Uses Sentry branding (colors, fonts, icons)
- Contains Recharts visualizations only for slides with real quantitative data from the source content — no fabricated data
- Omits
Charts.jsxand the Recharts dependency entirely if no slides have real data - Builds to a single distributable HTML file
- Has smooth fade-in animations on slide transitions