PPTX Generation Skill

Domain: Presentation Generation
Purpose: Programmatic PowerPoint creation via PptxGenJS
Expertise: Data-driven slides, Markdown conversion, Alex brand templates

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Capabilities

Capability	Description
Markdown → PPTX	Convert .md files to branded presentations
Data-Driven Slides	Generate charts/tables from JSON data
Template System	Alex brand Slide Masters (title, content, section, chart)
Multi-Format Export	File output or base64 for web delivery

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Activation Triggers

• "create presentation", "generate slides", "make pptx"
• "convert markdown to powerpoint", "md to pptx"
• "data visualization slides", "chart presentation"
• "alex branded deck", "presentation template"

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Slide Types

Type	Use Case	Data Shape
title	Opening slide with main title + subtitle	{ title, subtitle?, notes? }
content	Bullet list slide	{ title, bullets[], notes? }
section	Section divider	{ title, subtitle? }
chart	Data visualization	{ chartType, series[], title? }
table	Tabular data	{ headers[], rows[][] }
image	Image slide	{ path|base64, caption? }
twoColumn	Side-by-side content	{ left: {title, bullets}, right: {title, bullets} }

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Chart Types

• bar — Category comparison
• line — Trend over time
• pie — Part-of-whole (use ≤6 segments)
• doughnut — Pie variant with center hole
• area — Volume over time
• scatter — Correlation analysis

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Alex Brand Colors

Name	Fill	Text	Border
Blue	ddf4ff	0550ae	80ccff
Green	d3f5db	1a7f37	6fdd8b
Purple	d8b9ff	6639ba	bf8aff
Gold	fff8c5	9a6700	d4a72c
Gray	eaeef2	24292f	afb8c1

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Example: Markdown Input

# Quarterly Review

## Executive Summary

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# Q4 2024 Results

## Performance Overview

- Revenue up 23% YoY
- Customer acquisition: 1,200 new accounts
- NPS improved from 45 to 62

> Speaker notes: Highlight the NPS improvement as key win

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## Next Quarter [section]

Focus areas for Q1 2025

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# Strategic Priorities

- Expand enterprise segment
- Launch self-serve tier
- Hire 15 engineers

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Example: Programmatic API

import { generateAndSavePresentation, SlideContent } from './pptxGenerator';

const slides: SlideContent[] = [
    { type: 'title', title: 'Q4 Review', subtitle: 'Performance & Strategy' },
    { type: 'content', title: 'Highlights', bullets: ['Revenue +23%', 'NPS 62'] },
    { type: 'chart', title: 'Revenue Trend', data: {
        chartType: 'line',
        series: [{ name: 'Revenue', labels: ['Q1','Q2','Q3','Q4'], values: [100,120,115,146] }]
    }}
];

await generateAndSavePresentation(slides, { title: 'Q4 Review' }, 'review.pptx');

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CLI Usage

# From markdown
npx ts-node .github/muscles/pptxgen-cli.ts --input slides.md --output deck.pptx

# Quick content
npx ts-node .github/muscles/pptxgen-cli.ts --content "Welcome to Alex|Point 1|Point 2" -o quick.pptx

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Integration Points

Integration	Description
Chat command	/pptx <topic> to generate slides from topic
Memory export	Convert episodic memories to slides
Skill output	Any skill can request PPTX output
Data connectors	Azure SQL / Power BI → charts

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Constraints

• Offline-only (no cloud dependencies)
• 16:9 default layout (4:3, 16:10 available)
• Max recommended: 50 slides per deck
• Images: local path, URL, or base64