utility-slideshow-creator

Original：🇺🇸 English

Translated

Generates professional presentations from a JSON deck specification using 18 slide types with dark/light variants, content-to-layout decision logic, and calibrated character limits. Ships with a default professional theme and supports custom themes via utility-slideshow-themer.

1installs

Sourceproduct-on-purpose/pm-skills

Added on2026-04-18

NPX Install

npx skill4agent add product-on-purpose/pm-skills utility-slideshow-creator

SKILL.md Content

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Slideshow Creator

Generate professional presentations (.pptx and .pdf) from a JSON deck specification. Zero design decisions at generation time — Claude selects slide types and fills content slots; all visual properties are pre-decided by the theme.

When to Use

Creating slide decks for stakeholder updates, product reviews, team presentations
Generating professional .pptx files from content briefs
Producing consistent presentations without manual formatting
Exporting presentations to PDF for sharing or archiving

When NOT to Use

Creating complex data visualizations (use dedicated charting tools)
Building interactive web presentations (this produces .pptx, not HTML)
Editing existing PowerPoint files (this creates new decks from scratch)

How It Works

Two-phase architecture:

Spec phase (Claude) — Read the content brief, select slide types using decision logic, write a JSON deck specification. Content slots have character limits calibrated to prevent overflow. This is the only phase that costs tokens.
Generation phase (Local script) — Run
```
node scripts/generate-deck.js deck-spec.json
```
to produce .pptx. Optionally run
```
node scripts/export-pdf.mjs deck-spec.json
```
for PDF. Deterministic rendering, zero token cost.

Both outputs come from the same JSON spec, so .pptx and .pdf always match.

18 Slide Types


title_dark
title_light
section
content
bullets
two_col
stat
dual_stat
quote
three_card
four_grid
timeline
process_flow
agenda
highlight
table
icon_rows
closing

#	Type Key	Purpose	Default Variant
1	`title_dark`	Opening slide (bold)	dark only
2	`title_light`	Opening slide (internal/lighter)	light only
3	`section`	Section divider	dark
4	`content`	Paragraph explanation	light
5	`bullets`	3-6 key points	light
6	`two_col`	Side-by-side comparison	light
7	`stat`	Single key metric	light
8	`dual_stat`	Two metrics compared	dark
9	`quote`	Testimonial or pull quote	dark
10	`three_card`	Three parallel concepts	dark
11	`four_grid`	Four concepts in 2x2 grid	dark
12	`timeline`	Dates or milestones (max 6)	light
13	`process_flow`	Sequential workflow (max 5)	light
14	`agenda`	Meeting agenda (max 7)	light
15	`highlight`	Key finding or executive summary	light
16	`table`	Tabular data	light
17	`icon_rows`	Feature list with markers (max 4)	light
18	`closing`	End slide	dark only

Full slot definitions and character limits:

references/slide-types.md

Decision Logic (Quick Reference)

Content Pattern	Use
Opening the deck (bold)	`title_dark`
Opening the deck (internal)	`title_light`
Transitioning between topics	`section`
Paragraph explanation	`content`
List of 3-6 points	`bullets`
Side-by-side comparison	`two_col`
Single key metric	`stat`
Two metrics compared	`dual_stat`
Testimonial or pull quote	`quote`
Three parallel concepts	`three_card`
Four concepts in a grid	`four_grid`
Dates or milestones	`timeline`
Sequential workflow	`process_flow`
Meeting agenda	`agenda`
Key finding or summary	`highlight`
Tabular data	`table`
Feature list with markers	`icon_rows`
Ending the deck	`closing`

Full decision logic with variant strategy:

references/decision-logic.md

JSON Deck Spec Format

json

{
  "title": "Q3 Product Update",
  "author": "Product Team",
  "footerText": "Internal — Q3 Review",
  "slides": [
    { "type": "title_dark", "title": "Q3 Product Update", "subtitle": "October 2026" },
    { "type": "stat", "stat": "94%", "label": "Customer satisfaction score", "accentColor": "secondary" },
    { "type": "bullets", "title": "What Shipped", "bullets": ["Feature A", "Feature B", "Feature C"] },
    { "type": "closing" }
  ]
}

Colors accept theme token names (

"accent"

,

"secondary"

,

"tertiary"

,

"warm"

) or 6-character hex strings (

"2563EB"

).

Full schema and workflow:

references/TEMPLATE.md

and

references/platform-rules.md

Instructions

Read the content brief — Understand topic, audience, length, specific requirements
Plan the deck — Select slide types using the decision logic table. Assign dark/light variants for visual rhythm (alternate to avoid monotony).
Write the JSON deck specification — Fill content slots, respecting character limits from
```
references/slide-types.md
```

Run the generation script —

node scripts/generate-deck.js deck-spec.json

Optionally export PDF —

node scripts/export-pdf.mjs deck-spec.json output.pdf

Report the output — Tell the user where the file(s) are

Output Contract

Planning artifact: JSON deck specification (the file Claude writes)
Final output: .pptx file (+ optional .pdf), generated locally from the spec
Quality gate: All items in the quality checklist pass

Quality Checklist

Every slide has a valid type key (one of the 18 defined types)
All content slots respect character limits from
```
references/slide-types.md
```
Dark/light variants alternate for visual rhythm (no 3+ consecutive same-variant slides)
Deck has a title slide (first) and a closing slide (last)
Section dividers separate distinct topics in decks > 6 slides
Speaker notes included for key slides (stats, highlights, transitions)
JSON is valid (no trailing commas, proper quoting, correct nesting)
Color values are valid theme tokens or 6-character hex strings (no
```
#
```
prefix)

References

File	Purpose
`references/TEMPLATE.md`	JSON deck specification template with field documentation
`references/EXAMPLE.md`	Worked example: Q3 Product Update deck (9 slides)
`references/slide-types.md`	All 18 slide types: content slots, character limits, variants
`references/decision-logic.md`	Content pattern → slide type mapping, variant strategy, deck sizing
`references/platform-rules.md`	pptxgenjs requirements, Google Slides compatibility, output format