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.

<! PM Skills https://github.com/product on purpose/pm skills Apache 2.0 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: 1. 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. 2. 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 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 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 1. Read the content brief Understand topic, audience, length, specific requirements 2. Plan the deck Select slide types using the decision logic table. Assign dark/light variants for visual rhythm (alternate to avoid monotony). 3. Write the JSON deck specification Fill content slots, respecting character limits from references/slide types.md 4. Run the generation script node scripts/generate deck.js deck spec.json 5. Optionally export PDF node scripts/export pdf.mjs deck spec.json output.pdf 6. 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

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