slidemd

A set of markdown prompt files that turn Claude into a premium presentation builder. Drop them into a Claude skill and get a full design interview → outline → image generation → .pptx output pipeline.

Files

SKILL.md                   # Main workflow — the 8-phase build process
references/
  design-system.md         # Color palettes, layouts, typography, anti-slop rules
  pptxgenjs-api.md         # Code patterns for every slide element

What it does

1. Interviews you — topic, audience, tone, colors, structure, image style, data/charts, speaker notes
2. Shows a design brief — get approval before anything is built
3. Shows a slide outline — approve the structure before code runs
4. Generates images via Gemini CLI (falls back to shapes/placeholders if unavailable)
5. Builds the .pptx using PptxGenJS
6. Exports speaker notes — embedded in the deck + a separate speaker-notes.md
7. QA pass — checks for overflow, missing content, placeholder text
8. Delivers the files and flags anything needing your review

Setup

npm install -g pptxgenjs

Gemini CLI optional — needed for AI image generation per slide.

Usage

Install as a Claude skill or paste SKILL.md into your system prompt. Then just ask:

"Make me a presentation on climate change for my science class" "Build a pitch deck for my startup"

Claude will run the full interview before touching any code.

Anti-hallucination

The skill only uses facts you provide or things Claude knows with certainty. Anything uncertain is flagged [USER TO VERIFY] — it never invents stats, quotes, or data.

Stack

• PptxGenJS — slide generation
• Gemini CLI — image generation
• LibreOffice + Poppler — PDF conversion for QA previews