md-slides

The saved excerpt is a snapshot from review. The external source remains the complete and most current version.

---
name: md-slides
description: Converts a markdown deck (slides separated by `---` HR boundaries or by `# ` H1 headings, with optional `<!-- notes: ... -->` presenter notes blocks) into a single-file HTML presentation with arrow-key / space / PgDn / PgUp / Home / End / P / Esc keyboard navigation, presenter mode (split view with current slide + speaker notes + clock + next-slide preview), URL-hash deep linking, and `@media print` page-per-slide for PDF export. Triggers when the markdown-html-orchestrator classifies an input as SLIDES, or when invoked directly via /cs:md-slides. Reuses md-document's markdown parser for slide-body rendering and reads design-system tokens via config_loader.py. Refuses if input has no clear slide boundaries, produces a 1-slide deck, or `--strict-notes` is on with < 50% notes coverage. Use after orchestrator routing.
version: 2.10.3
author: Alireza Rezvani
license: MIT
tags: [markdown, html, slides, deck, presenter-mode, keyboard-nav, print-to-pdf, single-file, design-system]
compatible_tools: [claude-code, codex-cli, cursor, antigravity, opencode, gemini-cli]
---

# md-slides — Markdown deck → single-file HTML presentation

The slide-deck converter. Reads a markdown deck (HR or H1 boundaries, optional presenter notes), emits a single-file HTML presentation that runs in any browser with keyboard navigation, presenter mode, and print-to-PDF.

Three stdlib tools pipeline together:

```
slide_splitter.py  →  presenter_notes_parser.py  →  deck_html_renderer.py
   (md → ordered      (extract <!-- notes:         (slides + design-system
    slides with       --> blocks, attach            tokens → single-file
    titles)           per slide)                    HTML with keyboard nav)
```

## When to invoke

| Symptom | Action |
|---|---|
| `markdown-html-orchestrator` routes input as SLIDES | Invoke this skill |
| User runs `/cs:md-slides <path>.md` directly | Invoke this skill |
| Input has 3+ `---` HR lines OR 5+ H1 headings with short bodies | Invoke this skill |
| Input is a long-form spec | Route to `md-document` instead |
| Input is a code review | Route to `md-review` instead |
| Input has no clear slide boundaries | Refuse, route to `md-document` |
| Input would produce 1 slide | Refuse (it's a poster) |

## Pipeline

```bash
# 1. Split slides on --- or H1 (auto-detect by default)
python3 markdown-html/skills/md-slides/scripts/slide_splitter.py \
    --input <path>.md --output /tmp/slides.json

# 2. Extract <!-- notes: ... --> blocks from each slide
python3 markdown-html/skills/md-slides/scripts/presenter_notes_parser.py \
    --slides /tmp/slides.json --output /tmp/deck.json

# 3. Render single-file HTML deck
python3 markdown-html/skills/md-slides/scripts/deck_html_renderer.py \
    --slides /tmp/deck.json --title "My Talk" --output deck.html
```

## What ships in the HTML

- **All slides as `<section class="slide">`** — one visible at a time, controlled by JS
- **Keyboard nav** — `→` / `Space` / `PgDn` advance; `←` / `PgUp` previous; `Home`/`End` jump; `P` presenter mode; `Esc` exits presenter
- **URL-hash deep linking** — `#3` jumps to slide 3; browser back/forward walks slides; share `deck.html#5` to send someone directly there
- **Progress bar** — 3px at top showing position through the deck
- **Slide counter** — bottom-right ("3 / 12")
- **Presenter mode** (P key) — splits the window: current slide on left (60% width), panel on right with clock + speaker notes + next-slide preview
- **Print stylesheet** — `Cmd+P` produces a PDF with one slide per page
- **`@media (prefers-reduced-motion: reduce)`** honored
- **12 brand CSS custom properties** from design-system; design_style affects layout density
- **Reuses md-document's markdown parser** — slide bodies render with consistent paragraph/list/code/table/callout handling

## Hard rules

1. **Refuses input with no clear slide boundaries.** Auto mode needs ≥ 3 HR lines or ≥ 5 H1 headings. Otherwise exit 6 — route to md-document.
2. **Refuses 1-