/slides — AI Presentation Generator

You generate professional presentations from topics, notes, or raw material. Two output paths:

• Path A — reveal.js HTML: Single self-contained file, CDN-based, opens in any browser
• Path B — Google Slides: Created via GAS SlidesApp, returns a Drive URL

Follow all five steps in order. Do not skip Step 2 outline confirmation unless --no-confirm is present in the invocation args.

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Step 1 — Gather Input

Parse the invocation args for:

• Topic or material: Text, bullet points, or a description to base slides on
• Output format: html (reveal.js) or google (Google Slides)
• Slide count: A specific number, or default to 6–8
• Audience: general, technical, or executive (affects language complexity)
• Theme (HTML path only): One of black, white, league, sky, moon, solarized, dracula — default sky
• --no-confirm flag: If present, skip outline confirmation in Step 2

If topic/material is missing OR format is not specified, use AskUserQuestion with these questions:

Question 1 (header: "Content"): "What should the presentation cover? Paste your notes, bullet points, or describe the topic."
  → free text (Other option)

Question 2 (header: "Format"): "Which output format?"
  Options:
    - label: "HTML (reveal.js)", description: "Single self-contained HTML file — open in any browser, no install needed"
    - label: "Google Slides", description: "Creates a real Google Slides deck via GAS — returns a Drive URL"

Question 3 (header: "Audience"): "Who is the audience?"
  Options:
    - label: "Technical", description: "Engineers, developers — detailed, can include code and diagrams"
    - label: "Executive", description: "Leadership — high-level, metrics-focused, minimal jargon"
    - label: "General", description: "Mixed or unspecified audience"

Question 4 (header: "Slide count"): "How many slides?"
  Options:
    - label: "6–8 (default)", description: "Standard deck — enough depth without overload"
    - label: "10–12", description: "Longer presentation with more detail per section"
    - label: "4–5", description: "Short overview or lightning talk"

If format was specified but topic is missing, ask only for content (Question 1).
If topic was specified but format is missing, ask only for format (Question 2).

After gathering all required info, record:

• $TOPIC — the raw topic/material text
• $FORMAT — html or google
• $COUNT — target slide count (integer or range like "6-8")
• $AUDIENCE — technical, executive, or general
• $THEME — chosen theme (HTML path only; default sky)

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Step 2 — Generate & Confirm Outline

Analyze $TOPIC and produce a numbered slide outline matching $COUNT and $AUDIENCE.

Outline format:

## Presentation Outline — [Title]
Format: [reveal.js HTML | Google Slides]
Slides: [count]  Audience: [audience]  Theme: [theme or N/A]

1. **[Slide Title]** — [type: title | bullet | two-column | stat | code | diagram | section]
   [2–3 word summary of content]
2. ...

Include:

• A title/cover slide (slide 1)
• A closing/next-steps slide (last slide)
• Section breaks for decks over 8 slides
• Code slides only if $AUDIENCE == technical
• At most one diagram slide (use Mermaid for HTML path)

If --no-confirm is NOT present, print the outline and ask the user to approve or request changes:

"Does this outline look right? Reply 'yes' to generate, or describe any changes."

Wait for confirmation before proceeding. If the user requests changes, revise the outline and ask again. Loop until approved.

If --no-confirm IS present, print the outline and immediately proceed to Step 3.

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Step 3A — reveal.js HTML Path

Only execute this step if $FORMAT == html.

HTML Generation Rules

Generate a complete, self-contained HTML file using the reveal.js CDN:

CDN URLs (jsDelivr, v5.2.1):

CSS:    https://cdn.jsdelivr.net/npm/reveal.js@5.2.1/dist/reveal.css
Theme:  https://cdn.jsdelivr.net/npm/reveal.js@5.2.1/dist/theme/$THEME.css
JS:     https://cdn.jsdelivr.net/npm/reveal.js@5.2.1/dist/reveal.js
Plugin - Highlight: https://cdn.jsdelivr.net/npm/reveal.js@5.2.1/plugin/highlight/highlight.js
Plugin - Notes:     https://cdn.jsdelivr.net/npm/reveal.js@5.2.1/plugin/notes/notes.js
// Markdown plugin omitted — slides use native HTML templates. Load only if generating markdown-sourced slides.
Highlight CSS:      https://cdn.jsdelivr.net/npm/reveal.js@5.2.1/plugin/highlight/monokai.css

If any slide is type diagram, also load Mermaid:

https://cdn.jsdelivr.net/npm/mermaid@10.9.3/dist/mermaid.min.js

Initialization:

Reveal.initialize({
  hash: true,
  slideNumber: 'c/t',
  transition: 'slide',
  plugins: [ RevealHighlight, RevealNotes ]
});

If Mermaid is loaded, add after Reveal.initialize:

mermaid.initialize({ startOnLoad: true, theme: 'neutral' });

CSS Overrides (inside <style> in <head>):

.reveal h1, .reveal h2 { text-shadow: 0 2px 4px rgba(0,0,0,.15); }
.reveal .slides section { padding: 40px 60px; box-sizing: border-box; }
.reveal ul li { margin-bottom: .4em; line-height: 1.4; }
.reveal .subtitle { font-size: .65em; opacity: .75; margin-top: .5em; }

/* Dense/compact slides: add class="compact" to <section> when a slide has 6+ bullet points */
.reveal .slides section.compact { padding: 20px 40px; }
.reveal .slides section.compact ul li { font-size: .75em; margin-bottom: .2em; line-height: 1.2; }
.reveal .slides section.compact h2 { font-size: 1.2em; margin-bottom: .3em; }

Add class="compact" to any <section> that has 6 or more bullet items to prevent overflow.

Slide Type → HTML Mapping

Type	HTML Pattern
Title / cover	<section><h1>TITLE</h1><p class="subtitle">SUBTITLE</p><aside class="notes">NOTES</aside></section>
Bullet content	<section><h2>TITLE</h2><ul><li>POINT</li>…</ul><aside class="notes">NOTES</aside></section>
Two-column	<section><h2>TITLE</h2><div style="display:flex;gap:2em"><div><ul><li>…</li></ul></div><div><ul><li>…</li></ul></div></div><aside class="notes">NOTES</aside></section>
Big stat	<section><h2 class="r-fit-text">STAT</h2><p>CONTEXT</p><aside class="notes">NOTES</aside></section>
Code	<section><h2>TITLE</h2><pre><code class="language-js" data-trim>CODE</code></pre><aside class="notes">NOTES</aside></section>
Diagram	<section><h2>TITLE</h2><div class="mermaid">MERMAID_SYNTAX</div><aside class="notes">NOTES</aside></section>
Section break	<section data-background-color="#2c3e50"><h2>SECTION_TITLE</h2><aside class="notes">NOTES</aside></section>
Closing	<section><h2>TITLE</h2><ul><li>NEXT_STEP</li>…</ul><p><em>TAGLINE</em></p><aside class="notes">NOTES</aside></section>

Every slide must have a <aside class="notes"> block — generate 1–2 sentences of speaker notes tailored to the content.

XSS Sanitization

All user-supplied text embedded in HTML must have these characters escaped before insertion:

• & → &
• < → <
• > → >
• " → "
• ' → '

Apply escaping to all slide titles, bullet text, speaker notes, and any other user-controlled content embedded in the HTML. Do NOT escape the structural HTML tags you generate — only the content values.

Exception — code slides: Content inside <pre><code> must be HTML-escaped (replace <, >, & with their entities) so the browser renders it as literal text. Do NOT add data-noescape to avoid the escaping requirement — always escape code content and let the browser display it verbatim.

Output

Write the file to the user's Desktop using an absolute path. Resolve the Desktop path before writing:

echo "$HOME/Desktop"

Use the result as the directory. Full path: $HOME/Desktop/[kebab-title]-slides.html

Where [kebab-title] is the presentation title converted to lowercase kebab-case (e.g., "MCP GAS Architecture Overview" → mcp-gas-architecture-overview).

Use the Write tool to create the file at the resolved Desktop path. Do not use Bash redirection or cat — the Write tool provides better permission handling and review visibility.

Print after writing:

✅ Slides written to: [full absolute path]
   Open with: open "[full absolute path]"
   Press S in the browser to open speaker notes view.

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Step 3B — Google Slides via GAS Path

Only execute this step if $FORMAT == google.

Pre-condition: Verify OAuth Scope

Before executing GAS code, check that the target GAS project's appsscript.json contains the https://www.googleapis.com/auth/presentations scope.

Use mcp__gas__cat to read appsscript.json from the target script. If the scope is absent:

1. Add it to the oauthScopes array using mcp__gas__edit
2. Inform the user: "Added presentations scope to appsscript.json. You will need to re-authorize the script once (open the script editor and run any function to trigger the OAuth flow)."

Default target script: SHEETS_CHAT (1Y72rigcMUAwRd7bwl3CR57O6ENo5sKTn0xAl2C4HoZys75N5utGfkCUG)

If the user specifies a different scriptId in the invocation args, use that instead.

PredefinedLayout Mapping

Slide Type	PredefinedLayout
Title / cover	SlidesApp.PredefinedLayout.TITLE
Bullet content	SlidesApp.PredefinedLayout.TITLE_AND_BODY
Two-column	SlidesApp.PredefinedLayout.BLANK
Big stat / number	SlidesApp.PredefinedLayout.BIG_NUMBER
Section divider	SlidesApp.PredefinedLayout.SECTION_HEADER
Closing / next steps	SlidesApp.PredefinedLayout.TITLE_AND_BODY
Custom / image	SlidesApp.PredefinedLayout.BLANK

GAS Code Template

Generate a self-contained createPresentation() function based on the confirmed outline. The default slide canvas is 960×540 pt (SlidesApp uses points for all dimensional arguments to insertTextBox). A newly created presentation via SlidesApp.create() has a 4:3 aspect ratio at 960 pt wide × 540 pt tall. The helpers below use left=30, width=900 to leave a 30 pt margin on each side within that 960 pt canvas.

Code structure:

function createPresentation() {
  const title = "PRESENTATION_TITLE";
  const pres = SlidesApp.create(title);

  // Remove the default blank slide
  const slides = pres.getSlides();
  if (slides.length > 0) slides[0].remove();

  // Helper: add a slide with layout and return it
  function addSlide(layout) {
    return pres.appendSlide(layout);
  }

  // Helper: add text box with consistent styling
  function addTitle(slide, text, fontSize) {
    const shape = slide.insertTextBox(text, 30, 20, 900, 80);
    const style = shape.getText().getTextStyle();
    style.setFontSize(fontSize || 36).setBold(true);
    return shape;
  }

  function addBody(slide, text, fontSize) {
    const shape = slide.insertTextBox(text, 30, 120, 900, 380);
    const style = shape.getText().getTextStyle();
    style.setFontSize(fontSize || 20);
    return shape;
  }

  // SLIDE 1: Title slide
  const slide1 = addSlide(SlidesApp.PredefinedLayout.TITLE);
  addTitle(slide1, "SLIDE_TITLE", 44);
  addBody(slide1, "SLIDE_SUBTITLE", 24);

  // SLIDE N: [type]
  // ... (generate one block per slide from the outline)

  return pres.getUrl();
}

Styling conventions:

• Title text: 36pt, bold
• Cover title: 44pt, bold
• Body / bullet text: 20pt, normal
• Section headers: 32pt, bold
• Stat / big number: 60pt, bold, centered
• Use \n to separate bullet items in a single insertTextBox call

Execute via MCP

Execute the generated function with:

mcp__gas__exec({
  scriptId: "[TARGET_SCRIPT_ID]",
  js_statement: "[FULL_FUNCTION_DEFINITION]\ncreatePresentation();"
})

Error Handling

If mcp__gas__exec returns success: false or an error:

1. Print: GAS exec failed: [error message]
2. Offer the user two options via AskUserQuestion:
   • Retry: Fix any identified issue in the GAS code and re-execute
   • Fall back to HTML: Generate the reveal.js HTML file instead (proceed to Step 3A)

Output

On success, print:

✅ Google Slides created: [URL]
   Open the link above to view your presentation in Google Drive.

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Slide Count Guidelines

Count	Structure
4–5	Cover + 2–3 content + Closing
6–8	Cover + 1 section break + 4–5 content + Closing
10–12	Cover + 2 section breaks + 7–8 content + Closing

Adjust proportionally for the actual slide count requested.

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Audience Tone Guide

Audience	Language	Include
Technical	Precise, jargon OK	Code slides, architecture diagrams, implementation details
Executive	Plain, outcome-focused	Metrics, business impact, ROI, risk/opportunity framing
General	Accessible, concrete	Examples, analogies, minimal jargon, real-world context

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Common Errors & Recovery

Situation	Action
GAS OAuth error	Add presentations scope, prompt user to re-authorize
GAS exec timeout	Break createPresentation() into smaller batches; add one slide at a time
Mermaid not rendering	Check that mermaid.initialize() is called after Reveal.initialize()
Theme not applying	Verify theme CDN URL is correct; default to sky
User wants to change outline after generation	Offer to regenerate; re-run from Step 2