powerpoint

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---
name: powerpoint
description: 'PowerPoint slide deck generation and management using python-pptx with YAML-driven content and styling'
license: MIT
compatibility: 'Requires uv, Python 3.11+, PowerShell 7+, and LibreOffice'
metadata:
  authors: "microsoft/hve-core"
  spec_version: "1.0"
  last_updated: "2026-08-09"
---

# PowerPoint Skill

Generates, updates, and manages PowerPoint slide decks using `python-pptx` with YAML-driven content and styling definitions.

## Overview

This skill provides Python scripts that consume YAML configuration files to produce PowerPoint slide decks. Each slide is defined by a `content.yaml` file describing its layout, text, and shapes. A `style.yaml` file defines dimensions, template configuration, layout mappings, metadata, and defaults.

SKILL.md covers technical reference: prerequisites, commands, script architecture, API constraints, and troubleshooting. For conventions and design rules (element positioning, visual quality, color and contrast, contextual styling), follow `pptx.instructions.md`.

## Prerequisites

### PowerShell

The `Invoke-PptxPipeline.ps1` script handles virtual environment creation and dependency installation automatically via `uv sync`. Requires `uv`, Python 3.11+, and PowerShell 7+.

### Installing uv

If `uv` is not installed:

```bash
# macOS / Linux
curl -LsSf https://astral.sh/uv/install.sh | sh

# Windows
powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

# Via pip (fallback)
pip install uv
```

### System Dependencies (Export and Validation)

The Export and Validate actions require LibreOffice for PPTX-to-PDF conversion and optionally `pdftoppm` from poppler for PDF-to-JPG rendering. When `pdftoppm` is not available, PyMuPDF handles the image rendering.

The Validate action's vision-based checks require the GitHub Copilot CLI for model access.

```bash
# macOS
brew install --cask libreoffice
brew install poppler        # optional, provides pdftoppm

# Linux
sudo apt-get install libreoffice poppler-utils

# Windows (winget preferred, choco fallback)
winget install TheDocumentFoundation.LibreOffice
# choco install libreoffice-still      # alternative
# poppler: no winget package; use choco install poppler (optional, provides pdftoppm)
```

### Copilot CLI (Vision Validation)

The `validate_slides.py` script uses the GitHub Copilot SDK to send slide images to vision-capable models. The Copilot CLI must be installed and authenticated:

```bash
# Install Copilot CLI
npm install -g @github/copilot-cli

# Authenticate (uses the same GitHub account as VS Code Copilot)
copilot auth login

# Verify
copilot --version
```

### Required Files

* `style.yaml` — Dimensions, defaults, template configuration, and metadata
* `content.yaml` — Per-slide content definition (text, shapes, images, layout)
* (Optional) `content-extra.py` — Custom Python for complex slide drawings

## Content Directory Structure

All slide content lives under the working directory's `content/` folder:

```text
content/
├── global/
│   ├── style.yaml              # Dimensions, defaults, template config, and theme metadata
│   └── voice-guide.md          # Voice and tone guidelines
├── slide-001/
│   ├── content.yaml            # Slide 1 content and layout
│   └── images/                 # Slide-specific images
│       ├── background.png
│       └── background.yaml     # Image metadata sidecar
├── slide-002/
│   ├── content.yaml            # Slide 2 content and layout
│   ├── content-extra.py        # Custom Python for complex drawings
│   └── images/
│       └── screenshot.png
├── slide-003/
│   ├── content.yaml
│   └── images/
│       ├── diagram.png
│       └── diagram.yaml
└── ...
```

## Global Style Definition (`style.yaml`)

The global `style.yaml` defines dimensions, template configuration, layout mappings, metadata, and defaults. Color and font choices are specified per-element in each slide's `content.yaml` rather than centralized in the style file.

See the [s