A toolset for creating, editing, and analyzing PowerPoint presentation files, which use the .pptx format.

Use it to make or inspect presentations, modify existing slides, apply layouts, add notes or comments, and extract slide text.

It provides workflows for changing presentation text, layouts, comments, speaker notes, and other slide content.

pptx — Skill for Claude Code and Codex by Bbeierle12

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add Bbeierle12/Skill-MCP-Claude --skill pptx

Clone the repo

git clone --depth 1 https://github.com/Bbeierle12/Skill-MCP-Claude

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bbeierle12/skill-mcp-claude/pptx/github.svg)](https://agentmods.dev/skills/bbeierle12/skill-mcp-claude/pptx)

Your own site

<a href="https://agentmods.dev/skills/bbeierle12/skill-mcp-claude/pptx"><img src="https://agentmods.dev/badge/skills/bbeierle12/skill-mcp-claude/pptx/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bbeierle12/skill-mcp-claude/pptx"><img src="https://agentmods.dev/badge/skills/bbeierle12/skill-mcp-claude/pptx.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 5,229 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin 92% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00062	$0.05229
Opus 5	$0.00031	$0.02615
Sonnet 5	$0.00012	$0.01046
Haiku 4.5	$0.00006	$0.00523

Measured 8d ago against content hash e4876f6f9c79, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade B, and why

pptx scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

The scan reads SKILL.md. This mod also ships 12 executable files (ooxml/scripts/pack.py, ooxml/scripts/unpack.py, ooxml/scripts/validate.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- Linux: `sudo apt-get install libreoffice`

Origin

This is a copy

92% identical to pptx — 36 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/pptx/SKILL.md · 477 lines

How it starts

The opening of the file, as written. The whole thing — 477 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PPTX creation, editing, and analysis

Overview

Create, edit, or analyze the contents of .pptx files when requested. A .pptx file is essentially a ZIP archive containing XML files and other resources. Different tools and workflows are available for different tasks.

CRITICAL: Read All Documentation First

Before starting any presentation task, read ALL relevant documentation files completely to understand the full workflow:

For creating new presentations: Read html2pptx.md and css.md in their entirety
For editing existing presentations: Read ooxml.md in its entirety
For template-based creation: Read the relevant sections of this file plus css.md

NEVER set any range limits when reading these files. Understanding the complete workflow, constraints, and best practices before starting is essential for producing high-quality presentations. Partial knowledge leads to errors, inconsistent styling, and visual defects that require rework.

Reading and analyzing content

Text extraction

To read just the text content of a presentation, convert the document to markdown:

# Convert document to markdown
python -m markitdown path-to-file.pptx

Raw XML access

Use raw XML access for: comments, speaker notes, slide layouts, animations, design elements, and complex formatting. To access these features, unpack a presentation and read its raw XML contents.

Unpacking a file

python ooxml/scripts/unpack.py <office_file> <output_dir>

Note: The unpack.py script is located at skills/public/pptx/ooxml/scripts/unpack.py relative to the project root. If the script doesn't exist at this path, use find . -name "unpack.py" to locate it.

Key file structures

ppt/presentation.xml - Main presentation metadata and slide references
ppt/slides/slide{N}.xml - Individual slide contents (slide1.xml, slide2.xml, etc.)
ppt/notesSlides/notesSlide{N}.xml - Speaker notes for each slide
ppt/comments/modernComment_*.xml - Comments for specific slides
ppt/slideLayouts/ - Layout templates for slides
ppt/slideMasters/ - Master slide templates
ppt/theme/ - Theme and styling information
ppt/media/ - Images and other media files

Read the full file on GitHub · 477 lines

Files

What ships with it

57 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

8d ago First seen · 477 lines · 62 tokens per session scan B e4876f6f9c79

Subscribe to this mod's changes

pptx is a skill published in the GitHub repository Bbeierle12/Skill-MCP-Claude (8 stars, last pushed yesterday), licensed MIT. It adds 62 tokens to every session and 5,229 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). It is 92% identical to pptx, differing in 36 lines, and is treated as a copy.

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