A toolkit for working with Microsoft PowerPoint presentations, including reading, extracting text, and creating slide decks. PowerPoint is software for making presentations.

Use it to list or extract slide text, inspect presentation files, and create themed PowerPoint decks from structured content.

It provides a defined way to inspect presentation content and build slides with consistent structure and styling. It also describes the file and library requirements for these tasks.

pptx — Skill for Claude Code and Codex by vibeinging: A toolkit for working with Microsoft PowerPoint presentations, including…

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.

agentmods

npx agentmods add skills/vibeinging/yiyi/pptx

Any agent

npx skills add vibeinging/YiYi --skill pptx

Clone the repo

git clone --depth 1 https://github.com/vibeinging/YiYi

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/vibeinging/yiyi/pptx.svg)](https://agentmods.dev/skills/vibeinging/yiyi/pptx)

Your own site

<a href="https://agentmods.dev/skills/vibeinging/yiyi/pptx"><img src="https://agentmods.dev/badge/skills/vibeinging/yiyi/pptx.svg" alt="Measured on agentmods" height="20"></a>

Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,442 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found 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	$0.00028	$0.02442
Opus 5	$0.00014	$0.01221
Sonnet 5	$0.00006	$0.00488
Haiku 4.5	$0.00003	$0.00244

Measured 5d ago against content hash c56964d9a7ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pptx scanned grade A with 0 findings 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 5d ago.

The scan reads SKILL.md. This mod also ships 17 executable files (scripts/__init__.py, scripts/add_slide.py, scripts/clean.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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

app/src-tauri/skills/pptx/SKILL.md · 262 lines

How it starts

The opening of the file, as written. The whole thing — 262 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PowerPoint Processing

Prerequisites

Before running any script in this skill, install the Python dependency:

pip_install(packages=["python-pptx"])

Call the pip_install tool (not shell). packages is an array of strings (see the tool's schema). It's idempotent — safe to call even if already installed.

Reading & Extracting Text

PPTX files are ZIP archives containing XML. Extract content with shell tools:

# List all slides
unzip -l presentation.pptx | grep slide

# Extract all text from all slides
unzip -p presentation.pptx ppt/slides/slide*.xml | sed 's/<[^>]*>//g'

# Extract specific slide
unzip -p presentation.pptx ppt/slides/slide3.xml | sed 's/<[^>]*>//g'

Or use Python for structured extraction:

from pptx import Presentation
prs = Presentation("presentation.pptx")
for i, slide in enumerate(prs.slides):
    print(f"--- Slide {i+1} ---")
    for shape in slide.shapes:
        if shape.has_text_frame:
            print(shape.text)

Creating Professional Presentations

Use the create_pptx.py script to generate polished, themed slide decks.

Step 1: Build a JSON structure file

Create a JSON file describing the presentation. Include rich content — detailed bullet points, not one-word items.

{
  "title": "Presentation Title",
  "subtitle": "Descriptive subtitle",
  "author": "Author Name",
  "date": "2024-01-15",
  "theme": "dark",
  "slides": [
    { "type": "title", "title": "Main Title", "subtitle": "Subtitle" },
    { "type": "section", "title": "Section Name" },
    { "type": "content", "title": "Slide Title", "body": ["Point 1", "Point 2"] },
    ...
  ]
}

Step 2: Run the script

python3 scripts/create_pptx.py structure.json output.pptx

Available Themes

Theme	Style
`dark`	Dark navy background, blue/cyan accents — modern tech feel
`light`	White background, navy/blue accents — clean and professional
`corporate`	White background, navy/red accents — formal business style

Read the full file on GitHub · 262 lines

Files

What ships with it

59 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.

5d ago First seen · 262 lines · 28 tokens per session scan A c56964d9a7ef

Subscribe to this mod's changes

pptx is a skill published in the GitHub repository vibeinging/YiYi (51 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 28 tokens to every session and 2,442 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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