A set of instructions for working with PowerPoint presentation files, including reading, editing, and creating slide decks.

Use it to extract presentation text, inspect slide layouts, edit existing decks, or create presentations from templates or from scratch.

It gives the coding agent a defined process for handling the text, layout, and internal files inside a .pptx file.

pptx — Skill for Claude Code by adamwstauffer

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 adamwstauffer/shidler --skill pptx

Clone the repo

git clone --depth 1 https://github.com/adamwstauffer/shidler

Made for: Claude Code.

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/adamwstauffer/shidler/pptx.svg)](https://agentmods.dev/skills/adamwstauffer/shidler/pptx)

Your own site

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

Per session 152 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,512 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 78% 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	$0.00152	$0.02512
Opus 5	$0.00076	$0.01256
Sonnet 5	$0.00030	$0.00502
Haiku 4.5	$0.00015	$0.00251

Measured 8d ago against content hash f93335a0dc5d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, 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 8d ago.

The scan reads SKILL.md. This mod also ships 16 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.

Origin

This is a copy

78% identical to pptx — 50 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.

.claude/skills/pptx/SKILL.md · 234 lines

How it starts

The opening of the file, as written. The whole thing — 234 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PPTX Skill

Quick Reference

Task	Guide
Read/analyze content	`python -m markitdown presentation.pptx`
Edit or create from template	Read editing.md
Create from scratch	Read pptxgenjs.md

Reading Content

# Text extraction
python -m markitdown presentation.pptx

# Visual overview
python scripts/thumbnail.py presentation.pptx

# Raw XML
python scripts/office/unpack.py presentation.pptx unpacked/

Editing Workflow

Read editing.md for full details.

Analyze template with thumbnail.py
Unpack → manipulate slides → edit content → clean → pack

Creating from Scratch

Read pptxgenjs.md for full details.

Use when no template or reference presentation is available.

Design Ideas

Don't create boring slides. Plain bullets on a white background won't impress anyone. Consider ideas from this list for each slide.

Before Starting

Pick a bold, content-informed color palette: The palette should feel designed for THIS topic. If swapping your colors into a completely different presentation would still "work," you haven't made specific enough choices.
Dominance over equality: One color should dominate (60-70% visual weight), with 1-2 supporting tones and one sharp accent. Never give all colors equal weight.
Dark/light contrast: Dark backgrounds for title + conclusion slides, light for content ("sandwich" structure). Or commit to dark throughout for a premium feel.
Commit to a visual motif: Pick ONE distinctive element and repeat it — rounded image frames, icons in colored circles, thick single-side borders. Carry it across every slide.

Color Palettes

For UH Mānoa / Shidler College of Business presentations, default to the institutional palette. For other topics, choose colors that match — don't default to generic blue. Use these palettes as inspiration:

Theme	Primary	Secondary	Accent
UH Mānoa (default)	`024731` (UH green)	`B2B2B2` (silver)	`E6F2EF` (green-50)
UH Mānoa Dark	`024731` (UH green)	`0D0D0D` (near-black)	`4DA78F` (green-300)
Midnight Executive	`1E2761` (navy)	`CADCFC` (ice blue)	`FFFFFF` (white)
Forest & Moss	`2C5F2D` (forest)	`97BC62` (moss)	`F5F5F5` (cream)
Coral Energy	`F96167` (coral)	`F9E795` (gold)	`2F3C7E` (navy)
Warm Terracotta	`B85042` (terracotta)	`E7E8D1` (sand)	`A7BEAE` (sage)
Ocean Gradient	`065A82` (deep blue)	`1C7293` (teal)	`21295C` (midnight)
Charcoal Minimal	`36454F` (charcoal)	`F2F2F2` (off-white)	`212121` (black)
Teal Trust	`028090` (teal)	`00A896` (seafoam)	`02C39A` (mint)
Berry & Cream	`6D2E46` (berry)	`A26769` (dusty rose)	`ECE2D0` (cream)
Sage Calm	`84B59F` (sage)	`69A297` (eucalyptus)	`50808E` (slate)
Cherry Bold	`990011` (cherry)	`FCF6F5` (off-white)	`2F3C7E` (navy)

Read the full file on GitHub · 234 lines

Files

What ships with it

58 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 · 234 lines · 152 tokens per session scan A f93335a0dc5d

Subscribe to this mod's changes

pptx is a skill published in the GitHub repository adamwstauffer/shidler (10 stars, last pushed today), licensed MIT. It adds 152 tokens to every session and 2,512 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. It is 78% identical to pptx, differing in 50 lines, and is treated as a copy.

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