pptx-author

pptx-author is a skill for Claude Code, Codex from nobodyohm-web/Thot. It costs 16 tokens per session (1,582 once invoked), scanned A, a copy of pptx-author, MIT.

A PowerPoint deck builder that creates presentation files with python-pptx, a Python library for editing PowerPoint documents.

In plain words
What is it for?
Use it to create pitch decks, investment-committee presentations, earnings notes, and other .pptx files.
Why use it?
It gives each slide a clear takeaway and keeps figures traceable to their source workbook or cell.

Skill for Claude CodeCodex

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/nobodyohm-web/thot/pptx-author
Any agent
npx skills add nobodyohm-web/Thot --skill pptx-author
Clone the repo
git clone --depth 1 https://github.com/nobodyohm-web/Thot

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.

agentmods badge for pptx-author

README.md
[![agentmods](https://agentmods.dev/badge/skills/nobodyohm-web/thot/pptx-author.svg)](https://agentmods.dev/skills/nobodyohm-web/thot/pptx-author)
Your own site
<a href="https://agentmods.dev/skills/nobodyohm-web/thot/pptx-author"><img src="https://agentmods.dev/badge/skills/nobodyohm-web/thot/pptx-author.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,582 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% 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.

ModelPer sessionOnce invoked
Fable 5 $0.00016 $0.01582
Opus 5 $0.00008 $0.00791
Sonnet 5 $0.00003 $0.00316
Haiku 4.5 $0.00002 $0.00158

Measured 4d ago against content hash 800c8ab3e98d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pptx-author 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 4d ago.

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

100% identical to pptx-author — 0 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.

hermes/optional-skills/finance/pptx-author/SKILL.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pptx-author

Produce a .pptx file on disk using python-pptx. Use when you need to deliver a deck as a file artifact, not drive a live PowerPoint session.

Adapted from Anthropic's pptx-author and pitch-deck skills in anthropics/financial-services. The MCP / Office-JS branches of the originals are dropped — this assumes headless Python.

For the broader, already-shipped PowerPoint authoring skill (slides, speaker notes, embeds, media), see the built-in powerpoint skill. This skill is a lighter-weight pattern tuned for model-backed decks (pitch decks, IC memos, earnings notes) where every number must trace to a source workbook.

Output contract

  • Write to ./out/<name>.pptx. Create ./out/ if it does not exist.
  • Return the relative path in your final message.

Setup

pip install "python-pptx>=0.6"

Core conventions

One idea per slide

Title states the takeaway; body supports it. A slide titled "Q3 Revenue" is weak; "Revenue growth accelerated to 14% Y/Y in Q3" is strong.

Every number traces to the model

If a figure on a slide came from ./out/model.xlsx, footnote the sheet and cell.

Revenue: $1,250M  (Source: model.xlsx, Inputs!C3)

Never transcribe numbers from memory or from a summary — open the workbook, read the named range, and bind the deck value to it programmatically when you can.

Use the firm template when one is mounted

If ./templates/firm-template.pptx exists, load it so the deck inherits branded colors, fonts, and master layouts.

from pptx import Presentation
from pathlib import Path

template = Path("./templates/firm-template.pptx")
prs = Presentation(str(template)) if template.exists() else Presentation()

Charts: PNG-from-model beats native pptx charts

When fidelity matters (the model's chart styling must match the deck exactly), render the chart to PNG from the source workbook and embed the image. Native pptx.chart charts are fragile and often don't match firm conventions.

Read the full file on GitHub · 174 lines

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.

  1. 4d ago First seen · 174 lines · 16 tokens per session scan A 800c8ab3e98d

Subscribe to this mod's changes

pptx-author is a skill published in the GitHub repository nobodyohm-web/Thot (0 stars, last pushed 10d ago), licensed MIT. It adds 16 tokens to every session and 1,582 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to pptx-author, differing in 0 lines, and is treated as a copy.