claudegoodies
Skill

pptx-author

From NousResearch

Build PowerPoint decks headless with python-pptx. Pairs with excel-author for model-backed decks where every number traces to a workbook cell. Use for pitch decks, IC memos, earnings notes.

Facts

Repository
NousResearch/hermes-agent
Status
Actively maintained
Last commit
Source file
optional-skills/finance/pptx-author/SKILL.md

Source preview

The instructions Claude Code reads when this skill runs.

# 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](https://github.com/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

```bash
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
View full source on GitHub →

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