pptx-author

# 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 when you can. ### Use the firm template when one is mounted If `./templates/firm-template.pptx` exi...