pptx-author

name	pptx-author
description	Produce a professional .pptx deck on disk with python-pptx — slide conventions, template handling, and delivery contract for research decks and pitch materials.

pptx-author

Use this skill whenever you need to deliver a PowerPoint deck as a file. This plugin runs in Claude Code (no live Office application), so all decks are built with Python/python-pptx.

Output contract

• Write the deck where the caller collects deliverables from — the path the user gave, else the delivery directory this session already establishes (usually present in the working directory, alongside uploaded inputs; look before guessing), else the working directory. Do not assume a fixed name, and confirm the file is there before finishing: a deck written somewhere the caller does not read is the same outcome as no deck.
• Return the file path in your final message.

How to build the deck

Write a short Python script and run it with Bash. Use python-pptx:

from pptx import Presentation
from pptx.util import Inches, Pt

prs = Presentation("./templates/firm-template.pptx")  # if a template is provided
# or: prs = Presentation()

slide = prs.slides.add_slide(prs.slide_layouts[5])    # title-only
slide.shapes.title.text = "Valuation Summary"
# ... add tables / charts / text boxes ...

prs.save(f"{DELIVER}/pitch-<target>.pptx")   # DELIVER = the caller's delivery directory

Conventions

• One idea per slide. Title states the takeaway; body supports it.
• Every number traces to a source. If a figure comes from a model workbook (e.g. <DELIVER>/model.xlsx), footnote the sheet and cell; if it comes from a data source, keep the [n] source marker convention.
• Use the firm template when the user provides one; otherwise default layouts.
• Charts: prefer embedding a PNG rendered from the model over native pptx charts when fidelity matters.
• CJK text: verify Chinese text renders and wraps correctly; pick fonts the target machine will have.
• No external sends. This skill writes a file; it never emails or uploads.