PowerPoint Deck Builder

What it does

When your agent uses it

• Creating a new PowerPoint deck from scratch with pptxgenjs
• Reading or extracting text from an existing .pptx file
• Choosing a deliberate color palette for a presentation instead of defaults

Example prompts

• “Build a 10-slide investor pitch deck with pptxgenjs in a navy and gray palette.”
• “Extract the bullet points from this existing quarterly review deck.”
• “Add a table slide showing our Q3 numbers to the deck I'm building.”

Requirements

• Node.js with pptxgenjs for creating decks
• Python with python-pptx for reading decks

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Pick a color palette informed by the topic, not a random default. One dominant color (used for accents, headers, key numbers) plus one or…
2. 2Vary layout across slides — don't reuse the same "title + bullet list" template for all of them. A title slide, a two-column comparison…
3. 3Avoid dense walls of text. A slide is a visual aid, not a document — 5-7 words per bullet, 3-5 bullets per slide is a reasonable ceiling…
4. 4Set explicit font sizes for hierarchy — title text meaningfully larger (28-40pt) than body text (16-20pt); don't rely on template defaults…
5. 5Before finishing, run through this checklist against your generated code: Does every slide have a clear single takeaway? Is there a…

What it can do on your machine

Read from SKILL.md and the folder at commit a883af6. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

PowerPoint Deck Builder loads about 1.6k tokens when it runs. Until then it costs about 110 tokens; SKILL.md has 620 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~110

When it runs · the whole SKILL.md, loaded when a task matches

~1.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from pipeshub-ai/pipeshub-ai at commit a883af6, republished under its Apache-2.0 licence (© pipeshub-ai). 620 words, ~1,581 tokens.

name

pptx

description

Use this skill whenever the user asks for a PowerPoint presentation, a .pptx file, or slides for a talk/pitch/report — creating a new deck from scratch, editing an existing .pptx, or reading/summarizing an existing deck's content. Covers slide layout, color/typography choices, and a content-quality checklist for professional-looking output. Does not cover rendering slides to images for visual QA (see the 'Not supported' section).

import PptxGenJS from "pptxgenjs";

async function main() {
  const pptx = new PptxGenJS();
  pptx.defineLayout({ name: "WIDE", width: 13.33, height: 7.5 });
  pptx.layout = "WIDE";

  // Title slide — distinct from content slides.
  const title = pptx.addSlide();
  title.background = { color: "1B2A4A" }; // deliberate palette, not a default
  title.addText("Bug Bash — Last 2 Months", {
    x: 0.8, y: 2.6, w: 11.7, h: 1.2, fontSize: 40, bold: true, color: "FFFFFF",
  });
  title.addText("Leadership summary", { x: 0.8, y: 3.9, w: 11.7, h: 0.6, fontSize: 18, color: "9DB2D0" });

  // Content slide with header accent + bullets.
  const slide = pptx.addSlide();
  slide.addShape("rect", { x: 0, y: 0, w: 13.33, h: 0.9, fill: { color: "1B2A4A" } });
  slide.addText("Key findings", { x: 0.5, y: 0.12, w: 9, h: 0.66, fontSize: 24, bold: true, color: "FFFFFF" });
  slide.addText([
    { text: "12 sessions held across 9 feature areas", options: { bullet: true } },
    { text: "38 bugs filed, 31 resolved", options: { bullet: true } },
  ], { x: 0.7, y: 1.3, w: 11.9, h: 4.5, fontSize: 18, color: "222222" });

  await pptx.writeFile({ fileName: "deck.pptx" });
}

main();

© pipeshub-ai, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in backend/python/app/agents/agent_loop/skills/builtin_packs/pptx of pipeshub-ai/pipeshub-ai.

Open the folder on GitHubat commit a883af6