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Create designed, editable PowerPoint .pptx presentations with PptxGenJS.

Skill by the-open-agent

IndexedApache-2.0★ 5,708
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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About

Create designed, editable PowerPoint .pptx presentations with PptxGenJS. Use when the user asks to create, generate, update, or inspect a deck, slide deck, presentation, or .pptx file.

Use cases: presentations

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

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  • codeload.github.com · found in install command

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  • ~/.claude/skills/powerpoint

What's inside

Skill name
powerpoint
Description
Create designed, editable PowerPoint .pptx presentations with PptxGenJS. Use when the user asks to create, generate, update, or inspect a deck, slide deck, presentation, or .pptx file.
License
Apache-2.0
Instructions
87 lines in SKILL.md · view on GitHub

Files (2)

  • SKILL.md
  • pptxgenjs.md · references/

SKILL.md (first lines)

# PowerPoint

Use this skill whenever a PowerPoint deck is involved. For new decks, pass a trusted PptxGenJS build script directly to the `pptx_write` tool. For filling or editing an existing template, call `pptx_template_analyze` first and then `pptx_template_fill` with the exact IDs returned by analysis.

## Workflow

1. Decide the deck outline and choose a visual system: palette, typography, repeated motif, and slide rhythm.
2. Write JavaScript module content that exports `default async function build(pptx, ctx)` or named `build(pptx, ctx)`.
3. In the script, add slides directly with PptxGenJS. Do not generate HTML for this workflow.
4. Call `pptx_write` with `path`, `script`, optional `assets_dir`, and optional `data`.
5. Verify the result with `pptx_read`; for visual QA, convert the PPTX to images if the environment has LibreOffice and Poppler.

## Template Workflow

- Use `pptx_template_analyze` when the user provides a `.pptx` template or wants to preserve existing layouts, charts, images, tables, or SmartArt.
- Build a `template_fill_pptx_plan.v1` plan from the returned slide IDs and object IDs, then call `pptx_template_fill`.
- For SmartArt, use `smartarts[*].smartart_id` and `smartarts[*].nodes[*].node_id` in `smartart_edits`. This edits existing node text only; it does not create, delete, or relayout SmartArt nodes.

## Script Creation

- Put the complete JavaScript module in the `script` argument.
- Do not use `local_file_write` or shell commands to create a temporary `.mjs` file for this workflow.
- If revising a deck, update the `script` content and call `pptx_write` again.

## Tool Contract

```json
{
  "tool": "pptx_write",
  "arguments": {
    "path": "deck.pptx",
    "script": "export default async function build(pptx, ctx) {\\n  pptx.layout = \"LAYOUT_WIDE\";\\n}",
    "assets_dir": "/absolute/path/to/assets",
    "data": {"title": "Quarterly Review"}
  }
}
```

The worker creates the PptxGenJS instance and writes the output file. The script only adds slides and content.

```javascript
export default async function build(pptx, ctx) {
  pptx.layout = "LAYOUT_WIDE";
  pptx.author = "OpenAgent";

  const slide = pptx.addSlide();
  slide.background = { color: "FFFFFF" };
  slide.addText("Title", {
    x: 0.6, y: 0.4, w: 8, h: 0.6,
    fontSize: 36, bold: true, color: "1F2937",
    margin: 0,
  });
  slide.addNotes("speaker notes");
}
```

`ctx` includes:

- `ctx.data`: JSON data passed from the tool call.
- `ctx.assetsDir`: resolved asset directory.
- `ctx.outPath`: final PPTX path.
- `ctx.resolveAsset("image.png")`: absolute path under `assets_dir`.
- `ctx.imageData("image.png")`: base64 image data URL.
- `ctx.iconSvgData("check", "16A34A")`: Font Awesome solid icon as SVG data.

## Design Rules

- Avoid plain white bullet decks. Every slide should have a visual element: shape, image, chart, icon, timeline, stat callout, or diagram.
- Vary layouts across the deck: title, divider, two-column, card grid, process flow, quote/callout, and conclusion.
- Pick topic-specific colors. Use one dominant color, one or two supporting tones, and one accent.
- Use strong hierarchy: titles around 36-44 pt, section labels around 20-24 pt, body text around 14-18 pt.
- Keep at least 0.5 inch margins and consistent gaps around 0.3-0.5 inch.
- Use editable text wherever practical; use images for photos, screenshots, logos, or complex visual backgrounds.
- Add speaker notes when useful; `pptx_read` can surface them later.

## PptxGenJS Reference

For API patterns, chart examples, bullets, image sizing, icons, and common file-corruption pitfalls, load `pptxgenjs.md`.

## Required QA

- Run `pptx_read` on the generated file and check slide order, missing text, typo risk, and notes.
- Inspect generated XML or render slides when visual precision matters.
- Watch for overlap, text overflow, low contrast, cramped spacing, repeated layouts, and leftover placeholder text.
- If a visual issue is found, edit the `.mjs` script and rewrite the PPTX.

From the-open-agent/openagent, Apache-2.0.

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Stars
5,708
Forks
669
Open issues
49
Last commit (this folder)
Jun 18, 2026 (4 months ago)
Last release
Sep 1, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

powerpoint skill. Agent Mart. https://agentmart.dev/skills/the-open-agent-powerpoint (last updated 2026-10-24)