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Agent skill

PPTX Builder for Windows

by MegaSuperKitty in MegaSuperKitty/WeClaw

Builds PowerPoint decks on Windows from a structured slide spec using python-pptx, with an optional HTML-to-PDF-to-image path for complex layouts.

MITAuto-check passedDocuments & Office

Install PPTX Builder for Windows

skills CLI
$ npx skills add MegaSuperKitty/WeClaw --skill pptx-auto-windows -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install MegaSuperKitty/WeClaw pptx-auto-windows --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/MegaSuperKitty/WeClaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/pptx-auto-windows .claude/skills/pptx-auto-windows && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
pptx-auto-windows
GitHub stars
370
Token cost
~650 tokens
SKILL.md length
281 words
Files
6 (incl. scripts, references)
Skills in repo
3
Repo updated
First seen
Licence
MIT

At a glance

Builds PowerPoint decks on Windows from a structured slide spec using python-pptx, with an optional HTML-to-PDF-to-image path for complex layouts.

  • Works in 2 steps: Create a spec (see… → Run
  • Building a PowerPoint deck from a structured outline on Windows
  • SKILL.md covers Overview, Workflow, Quick Start (Path A) and Optional HTML -> PDF -> PPTX…, plus 2 more sections
  • Runs Python scripts from its folder; calls python

What it does

This skill creates .pptx decks on Windows with Python-only tooling, defaulting to python-pptx and a structured slide spec rather than a visual editor. It first collects the outline, desired layout types such as title, bullets, image or two-column, a theme preference and whether to reuse an existing template, any image or logo assets, the target aspect ratio, and whether an HTML-first workflow is actually required.

The default path drafts a JSON or YAML slide spec from the outline, confirms its structure, then runs a bundled script that builds the deck directly, optionally reusing theme layouts from an existing .pptx template and defaulting to widescreen. An optional second path renders HTML to PDF with weasyprint when that renderer is installed, converts the PDF's pages to images with a tool the user already has such as Poppler or ImageMagick, then inserts those images as full-bleed slides through the same spec-building script - used only when the user explicitly wants HTML-first output and accepts the extra renderer dependency.

The HTML-to-PDF script fails with a clear install hint if weasyprint is missing rather than silently falling back, and a separate reference file lists the minimal dependencies needed for each path.

When your agent uses it

  • Building a PowerPoint deck from a structured outline on Windows
  • Reusing an existing PPTX template's theme for a new deck
  • Converting HTML slides to PDF and embedding them in a deck

Example prompts

  • “Build a widescreen PPTX from this outline using python-pptx.”
  • “Reuse our existing template's theme for this new deck.”
  • “Render these HTML slides to PDF and embed them as images in a PPTX.”

Requirements

  • Python with python-pptx
  • weasyprint (for the HTML-to-PDF path)

Workflow steps

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

  1. Create a spec (see references/slide_spec.md).
  2. Run

What it can do on your machine

Read from SKILL.md and the folder at commit de8bbbd. 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

    Ships 2 files in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python

    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

PPTX Builder for Windows loads about 650 tokens when it runs, and up to ~1k if it reads all its reference files. Until then it costs about 84 tokens; SKILL.md has 281 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~84
When it runs · the whole SKILL.md, loaded when a task matches
~650
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1k

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

Auto-check passed

The automated check found no risky patterns in SKILL.md.

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); the scripts in this folder are not scanned.

SKILL.md

The full file from MegaSuperKitty/WeClaw at commit de8bbbd, republished under its MIT licence (© MegaSuperKitty). 281 words, ~650 tokens.

Download SKILL.mdSave it as .claude/skills/pptx-auto-windows/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.
name
pptx-auto-windows
description
Generate PPTX decks on Windows using bash and Python. Use when the user asks to auto-create slides, build a .pptx from a structured outline/spec, or convert HTML (optionally to PDF) before embedding into slides. Covers python-pptx workflows, template/theme reuse, and lightweight HTML-to-PDF rendering when available.

Pptx Auto Windows

Overview

Create .pptx decks on Windows with Python-only tooling, defaulting to python-pptx and a structured slide spec. Optionally render HTML to PDF first, then embed as full-bleed images if a renderer is available.

Workflow

  1. Collect inputs Ask for:
  • Slide outline and desired layout types (title, bullets, image, two-column)
  • Theme preference and whether a template .pptx should be used
  • Assets (images, logos) and target aspect ratio (16:9 or 4:3)
  • Whether an HTML-first workflow is required
  1. Choose the build path
  • Path A (default): Build directly with python-pptx using a slide spec.
  • Path B (optional): Generate HTML, render to PDF (if weasyprint is installed), then place each rendered page as a full-bleed image in PPTX. Use only if the user explicitly wants HTML-first output and accepts the renderer dependency.

  1. Generate slide spec Draft a JSON/YAML spec from the outline, confirm structure, then run scripts/pptx_from_spec.py.

  2. Build the deck Run the script, inspect the output, and iterate on layout or assets.

Quick Start (Path A)

  1. Create a spec (see references/slide_spec.md).
  2. Run:
bash
python scripts/pptx_from_spec.py --spec specs/demo.json --out output/demo.pptx --widescreen

Optional HTML -> PDF -> PPTX (Path B)

  1. Render HTML to PDF:
bash
python scripts/html_to_pdf.py --html slides/index.html --out build/slides.pdf
  1. Convert PDF pages to images using a tool the user already has (Poppler, ImageMagick, etc.).
  2. Insert images into PPTX as full-bleed slides using scripts/pptx_from_spec.py with type: image slides.

Scripts

  • scripts/pptx_from_spec.py:

    • Build a PPTX from a JSON/YAML spec.
    • Supports title, bullets, image, and two_col slide types.
    • Optional --template to reuse theme layouts from an existing .pptx.

  • scripts/html_to_pdf.py:

    • Render HTML to PDF with weasyprint if installed.
    • Fails with a clear install hint if the renderer is missing.

References

  • references/slide_spec.md: Spec format, examples, and layout notes.
  • references/dependencies.md: Minimal dependency guidance for python-pptx and optional HTML-to-PDF rendering.

© MegaSuperKitty, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 5 other files (scripts, references) in skills/pptx-auto-windows of MegaSuperKitty/WeClaw.

  • SKILL.md
  • agents/openai.yaml
  • references/dependencies.md
  • references/slide_spec.md
  • scripts/html_to_pdf.py
  • scripts/pptx_from_spec.py

Open the folder on GitHubat commit de8bbbd

Compare with similar skills

PPTX Builder for Windows next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

PPTX Builder for Windows compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
PPTX Builder for Windows this skillMegaSuperKitty/WeClaw370—~650Automated safety check: PassMIT
Open Kimi Pptjinwyp/open-ppt-skill1612 repos~5.1kAutomated safety check: PassMIT
Ambiguity Reportlawve-ai/awesome-legal-skills847—~4.6kAutomated safety check: PassApache-2.0
Python PPTX Generatorsickn33/agentic-awesome-skills47k2 repos~1.1kAutomated safety check: PassMIT
Skywork Pptaiskillstore/marketplace433—~1.9kAutomated safety check: PassNone
PPT Masterhugohe3/ppt-master59k1 repos~2.5kAutomated safety check: PassMIT

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Works with

Categories

Questions about PPTX Builder for Windows

What does PPTX Builder for Windows do?

Builds PowerPoint decks on Windows from a structured slide spec using python-pptx, with an optional HTML-to-PDF-to-image path for complex layouts. pptx decks on Windows with Python-only tooling, defaulting to python-pptx and a structured slide spec rather than a visual editor. It first collects the outline, desired layout types such as title, bullets, image or two-column, a theme preference and whether to reuse an existing template, any image or logo assets, the target aspect ratio, and whether an HTML-first workflow is actually required.

When should I use PPTX Builder for Windows?

PPTX Builder for Windows fits situations like: building a PowerPoint deck from a structured outline on Windows; reusing an existing PPTX template's theme for a new deck; converting HTML slides to PDF and embedding them in a deck.

How do I install PPTX Builder for Windows in Claude Code?

Run `npx skills add MegaSuperKitty/WeClaw --skill pptx-auto-windows -a claude-code`. Or copy the skill folder (skills/pptx-auto-windows in MegaSuperKitty/WeClaw) into .claude/skills/pptx-auto-windows in your project. Claude Code loads it when a task matches its description.

How do I install PPTX Builder for Windows in Codex?

Run `npx skills add MegaSuperKitty/WeClaw --skill pptx-auto-windows -a codex`. Or copy the skill folder (skills/pptx-auto-windows in MegaSuperKitty/WeClaw) into .agents/skills/pptx-auto-windows in your project. Codex loads it when a task matches its description.

Can I use PPTX Builder for Windows in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add MegaSuperKitty/WeClaw --skill pptx-auto-windows -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pptx-auto-windows, .gemini/skills/pptx-auto-windows, .github/skills/pptx-auto-windows and .opencode/skills/pptx-auto-windows in your project.

What does PPTX Builder for Windows need to run?

Going by SKILL.md and its folder, PPTX Builder for Windows needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python with python-pptx; weasyprint (for the HTML-to-PDF path).

Does PPTX Builder for Windows access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is PPTX Builder for Windows safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does PPTX Builder for Windows use?

PPTX Builder for Windows is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does PPTX Builder for Windows use?

About 650 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 350 tokens, read only when the agent opens those files.

What are the alternatives to PPTX Builder for Windows?

Skills that share tags, products or a category with PPTX Builder for Windows: Open Kimi Ppt (jinwyp/open-ppt-skill, 161 stars), Ambiguity Report (lawve-ai/awesome-legal-skills, 847 stars), Python PPTX Generator (sickn33/agentic-awesome-skills, 47k stars) and Skywork Ppt (aiskillstore/marketplace, 433 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains PPTX Builder for Windows?

MegaSuperKitty (a GitHub user) maintains it in MegaSuperKitty/WeClaw, which has 370 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on May 8, 2026.

Source: MegaSuperKitty/WeClaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.