Official agent skill

PowerPoint Decks

by anthropics in anthropics/skills

Creates, edits, reads and validates .pptx and .potx files, using pptxgenjs for new decks and direct XML edits for existing ones, with helper scripts for thumbnails and checks.

OfficialProprietaryAuto-check passedDocuments & Office

Install PowerPoint Decks

skills CLI
$ npx skills add anthropics/skills --skill pptx -a claude-code

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

GitHub CLI
$ gh skill install anthropics/skills pptx --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/anthropics/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/pptx .claude/skills/pptx && 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
GitHub stars
180k
Used in
6 other repos
Token cost
~5.2k tokens
SKILL.md length
2,574 words
Files
61 (incl. scripts)
Skills in repo
16
Repo updated
First seen
Licence
Proprietary

At a glance

Creates, edits, reads and validates .pptx and .potx files, using pptxgenjs for new decks and direct XML edits for existing ones, with helper scripts for thumbnails and checks.

  • Building a pitch deck or presentation from scratch
  • SKILL.md covers Scripts, Creating with pptxgenjs —…, Editing existing decks and… and Design Ideas, plus 3 more sections
  • Runs Python scripts from its folder; calls python, markitdown and npm
  • Editing the text or layout of an existing .pptx

What it does

A .pptx is a ZIP archive of XML, and the skill picks an approach by task. New decks are written as a `pptxgenjs` script; existing decks or template-based builds are unzipped, edited under `ppt/slides/` and zipped again; reading uses `markitdown` for a block per slide, with a labeled thumbnail grid for visual review. Bundled scripts duplicate slides with all the package bookkeeping, delete slides, media and relationships that are no longer referenced, validate schema, relationships, content types, charts and slides, and convert to PDF through a LibreOffice wrapper.

A list of pptxgenjs gotchas covers the mistakes that corrupt or hide content: set the layout before adding slides, since the default canvas is the 16:9 size of 10 by 5.625 inches and coordinates past the edge are written but not visible, write hex colors without `#` and without alpha digits, and use `transparency` for fills and `opacity` for shadows because each is ignored on the other. Template-derived decks should be validated with `--original` so the template's own errors are not blamed on the new deck. The files are under a proprietary licence.

When your agent uses it

  • Building a pitch deck or presentation from scratch
  • Editing the text or layout of an existing .pptx
  • Extracting the text of every slide from a deck
  • Combining or splitting slide files

Example prompts

  • “Create a 10-slide investor deck for our seed round and save it as pitch.pptx.”
  • “Pull the text out of every slide in ./decks/quarterly-review.pptx.”
  • “Replace the logo and the title on slide 3 of the template deck.”
  • “Validate deck.pptx and render it to PDF so I can check the layout.”

Requirements

  • Node.js with `pptxgenjs`, for creating decks
  • Python, for the bundled scripts
  • LibreOffice, for PDF conversion
  • `markitdown`, for reading slide text

What it can do on your machine

Read from SKILL.md and the folder at commit 683bc88. 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 14 files in scripts/ (Python, from the files we listed), which the agent can run.

    Shell commands in SKILL.md call:

    • python
    • markitdown
    • npm
    • python3
    • pdftoppm

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

  • Network

    No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.

    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 Decks loads about 5.2k tokens when it runs. Until then it costs about 184 tokens; SKILL.md has 2,574 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~184
When it runs · the whole SKILL.md, loaded when a task matches
~5.2k

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

Its licence (Proprietary) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,574 words (~5,162 tokens).

“A .pptx is a ZIP archive of XML files. Choose your approach by task:”

— opening of SKILL.md by anthropics, Proprietary
name
pptx
license
Proprietary. LICENSE.txt has complete terms

Read the full SKILL.md on GitHub

Files

SKILL.md and 60 other files (scripts) in skills/pptx of anthropics/skills.

  • SKILL.md
  • LICENSE.txt
  • scripts/__init__.py
  • scripts/add_slide.py
  • scripts/clean.py
  • scripts/office/helpers/__init__.py
  • scripts/office/helpers/pptx_chart.py
  • scripts/office/helpers/pptx_slide.py
  • scripts/office/helpers/pptx_theme.py
  • scripts/office/schemas/ISO-IEC29500-4_2016/dml-chart.xsd
  • scripts/office/schemas/ISO-IEC29500-4_2016/dml-chartDrawing.xsd
  • scripts/office/schemas/ISO-IEC29500-4_2016/dml-diagram.xsd
  • scripts/office/schemas/ISO-IEC29500-4_2016/dml-lockedCanvas.xsd
  • scripts/office/schemas/ISO-IEC29500-4_2016/dml-main.xsd
  • scripts/office/schemas/ISO-IEC29500-4_2016/dml-picture.xsd
  • scripts/office/schemas/ISO-IEC29500-4_2016/dml-spreadsheetDrawing.xsd
  • … and 45 more

Open the folder on GitHubat commit 683bc88

Used in 6 other repositories

We found 8 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 6 other GitHub owners. This page covers the copy in anthropics/skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

PowerPoint Decks 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.

PowerPoint Decks compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
PowerPoint Decks this skillanthropics/skills180k6 repos~5.2kAutomated safety check: PassProprietary
PPTX Skill (Chinese)agentscope-ai/QwenPaw35k—~1.3kAutomated safety check: PassProprietary
PPTX Generatorpoco-ai/poco-claw1.4k4 repos~2kAutomated safety check: PassMIT
PowerPoint Deck GeneratorSourceWeft/SourceWeft158—~3.8kAutomated safety check: PassCustom licence
PowerPoint PPTX ToolkitXiaomiMiMo/MiMo-Code14k—~6.8kAutomated safety check: NotesApache-2.0
PPTXrvdbreemen/OTGW-firmware20734 repos~2.3kAutomated safety check: PassProprietary

Similar skills

  • PPTX Skill (Chinese)

    agentscope-ai/QwenPaw

    Chinese-language guide for reading, editing and building PowerPoint decks: text extraction, template editing and from-scratch creation with pptxgenjs.

    35k GitHub stars~1.3k tokensUpdated 7 days ago
    Documents & OfficeAuto-check passed
  • PPTX Generator

    poco-ai/poco-claw

    Generate, edit, and read PowerPoint presentations. An agent skill from poco-ai/poco-claw.

    1.4k GitHub starsUsed in 4 repos~2k tokens
    Documents & OfficeAuto-check passed
  • PowerPoint Deck Generator

    SourceWeft/SourceWeft

    Creates, edits and reads PowerPoint decks: new decks with PptxGenJS, existing PPTX or POTX files through XML edits, and text extraction with markitdown.

    158 GitHub stars~3.8k tokensUpdated 4 days ago
    Documents & OfficeAuto-check passed
  • PowerPoint PPTX Toolkit

    XiaomiMiMo/MiMo-Code

    Creates, edits and reads PowerPoint .pptx files with python-pptx or PptxGenJS, with scripts for XML edits, text dumps, PDF and image rendering, and thumbnails.

    14k GitHub stars~6.8k tokensUpdated 4 days ago
    Documents & OfficeAuto-check: notes
  • PPTX

    rvdbreemen/OTGW-firmware

    Use this skill any time a .pptx file is involved in any way — as input, output, or both.

    207 GitHub starsUsed in 34 repos~2.3k tokens
    Documents & OfficeAuto-check passed
  • BiSheng PPTX Builder

    dataelement/bisheng

    Builds PowerPoint decks in BiSheng's code executor with python-pptx, from scratch, from a supplied template or by rewriting an existing file, with Chinese layout rules.

    12k GitHub stars~1.8k tokensUpdated 6 days ago
    Documents & OfficeAuto-check passed

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Questions about PowerPoint Decks

What does PowerPoint Decks do?

Creates, edits, reads and validates .pptx and .potx files, using pptxgenjs for new decks and direct XML edits for existing ones, with helper scripts for thumbnails and checks. pptx is a ZIP archive of XML, and the skill picks an approach by task. New decks are written as a `pptxgenjs` script; existing decks or template-based builds are unzipped, edited under `ppt/slides/` and zipped again; reading uses `markitdown` for a block per slide, with a labeled thumbnail grid for visual review.

When should I use PowerPoint Decks?

PowerPoint Decks fits situations like: building a pitch deck or presentation from scratch; editing the text or layout of an existing .pptx; extracting the text of every slide from a deck; combining or splitting slide files.

How do I install PowerPoint Decks in Claude Code?

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

How do I install PowerPoint Decks in Codex?

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

Can I use PowerPoint Decks 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 anthropics/skills --skill pptx -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, .gemini/skills/pptx, .github/skills/pptx and .opencode/skills/pptx in your project.

What does PowerPoint Decks need to run?

Going by SKILL.md and its folder, PowerPoint Decks needs Python for the scripts in its folder and the command-line tools its instructions call (python, markitdown, npm, python3 and pdftoppm). Our summary lists: Node.js with `pptxgenjs`, for creating decks; Python, for the bundled scripts; LibreOffice, for PDF conversion; `markitdown`, for reading slide text.

Does PowerPoint Decks access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is PowerPoint Decks 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 PowerPoint Decks use?

PowerPoint Decks carries a proprietary licence (declared in SKILL.md). It is published on GitHub, but it is not open source: read the licence file before using or sharing it.

How many tokens does PowerPoint Decks use?

About 5.2k tokens (SKILL.md is roughly 21k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to PowerPoint Decks?

Skills that share tags, products or a category with PowerPoint Decks: PPTX Skill (Chinese) (agentscope-ai/QwenPaw, 35k stars), PPTX Generator (poco-ai/poco-claw, 1.4k stars), PowerPoint Deck Generator (SourceWeft/SourceWeft, 158 stars) and PowerPoint PPTX Toolkit (XiaomiMiMo/MiMo-Code, 14k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains PowerPoint Decks?

anthropics (a GitHub organization, an official publisher) maintains it in anthropics/skills, which has 179,935 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on October 5, 2026.

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