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Agent skill

PPTX Reference Deck Analysis

by wshobson in wshobson/agents

A skill your agent uses when analyzing a reference PPTX for read-only structure, theme, typography, layout rhythm, diagnostics, derived template catalogs, or safe OOXML package inspection.

MITAuto-check passedDocuments & Office

Install PPTX Reference Deck Analysis

skills CLI
$ npx skills add wshobson/agents --skill pptx-reference-deck-analysis -a claude-code

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

GitHub CLI
$ gh skill install wshobson/agents pptx-reference-deck-analysis --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/wshobson/agents.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/pptx-deck-creation/skills/pptx-reference-deck-analysis .claude/skills/pptx-reference-deck-analysis && 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-reference-deck-analysis
GitHub stars
40k
Token cost
~689 tokens
SKILL.md length
321 words
Files
8 (incl. scripts, references)
Skills in repo
142
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when analyzing a reference PPTX for read-only structure, theme, typography, layout rhythm, diagnostics, derived template catalogs, or safe OOXML package inspection.

  • Works in 4 steps: Run scripts/inspect.py for a compact… → Run scripts/validate_package.py --output… → Run scripts/unpack.py only when… → …
  • Analyzing a reference PPTX for read-only structure
  • SKILL.md covers Contract, Rules and OOXML package inspection
  • Runs Python scripts from its folder

What it does

PPTX Reference Deck Analysis is an agent skill from wshobson/agents. Use when analyzing a reference PPTX for read-only structure, theme, typography, layout rhythm, diagnostics, derived template catalogs, or safe OOXML package inspection.

Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. The skill folder holds 9 other files, including scripts and reference files (for example `references/ooxml-parsing.md`, `references/reference-deck-analysis-patterns.md` and `references/reference-deck-analysis.md`).

It sits in Documents & Office, covering PowerPoint presentations. It works with Microsoft PowerPoint. The repository describes itself as: Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, Google Antigravity, and Pi. The licence is MIT.

When your agent uses it

  • Analyzing a reference PPTX for read-only structure
  • Derived template catalogs
  • Safe OOXML package inspection

Example prompts

  • “/pptx-reference-deck-analysis”

Requirements

  • Python 3

Workflow steps

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

  1. Run scripts/inspect.py for a compact JSON report of slide order, text, theme tokens, relationships, notes, comments, animations, and media.
  2. Run scripts/validate_package.py --output for malformed XML, broken internal relationships, content-type gaps, duplicate layout links, and…
  3. Run scripts/unpack.py only when raw-package evidence is necessary.
  4. Resolve relationship targets relative to the .rels owner; never infer slide order from filenames.

What it can do on your machine

Read from SKILL.md and the folder at commit 46891e7. 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 3 files in scripts/ (Python), which the agent can run.

    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 Reference Deck Analysis loads about 689 tokens when it runs, and up to ~1.7k if it reads all its reference files. Until then it costs about 49 tokens; SKILL.md has 321 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~49
When it runs · the whole SKILL.md, loaded when a task matches
~689
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.7k

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 wshobson/agents at commit 46891e7, republished under its MIT licence (© wshobson). 321 words, ~689 tokens.

Download SKILL.mdSave it as .claude/skills/pptx-reference-deck-analysis/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.
name
pptx-reference-deck-analysis
description
Use when analyzing a reference PPTX for read-only structure, theme, typography, layout rhythm, diagnostics, derived template catalogs, or safe OOXML package inspection.

PPTX Reference Deck Analysis

Inspect a reference deck as design evidence. This skill never copies, clones, or mutates a source deck.

Contract

Implement required extraction on demand with a small task-local python-pptx script. Capture only the information required for the new deck:

  • compact prompt context: slide count and size, text summaries, shape counts, styles, brand signals, template use, and layout rhythm;
  • full extraction: summary, slides, and read-only layout_tree evidence;
  • folder diagnostics: one result per deck plus a manifest;
  • style-master analysis: colors, fonts, size distribution, master/layout use, and flow patterns;
  • derived template catalog: zero-based source indices, layout roles, usable regions, placeholders, visual structures, and constraints.

Rules

  • Keep the source deck read-only and independently author every target-slide coordinate.
  • Use the bundled OOXML utilities only for raw themes, relationships, notes, comments, animations, media, masters, or layouts that high-level extraction cannot expose.
  • Record inspected parts and parsing exceptions in the analysis manifest.
  • Do not use extracted content, fonts, images, or proprietary assets in a generated deck without explicit permission and license evidence.

OOXML package inspection

Install defusedxml from requirements.txt before using the bundled utilities.

  1. Run scripts/inspect.py <deck.pptx> for a compact JSON report of slide order, text, theme tokens, relationships, notes, comments, animations, and media.
  2. Run scripts/validate_package.py <deck.pptx> --output <report.json> for malformed XML, broken internal relationships, content-type gaps, duplicate layout links, and orphaned parts.
  3. Run scripts/unpack.py <deck.pptx> <output-dir> only when raw-package evidence is necessary.
  4. Resolve relationship targets relative to the .rels owner; never infer slide order from filenames.
Safety
  • Never modify a supplied deck or blindly copy package parts into a new deck.
  • Run the scripts from a trusted workspace; they reject path traversal, symlinks, oversized members, and archive bombs.
  • Parse untrusted XML with defusedxml; do not enable entity expansion, DTD loading, or network access.
  • Treat theme colors as tokens unless fully resolved against the color scheme.

See references/reference-deck-analysis.md for output shapes, references/reference-deck-analysis-patterns.md for documentation-only patterns, and references/ooxml-parsing.md for package part maps.

© wshobson, 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 7 other files (scripts, references) in plugins/pptx-deck-creation/skills/pptx-reference-deck-analysis of wshobson/agents.

  • SKILL.md
  • references/ooxml-parsing.md
  • references/reference-deck-analysis-patterns.md
  • references/reference-deck-analysis.md
  • requirements.txt
  • scripts/inspect.py
  • scripts/unpack.py
  • scripts/validate_package.py

Open the folder on GitHubat commit 46891e7

Compare with similar skills

PPTX Reference Deck Analysis 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 Reference Deck Analysis compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
PPTX Reference Deck Analysis this skillwshobson/agents40k—~689Automated safety check: PassMIT
MarkitdownImCa0/just-laws78114 repos~3.2kAutomated safety check: NotesMIT
Image To Editable Pptningzimu/image-to-editable-ppt-skill2.8k—~4.3kAutomated safety check: PassMIT
GenOffice Document CLIgenspark-ai/genoffice8.8k—~19kAutomated safety check: PassApache-2.0
PPTX PostersK-Dense-AI/claude-scientific-writer2.4k2 repos~2.7kAutomated safety check: NotesMIT
Slidesfcakyon/claude-codex-settings1.2k1 repos~1.1kAutomated safety check: PassMIT

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Works with

Categories

Questions about PPTX Reference Deck Analysis

What does PPTX Reference Deck Analysis do?

A skill your agent uses when analyzing a reference PPTX for read-only structure, theme, typography, layout rhythm, diagnostics, derived template catalogs, or safe OOXML package inspection. PPTX Reference Deck Analysis is an agent skill from wshobson/agents. Use when analyzing a reference PPTX for read-only structure, theme, typography, layout rhythm, diagnostics, derived template catalogs, or safe OOXML package inspection.

When should I use PPTX Reference Deck Analysis?

PPTX Reference Deck Analysis fits situations like: analyzing a reference PPTX for read-only structure; derived template catalogs; safe OOXML package inspection.

How do I install PPTX Reference Deck Analysis in Claude Code?

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

How do I install PPTX Reference Deck Analysis in Codex?

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

Can I use PPTX Reference Deck Analysis 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 wshobson/agents --skill pptx-reference-deck-analysis -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-reference-deck-analysis, .gemini/skills/pptx-reference-deck-analysis, .github/skills/pptx-reference-deck-analysis and .opencode/skills/pptx-reference-deck-analysis in your project.

What does PPTX Reference Deck Analysis need to run?

Going by SKILL.md and its folder, PPTX Reference Deck Analysis needs Python for the scripts in its folder. Our summary lists: Python 3.

Does PPTX Reference Deck Analysis 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 Reference Deck Analysis 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 Reference Deck Analysis use?

PPTX Reference Deck Analysis 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 Reference Deck Analysis use?

About 689 tokens (SKILL.md is roughly 2.8k 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 978 tokens, read only when the agent opens those files.

What are the alternatives to PPTX Reference Deck Analysis?

Skills that share tags, products or a category with PPTX Reference Deck Analysis: Markitdown (ImCa0/just-laws, 781 stars), Image To Editable Ppt (ningzimu/image-to-editable-ppt-skill, 2.8k stars), GenOffice Document CLI (genspark-ai/genoffice, 8.8k stars) and PPTX Posters (K-Dense-AI/claude-scientific-writer, 2.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains PPTX Reference Deck Analysis?

wshobson (a GitHub user) maintains it in wshobson/agents, which has 40,254 GitHub stars. The repository holds 142 skills in this directory. The repository was last updated on October 5, 2026.

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