Agent skill

PPTX Shell Verify

Verify PowerPoint presentation contents using python-pptx via shell when standard file readers fail

Install PPTX Shell Verify

skills CLI

$ npx skills add HKUDS/OpenSpace --skill pptx-shell-verify -a claude-code

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

GitHub CLI

$ gh skill install HKUDS/OpenSpace pptx-shell-verify --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/HKUDS/OpenSpace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/benchmarks/gdpval/skills/pptx-shell-verify .claude/skills/pptx-shell-verify && 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/

Paste into Claude Code

Install the "pptx-shell-verify" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pptx-shell-verify into .claude/skills/pptx-shell-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pptx-shell-verify", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pptx-shell-verify

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add HKUDS/OpenSpace --skill pptx-shell-verify -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install HKUDS/OpenSpace pptx-shell-verify --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/benchmarks/gdpval/skills/pptx-shell-verify .agents/skills/pptx-shell-verify && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "pptx-shell-verify" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pptx-shell-verify into .agents/skills/pptx-shell-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pptx-shell-verify", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add HKUDS/OpenSpace --skill pptx-shell-verify -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install HKUDS/OpenSpace pptx-shell-verify --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/benchmarks/gdpval/skills/pptx-shell-verify .cursor/skills/pptx-shell-verify && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "pptx-shell-verify" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pptx-shell-verify into .cursor/skills/pptx-shell-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pptx-shell-verify", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/HKUDS/OpenSpace.git --path benchmarks/gdpval/skills/pptx-shell-verify

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add HKUDS/OpenSpace --skill pptx-shell-verify -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install HKUDS/OpenSpace pptx-shell-verify --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/benchmarks/gdpval/skills/pptx-shell-verify .gemini/skills/pptx-shell-verify && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "pptx-shell-verify" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pptx-shell-verify into .gemini/skills/pptx-shell-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pptx-shell-verify", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install HKUDS/OpenSpace pptx-shell-verify

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add HKUDS/OpenSpace --skill pptx-shell-verify -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .github/skills && cp -r skills-src/benchmarks/gdpval/skills/pptx-shell-verify .github/skills/pptx-shell-verify && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "pptx-shell-verify" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pptx-shell-verify into .github/skills/pptx-shell-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pptx-shell-verify", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add HKUDS/OpenSpace --skill pptx-shell-verify -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install HKUDS/OpenSpace pptx-shell-verify --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/benchmarks/gdpval/skills/pptx-shell-verify .opencode/skills/pptx-shell-verify && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "pptx-shell-verify" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pptx-shell-verify into .opencode/skills/pptx-shell-verify/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pptx-shell-verify", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: pptx-shell-verify
GitHub stars: 7.7k
Token cost: ~925 tokens
SKILL.md length: 238 words
Files: 2
Skills in repo: 199
Repo updated: Aug 12, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Verify PowerPoint presentation contents using python-pptx via shell when standard file readers fail

Works in 5 steps: Attempt Standard File Read → Verify python-pptx Availability → Create Verification Script → …
Tasks that involve PowerPoint presentations
SKILL.md covers When to Use This Skill, Prerequisites, Step-by-Step Instructions and Example Validation Checks, plus 2 more sections
Calls pip

What it does

PPTX Shell Verify is an agent skill from HKUDS/OpenSpace. Verify PowerPoint presentation contents using python-pptx via shell when standard file readers fail

Its SKILL.md is about 930 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file.

It sits in Documents & Office, covering PowerPoint presentations. It works with Microsoft PowerPoint and python-pptx. The repository describes itself as: "OpenSpace: The Skill Management Layer for AI Agents" -- https://open-space.cloud/. The licence is MIT.

When your agent uses it

Tasks that involve PowerPoint presentations

Example prompts

“/pptx-shell-verify”

Requirements

Python 3

Workflow steps

5 steps, taken from the step headings in SKILL.md.

Attempt Standard File Read
Verify python-pptx Availability
Create Verification Script
Execute Verification
Interpret Results

What it can do on your machine

Read from SKILL.md and the folder at commit 3827781. 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
Shell commands in SKILL.md call:
- pip
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pip, 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

PPTX Shell Verify loads about 925 tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 238 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~29
When it runs · the whole SKILL.md, loaded when a task matches: ~925

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); files beside SKILL.md are not scanned.

SKILL.md

The full file from HKUDS/OpenSpace at commit 3827781, republished under its MIT licence (© HKUDS). 238 words, ~925 tokens.

Download SKILL.mdSave it as .claude/skills/pptx-shell-verify/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: pptx-shell-verify
description: Verify PowerPoint presentation contents using python-pptx via shell when standard file readers fail

PowerPoint Shell Verification

When to Use This Skill

Use this skill when:

read_file or other built-in tools fail to read PowerPoint (.pptx) files
You need to verify presentation structure (slide count, titles, content)
Standard file inspection methods return errors or incomplete data

Prerequisites

Python 3.x installed in the execution environment
python-pptx library available (install if needed)

Step-by-Step Instructions

Step 1: Attempt Standard File Read

First, try to read the file using standard methods:

read_file: path/to/presentation.pptx

If this fails or returns unusable data, proceed to Step 2.

Step 2: Verify python-pptx Availability

Check if the library is installed:

run_shell: python -c "import pptx; print('pptx available')"

If not available, install it:

run_shell: pip install python-pptx

Step 3: Create Verification Script

Create a Python script to extract presentation metadata:

python

# verify_pptx.py
from pptx import Presentation
import sys
import json

def verify_presentation(filepath):
    try:
        prs = Presentation(filepath)
        data = {
            "slide_count": len(prs.slides),
            "slides": []
        }
        
        for i, slide in enumerate(prs.slides):
            slide_data = {
                "slide_number": i + 1,
                "title": None,
                "shapes_count": len(slide.shapes)
            }
            
            # Extract title if present
            if slide.shapes.title:
                slide_data["title"] = slide.shapes.title.text
            
            data["slides"].append(slide_data)
        
        print(json.dumps(data, indent=2))
        return True
    except Exception as e:
        print(f"ERROR: {str(e)}", file=sys.stderr)
        return False

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python verify_pptx.py <file.pptx>", file=sys.stderr)
        sys.exit(1)
    
    success = verify_presentation(sys.argv[1])
    sys.exit(0 if success else 1)

Step 4: Execute Verification

Run the verification script:

run_shell: python verify_pptx.py path/to/presentation.pptx

Step 5: Interpret Results

Expected output format:

json

{
  "slide_count": 10,
  "slides": [
    {
      "slide_number": 1,
      "title": "Introduction",
      "shapes_count": 3
    },
    ...
  ]
}

Use this data to:

Confirm expected slide count matches
Verify slide titles are present
Validate presentation structure before delivery

Example Validation Checks

python

# Check slide count matches requirement
assert data["slide_count"] >= expected_min_slides

# Check all slides have titles
for slide in data["slides"]:
    assert slide["title"] is not None, f"Slide {slide['slide_number']} missing title"

Troubleshooting

Issue	Solution
Corrupted file	Verify file was created successfully, check file size
Permission denied	Ensure file path is accessible, check read permissions
Library not found	Install with `pip install python-pptx`
Empty presentation	File may be 0 bytes or incomplete write

Best Practices

Always verify after creation: Run verification immediately after generating a PowerPoint file
Keep verification script reusable: Store the script for future presentations
Validate before delivery: Never deliver a presentation without confirming structure
Log verification results: Keep verification output for audit trails

Files

SKILL.md and 1 other file in benchmarks/gdpval/skills/pptx-shell-verify of HKUDS/OpenSpace.

SKILL.md
.skill_id

Open the folder on GitHubat commit 3827781

Compare with similar skills

PPTX Shell Verify 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 Shell Verify compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
PPTX Shell Verify this skillHKUDS/OpenSpace	7.7k	—	~925	Automated safety check: Pass	MIT	1 mo ago
Slidesfcakyon/claude-codex-settings	1.2k	1 repos	~1.1k	Automated safety check: Pass	MIT	yesterday
Thesis Defense PPTX Builderzouchenzhen/thesis-defense-pptx-skill	266	—	~2.4k	Automated safety check: Pass	Apache-2.0	4 mo ago
Powerpoint SlidesNoi1r/powerpoint-skill	123	—	~12k	Automated safety check: Notes	MIT	6 mo ago
PPTX HTML Fidelity Auditsanqiufong/slides-from-anything	132	1 repos	~3.5k	Automated safety check: Pass	Apache-2.0	yesterday
PPTX Chart Forensicsaiden0z/pptx-renderer	126	—	~970	Automated safety check: Pass	Apache-2.0	15 days ago

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Questions about PPTX Shell Verify

What does PPTX Shell Verify do?

Verify PowerPoint presentation contents using python-pptx via shell when standard file readers fail. PPTX Shell Verify is an agent skill from HKUDS/OpenSpace.

When should I use PPTX Shell Verify?

PPTX Shell Verify fits situations like: tasks that involve PowerPoint presentations.

How do I install PPTX Shell Verify in Claude Code?

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

How do I install PPTX Shell Verify in Codex?

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

Can I use PPTX Shell Verify 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 HKUDS/OpenSpace --skill pptx-shell-verify -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-shell-verify, .gemini/skills/pptx-shell-verify, .github/skills/pptx-shell-verify and .opencode/skills/pptx-shell-verify in your project.

What does PPTX Shell Verify need to run?

Going by SKILL.md and its folder, PPTX Shell Verify needs the command-line tools its instructions call (pip). Our summary lists: Python 3.

Does PPTX Shell Verify access the network?

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

Is PPTX Shell Verify 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. Review the folder before installing.

What licence does PPTX Shell Verify use?

PPTX Shell Verify 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 Shell Verify use?

About 925 tokens (SKILL.md is roughly 3.7k 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 PPTX Shell Verify?

Skills that share tags, products or a category with PPTX Shell Verify: Slides (fcakyon/claude-codex-settings, 1.2k stars), Thesis Defense PPTX Builder (zouchenzhen/thesis-defense-pptx-skill, 266 stars), Powerpoint Slides (Noi1r/powerpoint-skill, 123 stars) and PPTX HTML Fidelity Audit (sanqiufong/slides-from-anything, 132 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains PPTX Shell Verify?

HKUDS (a GitHub organization) maintains it in HKUDS/OpenSpace, which has 7,743 GitHub stars. The repository holds 199 skills in this directory. The repository was last updated on August 12, 2026.

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

Install PPTX Shell Verify

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

PowerPoint Shell Verification

When to Use This Skill

Prerequisites

Step-by-Step Instructions

Step 1: Attempt Standard File Read

Step 2: Verify python-pptx Availability

Step 3: Create Verification Script

Step 4: Execute Verification

Step 5: Interpret Results

Example Validation Checks

Troubleshooting

Best Practices

Files

Compare with similar skills

Similar skills

More from HKUDS/OpenSpace

Related

Questions about PPTX Shell Verify