nuoyimanaituling/manus-x
Process PDF files - extract text, read content, create PDFs, merge or split documents.
Verify generated PDFs for integrity and page count using PyPDF2 before task completion.
Install PDF Verification Check
$ npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install HKUDS/OpenSpace pdf-verification-check --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/benchmarks/gdpval/skills/pdf-verification-check .claude/skills/pdf-verification-check && rm -rf skills-srcUse ~/.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/
Install the "pdf-verification-check" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pdf-verification-check into .claude/skills/pdf-verification-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pdf-verification-check", 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 install https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pdf-verification-checkType 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.
$ npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install HKUDS/OpenSpace pdf-verification-check --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/benchmarks/gdpval/skills/pdf-verification-check .agents/skills/pdf-verification-check && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "pdf-verification-check" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pdf-verification-check into .agents/skills/pdf-verification-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pdf-verification-check", 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.
$ npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install HKUDS/OpenSpace pdf-verification-check --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/benchmarks/gdpval/skills/pdf-verification-check .cursor/skills/pdf-verification-check && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "pdf-verification-check" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pdf-verification-check into .cursor/skills/pdf-verification-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pdf-verification-check", 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 https://github.com/HKUDS/OpenSpace.git --path benchmarks/gdpval/skills/pdf-verification-check--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install HKUDS/OpenSpace pdf-verification-check --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/benchmarks/gdpval/skills/pdf-verification-check .gemini/skills/pdf-verification-check && rm -rf skills-srcUse ~/.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/
Install the "pdf-verification-check" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pdf-verification-check into .gemini/skills/pdf-verification-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pdf-verification-check", 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.
$ gh skill install HKUDS/OpenSpace pdf-verification-checkInstalls 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).
$ npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .github/skills && cp -r skills-src/benchmarks/gdpval/skills/pdf-verification-check .github/skills/pdf-verification-check && rm -rf skills-srcUse ~/.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/
Install the "pdf-verification-check" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pdf-verification-check into .github/skills/pdf-verification-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pdf-verification-check", 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.
$ npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install HKUDS/OpenSpace pdf-verification-check --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/HKUDS/OpenSpace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/benchmarks/gdpval/skills/pdf-verification-check .opencode/skills/pdf-verification-check && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "pdf-verification-check" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/pdf-verification-check into .opencode/skills/pdf-verification-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pdf-verification-check", 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
pdf-verification-check- GitHub stars
- 7.8k
- Token cost
- ~718 tokens
- SKILL.md length
- 225 words
- Files
- 2
- Skills in repo
- 199
- Repo updated
- First seen
- Licence
- MIT
At a glance
Verify generated PDFs for integrity and page count using PyPDF2 before task completion.
- Works in 4 steps: Identify Expected Outputs: List the file… → Run Verification Script: Use run_shell… → Validate Results: Ensure the script… → …
- Tasks that involve PDF
- SKILL.md covers When to Use, Verification Steps, Verification Script and Integration Example, plus 2 more sections
- Calls python3 and pip
What it does
PDF Verification Check is an agent skill from HKUDS/OpenSpace. Verify generated PDFs for integrity and page count using PyPDF2 before task completion.
Its SKILL.md is about 720 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file.
It sits in Documents & Office, covering PDF. It works with pypdf. 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 PDF
Example prompts
- “/pdf-verification-check”
Requirements
- Python 3
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Identify Expected Outputs: List the file paths and their expected page counts.
- Run Verification Script: Use run_shell to execute a Python script using PyPDF2.
- Validate Results: Ensure the script exits successfully and reports the correct page counts.
- Remediate: If verification fails, inspect the generation logic and regenerate.
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:
python3pip
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
PDF Verification Check loads about 718 tokens when it runs. Until then it costs about 28 tokens; SKILL.md has 225 words of instructions outside code blocks.
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). 225 words, ~718 tokens.
Download SKILL.mdSave it as
.claude/skills/pdf-verification-check/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- pdf-verification-check
- description
- Verify generated PDFs for integrity and page count using PyPDF2 before task completion.
PDF Verification Check
Use this skill whenever your task involves generating PDF files. Do not declare task completion until you have programmatically verified that the PDFs exist, are not corrupted, and match the expected page counts.
When to Use
- Immediately after generating one or more PDF files.
- Before reporting success or moving to the next phase of a task.
- When specific page counts are required (e.g., "1-page summary", "2-page listing").
Verification Steps
- Identify Expected Outputs: List the file paths and their expected page counts.
- Run Verification Script: Use
run_shellto execute a Python script usingPyPDF2. - Validate Results: Ensure the script exits successfully and reports the correct page counts.
- Remediate: If verification fails, inspect the generation logic and regenerate.
Verification Script
Use the following Python snippet with run_shell to verify PDFs. Adjust the expected_pages dictionary to match your task requirements.
import sys
from PyPDF2 import PdfReader
def verify_pdfs(files):
"""
files: dict mapping filepath to expected_page_count (or None if any count is ok)
"""
all_valid = True
for path, expected_count in files.items():
try:
reader = PdfReader(path)
actual_count = len(reader.pages)
if expected_count is not None and actual_count != expected_count:
print(f"FAIL: {path} has {actual_count} pages, expected {expected_count}")
all_valid = False
else:
print(f"OK: {path} has {actual_count} pages")
except Exception as e:
print(f"ERROR: Cannot read {path} - {str(e)}")
all_valid = False
return 0 if all_valid else 1
# Example usage - modify this map for your specific task
files_to_check = {
"output/listing.pdf": 2,
"output/map.pdf": 1
}
sys.exit(verify_pdfs(files_to_check))Integration Example
When using run_shell, pass the script as a heredoc or save it temporarily:
python3 -c "
import sys
from PyPDF2 import PdfReader
# ... insert logic here ...
"Rules
- Always Verify: Never assume a PDF generation tool succeeded without checking the output file.
- Check Integrity: Successfully opening the file confirms it is not corrupted/empty.
- Check Counts: Page count mismatches often indicate formatting errors or missing content.
- Fail Fast: If verification fails, attempt to fix the generation code immediately rather than proceeding.
Dependencies
Ensure PyPDF2 is available in the environment. If not, install it first:
pip install PyPDF2© HKUDS, 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 1 other file in benchmarks/gdpval/skills/pdf-verification-check of HKUDS/OpenSpace.
- SKILL.md
- .skill_id
Open the folder on GitHubat commit 3827781
Compare with similar skills
PDF Verification Check 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| PDF Verification Check this skillHKUDS/OpenSpace | 7.8k | — | ~718 | Automated safety check: Pass | MIT | |
| PDFnuoyimanaituling/manus-x | 830 | — | ~985 | Automated safety check: Pass | None | |
| PDFeinverne/dotfiles | 121 | 47 repos | ~1.8k | Automated safety check: Pass | Proprietary | |
| Reportlabjimmc414/Kosmos | 595 | 1 repos | ~4.2k | Automated safety check: Pass | None | |
| PDFguyi-a/pi-ling | 106 | — | ~3.3k | Automated safety check: Pass | MIT | |
| PDF ReadingWide-Moat/open-computer-use | 126 | 1 repos | ~2.7k | Automated safety check: Pass | Proprietary |
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Related
Works with
Categories
Questions about PDF Verification Check
What does PDF Verification Check do?
Verify generated PDFs for integrity and page count using PyPDF2 before task completion. PDF Verification Check is an agent skill from HKUDS/OpenSpace. Verify generated PDFs for integrity and page count using PyPDF2 before task completion.
When should I use PDF Verification Check?
PDF Verification Check fits situations like: tasks that involve PDF.
How do I install PDF Verification Check in Claude Code?
Run `npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a claude-code`. Or copy the skill folder (benchmarks/gdpval/skills/pdf-verification-check in HKUDS/OpenSpace) into .claude/skills/pdf-verification-check in your project. Claude Code loads it when a task matches its description.
How do I install PDF Verification Check in Codex?
Run `npx skills add HKUDS/OpenSpace --skill pdf-verification-check -a codex`. Or copy the skill folder (benchmarks/gdpval/skills/pdf-verification-check in HKUDS/OpenSpace) into .agents/skills/pdf-verification-check in your project. Codex loads it when a task matches its description.
Can I use PDF Verification Check 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 pdf-verification-check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pdf-verification-check, .gemini/skills/pdf-verification-check, .github/skills/pdf-verification-check and .opencode/skills/pdf-verification-check in your project.
What does PDF Verification Check need to run?
Going by SKILL.md and its folder, PDF Verification Check needs the command-line tools its instructions call (python3 and pip). Our summary lists: Python 3.
Does PDF Verification Check 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 PDF Verification Check 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 PDF Verification Check use?
PDF Verification Check 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 PDF Verification Check use?
About 718 tokens (SKILL.md is roughly 2.9k 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 PDF Verification Check?
Skills that share tags, products or a category with PDF Verification Check: PDF (nuoyimanaituling/manus-x, 830 stars), PDF (einverne/dotfiles, 121 stars), Reportlab (jimmc414/Kosmos, 595 stars) and PDF (guyi-a/pi-ling, 106 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains PDF Verification Check?
HKUDS (a GitHub organization) maintains it in HKUDS/OpenSpace, which has 7,754 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.