Agent skill

Reliable PDF Extraction Ac5f89

Extract PDF text content using shell tools or Python libraries when readfile PDF handler fails

Install Reliable PDF Extraction Ac5f89

skills CLI

$ npx skills add HKUDS/OpenSpace --skill reliable-pdf-extraction-ac5f89 -a claude-code

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

GitHub CLI

$ gh skill install HKUDS/OpenSpace reliable-pdf-extraction-ac5f89 --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/reliable-pdf-extraction-ac5f89 .claude/skills/reliable-pdf-extraction-ac5f89 && 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 "reliable-pdf-extraction-ac5f89" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 into .claude/skills/reliable-pdf-extraction-ac5f89/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reliable-pdf-extraction-ac5f89", 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/reliable-pdf-extraction-ac5f89

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 reliable-pdf-extraction-ac5f89 -a codex

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

GitHub CLI

$ gh skill install HKUDS/OpenSpace reliable-pdf-extraction-ac5f89 --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/reliable-pdf-extraction-ac5f89 .agents/skills/reliable-pdf-extraction-ac5f89 && 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 "reliable-pdf-extraction-ac5f89" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 into .agents/skills/reliable-pdf-extraction-ac5f89/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reliable-pdf-extraction-ac5f89", 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 reliable-pdf-extraction-ac5f89 -a cursor

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

GitHub CLI

$ gh skill install HKUDS/OpenSpace reliable-pdf-extraction-ac5f89 --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/reliable-pdf-extraction-ac5f89 .cursor/skills/reliable-pdf-extraction-ac5f89 && 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 "reliable-pdf-extraction-ac5f89" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 into .cursor/skills/reliable-pdf-extraction-ac5f89/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reliable-pdf-extraction-ac5f89", 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/reliable-pdf-extraction-ac5f89

--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 reliable-pdf-extraction-ac5f89 -a gemini-cli

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

GitHub CLI

$ gh skill install HKUDS/OpenSpace reliable-pdf-extraction-ac5f89 --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/reliable-pdf-extraction-ac5f89 .gemini/skills/reliable-pdf-extraction-ac5f89 && 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 "reliable-pdf-extraction-ac5f89" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 into .gemini/skills/reliable-pdf-extraction-ac5f89/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reliable-pdf-extraction-ac5f89", 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 reliable-pdf-extraction-ac5f89

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 reliable-pdf-extraction-ac5f89 -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/reliable-pdf-extraction-ac5f89 .github/skills/reliable-pdf-extraction-ac5f89 && 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 "reliable-pdf-extraction-ac5f89" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 into .github/skills/reliable-pdf-extraction-ac5f89/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reliable-pdf-extraction-ac5f89", 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 reliable-pdf-extraction-ac5f89 -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 reliable-pdf-extraction-ac5f89 --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/reliable-pdf-extraction-ac5f89 .opencode/skills/reliable-pdf-extraction-ac5f89 && 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 "reliable-pdf-extraction-ac5f89" agent skill from https://github.com/HKUDS/OpenSpace/tree/main/benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 into .opencode/skills/reliable-pdf-extraction-ac5f89/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reliable-pdf-extraction-ac5f89", 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: reliable-pdf-extraction-ac5f89
GitHub stars: 7.8k
Token cost: ~704 tokens
SKILL.md length: 193 words
Files: 2
Skills in repo: 199
Repo updated: Aug 12, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Extract PDF text content using shell tools or Python libraries when readfile PDF handler fails

Works in 4 steps: Check PDF exists and is readable → Extract text using pdftotext → If pdftotext fails, try Python fallback → …
Tasks that involve PDF
SKILL.md covers Problem, Solution, Methods and Workflow, plus 3 more sections
Calls pdftotext, apt-get and pip

What it does

Reliable PDF Extraction Ac5f89 is an agent skill from HKUDS/OpenSpace. Extract PDF text content using shell tools or Python libraries when readfile PDF handler fails

Its SKILL.md is about 700 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 Python and 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

“/reliable-pdf-extraction-ac5f89”

Requirements

Python 3

Workflow steps

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

Check PDF exists and is readable
Extract text using pdftotext
If pdftotext fails, try Python fallback
Verify extraction succeeded

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:
- pdftotext
- apt-get
- 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

Reliable PDF Extraction Ac5f89 loads about 704 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 193 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~32
When it runs · the whole SKILL.md, loaded when a task matches: ~704

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). 193 words, ~704 tokens.

Download SKILL.mdSave it as .claude/skills/reliable-pdf-extraction-ac5f89/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: reliable-pdf-extraction-ac5f89
description: Extract PDF text content using shell tools or Python libraries when read_file PDF handler fails

Reliable PDF Text Extraction

Problem

The read_file tool with filetype='pdf' can be unreliable for PDF text extraction. It may:

Return binary image data instead of text
Fail with errors on certain PDF structures
Lose formatting or structured content

Solution

Use run_shell with dedicated PDF extraction tools instead of relying on read_file for PDFs.

Methods

Method 1: pdftotext (Recommended)

bash

pdftotext input.pdf output.txt

Or to extract to stdout:

bash

pdftotext input.pdf -

With layout preservation:

bash

pdftotext -layout input.pdf output.txt

Method 2: pdfinfo (Metadata)

bash

pdfinfo input.pdf

Useful for checking page count, dimensions, and PDF properties before extraction.

Method 3: Python with PyMuPDF (fitz)

python

import fitz  # PyMuPDF

doc = fitz.open("input.pdf")
text = ""
for page in doc:
    text += page.get_text()
doc.close()

Method 4: Python with pdfplumber (Tables)

python

import pdfplumber

with pdfplumber.open("input.pdf") as pdf:
    for page in pdf.pages:
        text = page.extract_text()
        tables = page.extract_tables()

Workflow

Check PDF exists and is readable:

bash

pdfinfo input.pdf 2>/dev/null || echo "PDF not accessible"

Extract text using pdftotext:

bash

pdftotext -layout input.pdf - > extracted_text.txt

If pdftotext fails, try Python fallback:

python

import fitz
doc = fitz.open("input.pdf")
for i, page in enumerate(doc):
    print(f"--- Page {i+1} ---")
    print(page.get_text())
doc.close()

Verify extraction succeeded:
- Check output is non-empty
- Verify text is readable (not binary/garbled)
- Confirm expected content is present

When to Use

Tool	Best For
`pdftotext`	Fast, simple text extraction
`pdftotext -layout`	Preserving spacing/formatting
`PyMuPDF`	Complex PDFs, programmatic access
`pdfplumber`	Tables and structured data

Example Integration

bash

# In your agent workflow, prefer this pattern:
result = run_shell(command="pdftotext document.pdf -", timeout=30)
if result.stdout and len(result.stdout.strip()) > 0:
    content = result.stdout
else:
    # Fallback to Python
    content = execute_python_to_extract_pdf("document.pdf")

Notes

Install tools if needed: apt-get install poppler-utils (for pdftotext/pdfinfo)
Python libraries: pip install pymupdf pdfplumber
Some PDFs are image-scanned and require OCR (Tesseract) instead
Always validate extracted content before proceeding with downstream tasks

Files

SKILL.md and 1 other file in benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 of HKUDS/OpenSpace.

SKILL.md
.skill_id

Open the folder on GitHubat commit 3827781

Compare with similar skills

Reliable PDF Extraction Ac5f89 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.

Reliable PDF Extraction Ac5f89 compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Reliable PDF Extraction Ac5f89 this skillHKUDS/OpenSpace	7.8k	—	~704	Automated safety check: Pass	MIT	1 mo ago
PDF ToolkitXiaomiMiMo/MiMo-Code	14k	—	~1.7k	Automated safety check: Pass	Apache-2.0	2 days ago
PDF Generation, Forms and Extractionpipeshub-ai/pipeshub-ai	3.8k	—	~2.9k	Automated safety check: Pass	Apache-2.0	today
PDFNousResearch/hermes-agent	253k	—	~3.1k	Automated safety check: Pass	MIT	today
PDF ExploreHughYau/AcademicForge	2.6k	—	~3.1k	Automated safety check: Pass	Apache-2.0	1 mo ago
PDF ExploreJimLiu/science-skills	228	2 repos	~3.6k	Automated safety check: Pass	Apache-2.0	3 mo ago

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Questions about Reliable PDF Extraction Ac5f89

What does Reliable PDF Extraction Ac5f89 do?

Extract PDF text content using shell tools or Python libraries when readfile PDF handler fails. Reliable PDF Extraction Ac5f89 is an agent skill from HKUDS/OpenSpace.

When should I use Reliable PDF Extraction Ac5f89?

Reliable PDF Extraction Ac5f89 fits situations like: tasks that involve PDF.

How do I install Reliable PDF Extraction Ac5f89 in Claude Code?

Run `npx skills add HKUDS/OpenSpace --skill reliable-pdf-extraction-ac5f89 -a claude-code`. Or copy the skill folder (benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 in HKUDS/OpenSpace) into .claude/skills/reliable-pdf-extraction-ac5f89 in your project. Claude Code loads it when a task matches its description.

How do I install Reliable PDF Extraction Ac5f89 in Codex?

Run `npx skills add HKUDS/OpenSpace --skill reliable-pdf-extraction-ac5f89 -a codex`. Or copy the skill folder (benchmarks/gdpval/skills/reliable-pdf-extraction-ac5f89 in HKUDS/OpenSpace) into .agents/skills/reliable-pdf-extraction-ac5f89 in your project. Codex loads it when a task matches its description.

Can I use Reliable PDF Extraction Ac5f89 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 reliable-pdf-extraction-ac5f89 -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/reliable-pdf-extraction-ac5f89, .gemini/skills/reliable-pdf-extraction-ac5f89, .github/skills/reliable-pdf-extraction-ac5f89 and .opencode/skills/reliable-pdf-extraction-ac5f89 in your project.

What does Reliable PDF Extraction Ac5f89 need to run?

Going by SKILL.md and its folder, Reliable PDF Extraction Ac5f89 needs the command-line tools its instructions call (pdftotext, apt-get and pip). Our summary lists: Python 3.

Does Reliable PDF Extraction Ac5f89 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 Reliable PDF Extraction Ac5f89 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 Reliable PDF Extraction Ac5f89 use?

Reliable PDF Extraction Ac5f89 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 Reliable PDF Extraction Ac5f89 use?

About 704 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.

What are the alternatives to Reliable PDF Extraction Ac5f89?

Skills that share tags, products or a category with Reliable PDF Extraction Ac5f89: PDF Toolkit (XiaomiMiMo/MiMo-Code, 14k stars), PDF Generation, Forms and Extraction (pipeshub-ai/pipeshub-ai, 3.8k stars), PDF (NousResearch/hermes-agent, 253k stars) and PDF Explore (HughYau/AcademicForge, 2.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Reliable PDF Extraction Ac5f89?

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.

Install Reliable PDF Extraction Ac5f89

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

Reliable PDF Text Extraction

Problem

Solution

Methods

Method 1: pdftotext (Recommended)

Method 2: pdfinfo (Metadata)

Method 3: Python with PyMuPDF (fitz)

Method 4: Python with pdfplumber (Tables)

Workflow

When to Use

Example Integration

Notes

Files

Compare with similar skills

Similar skills

More from HKUDS/OpenSpace

Related

Questions about Reliable PDF Extraction Ac5f89