OpenSpace is a skill-management layer for AI agents that stores, retrieves, evaluates, shares, and improves reusable workflows. It is intended for people using multiple coding agents who want skills to be reused and refined based on task outcomes. The catalogue provides 200 skills for use with OpenSpace and the agents it supports.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add HKUDS/OpenSpace --skill pdf-download-extract-fallback-enhanced-29b2f4git clone --depth 1 https://github.com/HKUDS/OpenSpaceWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/hkuds/openspace/pdf-download-extract-fallback-enhanced-29b2f4)<a href="https://agentmods.dev/skills/hkuds/openspace/pdf-download-extract-fallback-enhanced-29b2f4"><img src="https://agentmods.dev/badge/skills/hkuds/openspace/pdf-download-extract-fallback-enhanced-29b2f4/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/hkuds/openspace/pdf-download-extract-fallback-enhanced-29b2f4"><img src="https://agentmods.dev/badge/skills/hkuds/openspace/pdf-download-extract-fallback-enhanced-29b2f4.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00022 | $0.04313 |
| Opus 5 | $0.00011 | $0.02157 |
| Sonnet 5 | $0.00004 | $0.00863 |
| Haiku 4.5 | $0.00002 | $0.00431 |
Grade A, and why
pdf-extract-create-workflow scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
Many PDF hosting sites use JavaScript-based redirects or block automated requests. Use curl with a realistic browser user-agent: How it starts
The opening of the file, as written. The whole thing — 571 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PDF Extract and Create Workflow
This skill provides a complete PDF lifecycle workflow for acquiring PDF documents from web sources or local files, extracting their text content, AND generating new structured PDFs from processed data—with multiple fallback mechanisms throughout.
Overview
When working with PDFs, you may need to:
- Download PDFs from web sources (with anti-bot protection)
- Extract text content from PDFs (with fallback strategies)
- Generate new PDFs from processed data (with professional formatting)
This workflow ensures maximum success rate through progressive fallback strategies for extraction and templated approaches for generation.
Entry Point: Determine Your Starting Point
Before beginning, identify your scenario:
| Scenario | Start Here | Skip |
|---|---|---|
| PDF already on local disk | Step 2 (Verify File Type) | Step 1 (Download) |
| PDF at a web URL | Step 1 (Download) | None |
| Need to CREATE a PDF from data | Mode C (Generate) | Modes A & B |
| Need to extract AND create | Mode A/B → Mode C | None |
Mode A: Web URL Download
Step 1: Download PDF with Browser User-Agent
Many PDF hosting sites use JavaScript-based redirects or block automated requests. Use curl with a realistic browser user-agent:
curl -L -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36" -o output.pdf "URL_HERE"
Key flags:
-L: Follow redirects-A: Set user-agent header to mimic a real browser-o: Specify output filename
Additional headers for difficult sites:
curl -L \
-A "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36" \
-H "Accept: application/pdf,*/*" \
-H "Accept-Language: en-US,en;q=0.9" \
-H "Connection: keep-alive" \
-o output.pdf "URL_HERE"
Mode B: Local File Processing & Extraction
If you already have the PDF file locally, skip Step 1 and begin here:
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 571 lines · 0 tokens per session scan A c801e20ebab9
pdf-extract-create-workflow is a skill published in the GitHub repository HKUDS/OpenSpace (7,565 stars, last pushed 1mo ago), licensed MIT. It adds 22 tokens to every session and 4,313 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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