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Install in OpenClaw
/install url2pdf
Description
Convert URL to PDF suitable for mobile reading.
README (SKILL.md)
URL to PDF
Given a url for a webpage, convert it to pdf suitable for mobile reading.
See examples.
Requirements
uv
Installation
playwright itself will be installed by uv automatically, while it also needs browser to be installed:
uvx playwright install chromium
Usage
uv run --script ${baseDir}/url2pdf.py "${url}"
Path to pdf will be printed to stdout.
Agent Instructions
- Run the script: Pass the url to be converted as an argument.
- Handle Output: The script will output a path to a pdf file.
Use the
messagetool to send the pdf file to the user as a document message:
{
"action": "send",
"filePath": "\x3Cfilepath>"
}
Usage Guidance
This skill appears to do what it says (convert a webpage to a mobile-formatted PDF), but consider these points before installing:
- always:true: The skill is force-included in every agent run. If you don't want it available automatically, avoid installing or request the owner remove always:true.
- Filesystem writes: By default it writes PDFs to ~/Documents and respects an environment variable PDF_OUT_DIR (not documented in the registry). Ensure the runtime environment does not set PDF_OUT_DIR to a sensitive location and that the agent runs with least privilege.
- Network access: The skill opens arbitrary URLs you provide. That is required for its function but also means the skill can fetch remote content; do not let it fetch URLs you don't trust.
- Install size/side effects: Running it will pull Playwright and browser binaries (chromium) via uv/uvx — expect a large download and additional runtime components.
- Trust and sandboxing: Only install if you trust the author or run the skill in a sandboxed environment. If you need stricter controls, ask the maintainer to remove always:true, document PDF_OUT_DIR, and limit where files can be written.
If you want to proceed: run the script in an isolated environment (container or VM), set PDF_OUT_DIR to a safe directory you control, and review the provided Python source (url2pdf.py) yourself. If you are unsure, do not enable always:true and require on-demand invocation instead.
Capability Analysis
Type: OpenClaw Skill
Name: url2pdf
Version: 0.0.2
The skill bundle is designed to convert a given URL to a PDF file. The `SKILL.md` instructions guide the agent to execute the `url2pdf.py` script and then send the generated PDF to the user. The Python script uses `playwright` to browse the specified URL and save it as a PDF, defaulting to `~/Documents` or a user-specified path. There is no evidence of data exfiltration, malicious execution, persistence mechanisms, or prompt injection attempts against the agent. All observed behaviors are aligned with the stated purpose of the skill.
Capability Assessment
Purpose & Capability
Name and description match the bundled Python script which uses Playwright to load a webpage and print a PDF sized for an iPhone. The declared required binary 'uv' fits the script's shebang/comments that rely on uv to install/run dependencies.
Instruction Scope
SKILL.md tells the agent to run the script and send the generated PDF. The script reads an environment variable PDF_OUT_DIR (OUT_DIR) to choose where to write the PDF, but that env var is not declared in the skill requirements or documented in SKILL.md. The script writes files under the chosen path (default ~/Documents). The skill will also navigate to arbitrary URLs provided as input — expected for the feature but worth noting as it grants the skill network access and the ability to fetch arbitrary remote content.
Install Mechanism
No explicit install spec in registry; the skill is instruction-only but includes a Python script that relies on uv to install Playwright and python-slugify. Playwright will install browser binaries (chromium) via uvx, which is a large download but expected for this capability. No obscure URLs or third-party installers are present in the manifest or code.
Credentials
The skill does not declare any required environment variables but the script uses PDF_OUT_DIR to choose output location. That env var can redirect output to arbitrary filesystem locations. No API keys or unrelated credentials are requested, which is good, but the undocumented env var and default write to ~/Documents increase risk if misconfigured or if the agent runs with elevated filesystem access.
Persistence & Privilege
The skill is marked always: true which forces it to be included in every agent run. Combined with its ability to fetch arbitrary URLs, write files to user-controlled locations, and run a browser engine, this persistent inclusion increases blast radius and should be justified. The skill does not modify other skills or system configs, but always:true is a notable privilege.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install url2pdf - After installation, invoke the skill by name or use
/url2pdf - Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.0.2
- Added link to usage examples for easier reference.
- Updated installation instructions: now includes a step to install the Chromium browser for Playwright using "uvx playwright install chromium".
- Clarified that Playwright will be installed automatically by uv.
v0.0.1
- Initial release of url2pdf.
- Convert any webpage URL to a PDF optimized for mobile reading.
- Easy usage with "/url2pdf <url>" or similar triggers.
- Outputs the PDF file path for simple sharing.
Metadata
Frequently Asked Questions
What is URL to PDF?
Convert URL to PDF suitable for mobile reading. It is an AI Agent Skill for Claude Code / OpenClaw, with 1304 downloads so far.
How do I install URL to PDF?
Run "/install url2pdf" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is URL to PDF free?
Yes, URL to PDF is completely free (open-source). You can download, install and use it at no cost.
Which platforms does URL to PDF support?
URL to PDF is cross-platform and runs anywhere OpenClaw / Claude Code is available (darwin, linux, win32).
Who created URL to PDF?
It is built and maintained by guoqiao (@guoqiao); the current version is v0.0.2.
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