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Install in OpenClaw
/install web-render-screenshot
Description
Generate ultra-high-resolution screenshots from HTML content using Playwright. Default 4x device scale factor produces crisp, pixel-perfect output ideal for...
Usage Guidance
This skill appears to do what it says: render HTML to high-resolution images. Before installing/use: (1) Be prepared to install Playwright and run 'playwright install chromium' and optionally Pillow; the skill does not declare these dependencies formally. (2) Rendering remote or untrusted HTML will execute that page's JavaScript inside headless Chromium and may cause network requests—avoid rendering sensitive pages or pages that require logged-in sessions unless you understand the risk. (3) The script writes output files to disk (ensure sufficient disk/CPU for large images). (4) If you need stricter guarantees, review the script (it's small and readable) and consider running it in an isolated environment/container to limit side effects.
Capability Analysis
Type: OpenClaw Skill
Name: web-render-screenshot
Version: 1.0.0
The skill is a legitimate utility for generating high-resolution screenshots from HTML content or URLs using the Playwright library. The Python script (`scripts/screenshot.py`) and the agent instructions (`SKILL.md`) are transparent, well-documented, and align perfectly with the stated purpose of rendering UI mockups and data visualizations. No indicators of malicious intent, data exfiltration, or prompt injection were found.
Capability Assessment
Purpose & Capability
Name/description describe converting HTML to high-resolution screenshots. The included script uses Playwright Chromium and Pillow (optional) to produce PNG/JPEG output, which is directly aligned with the stated purpose. No unrelated credentials, binaries, or capabilities are requested.
Instruction Scope
SKILL.md and the script limit actions to loading HTML (file:// or http/https), rendering in headless Chromium, waiting, and saving an image. There are no instructions to read unrelated system files, access secrets, or transmit captures to third-party endpoints. The guidance to use Telegram's --force-document is platform-specific but expected for delivery.
Install Mechanism
This is an instruction-only skill with no install spec. The runtime requires Python packages (playwright and its browser install step; PIL/Pillow is optional). The SKILL.md and script mention how to install Playwright but do not declare dependencies formally—this is not malicious but is a missing packaging detail you should be prepared to handle (pip install playwright; playwright install chromium; pip install pillow if you want image metadata).
Credentials
No environment variables, credentials, or config paths are requested or accessed. The script does not read secrets or external credentials.
Persistence & Privilege
The skill does not request persistent/system privileges and does not set always:true. It only runs when invoked and does not modify other skills or global agent settings.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install web-render-screenshot - After installation, invoke the skill by name or use
/web-render-screenshot - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
HTML超高清截图技能, Playwright 4x渲染, 默认7680x4320分辨率, 适合网页UI/数据可视化/文字密集型图片
Metadata
Frequently Asked Questions
What is Web Render Screenshot?
Generate ultra-high-resolution screenshots from HTML content using Playwright. Default 4x device scale factor produces crisp, pixel-perfect output ideal for... It is an AI Agent Skill for Claude Code / OpenClaw, with 78 downloads so far.
How do I install Web Render Screenshot?
Run "/install web-render-screenshot" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Web Render Screenshot free?
Yes, Web Render Screenshot is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Web Render Screenshot support?
Web Render Screenshot is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Web Render Screenshot?
It is built and maintained by Garming (@wujiaming88); the current version is v1.0.0.
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