Favicon

What This Skill Does

The Favicon skill is a robust utility designed to handle every aspect of website icon management. Whether you are a web developer looking to extract branding assets or a designer needing quick placeholder mockups, this skill streamlines the process of locating, validating, and retrieving icons. It intelligently parses websites to identify icons, attempting multiple detection methods including standard /favicon.ico checks, HTML link tag analysis, and Apple-touch-icon lookups. When direct retrieval fails, the skill provides a seamless fallback to the Google Favicon API, ensuring you rarely walk away empty-handed. Additionally, it offers a generative feature for creating SVG-based placeholders, perfect for prototyping when specific assets are unavailable.

Installation

To integrate the Favicon skill into your environment, use the OpenClaw repository manager. Run the following command in your terminal:

clawhub install openclaw/skills/skills/bytesagain/favicon

Ensure that the system requirements, specifically curl, are installed on your host machine. For advanced metadata analysis using the info command, verify that file and xxd utilities are available on your system, as these enable precise MIME type and format detection.

Use Cases

This skill is indispensable for developers building web scrapers, dashboard tools, or bookmarking applications that require visual identification for URLs. Designers use it for rapid prototyping, and QA engineers use it to verify that assets are correctly linked and publicly accessible across production environments.

Example Prompts

1. "Check if https://openai.com has a valid favicon configured and identify which detection method works best."
2. "Download the favicon for https://github.com and save it as github_logo.ico in my current working directory."
3. "Generate a 64x64 SVG placeholder favicon using the letters 'AI' for my new project design mockups."

Tips & Limitations

The Favicon skill relies on external web responses; therefore, network latency may occur. While the HTML parsing and Google API fallback are highly effective, some websites block automated requests via robots.txt or CORS policies, which may result in download failures. When using the info command, ensure the file path is correct, as the skill performs local file system reads. For the best experience, use the generate command when building new sites to create consistent visual markers before official branding is finalized.