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    Claude Skill · Marketing

    Youtube Downloader

    Download YouTube videos with customizable quality and format options. Use this skill when the user asks to download, save, or grab YouTube videos. Supports various quality settings (best, 1080p, 720p, 480p, 360p), multiple formats (mp4, webm, mkv), and audio-only downloads as MP3.

    Claude
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    OpenClaw
    Hermes
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    Skill definition (SKILL.md)


    name: youtube-downloader description: Download YouTube videos with customizable quality and format options. Use this skill when the user asks to download, save, or grab YouTube videos. Supports various quality settings (best, 1080p, 720p, 480p, 360p), multiple formats (mp4, webm, mkv), and audio-only downloads as MP3.

    YouTube Video Downloader

    Download YouTube videos with full control over quality and format settings.

    Quick Start

    The simplest way to download a video:

    python scripts/download_video.py "https://www.youtube.com/watch?v=VIDEO_ID"
    

    This downloads the video in best available quality as MP4 to /mnt/user-data/outputs/.

    Options

    Quality Settings

    Use -q or --quality to specify video quality:

    • best (default): Highest quality available
    • 1080p: Full HD
    • 720p: HD
    • 480p: Standard definition
    • 360p: Lower quality
    • worst: Lowest quality available

    Example:

    python scripts/download_video.py "URL" -q 720p
    

    Format Options

    Use -f or --format to specify output format (video downloads only):

    • mp4 (default): Most compatible
    • webm: Modern format
    • mkv: Matroska container

    Example:

    python scripts/download_video.py "URL" -f webm
    

    Audio Only

    Use -a or --audio-only to download only audio as MP3:

    python scripts/download_video.py "URL" -a
    

    Custom Output Directory

    Use -o or --output to specify a different output directory:

    python scripts/download_video.py "URL" -o /path/to/directory
    

    Complete Examples

    1. Download video in 1080p as MP4:
    python scripts/download_video.py "https://www.youtube.com/watch?v=dQw4w9WgXcQ" -q 1080p
    
    1. Download audio only as MP3:
    python scripts/download_video.py "https://www.youtube.com/watch?v=dQw4w9WgXcQ" -a
    
    1. Download in 720p as WebM to custom directory:
    python scripts/download_video.py "https://www.youtube.com/watch?v=dQw4w9WgXcQ" -q 720p -f webm -o /custom/path
    

    How It Works

    The skill uses yt-dlp, a robust YouTube downloader that:

    • Automatically installs itself if not present
    • Fetches video information before downloading
    • Selects the best available streams matching your criteria
    • Merges video and audio streams when needed
    • Supports a wide range of YouTube video formats

    Important Notes

    • Downloads are saved to /mnt/user-data/outputs/ by default
    • Video filename is automatically generated from the video title
    • The script handles installation of yt-dlp automatically
    • Only single videos are downloaded (playlists are skipped by default)
    • Higher quality videos may take longer to download and use more disk space
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