feat: 新增 account 和 plan 目录

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

account/admin/skills/video-downloader/SKILL.md

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+---
+name: openakita/skills@video-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:
+
+```bash
+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:
+```bash
+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:
+```bash
+python scripts/download_video.py "URL" -f webm
+```
+
+### Audio Only
+
+Use `-a` or `--audio-only` to download only audio as MP3:
+
+```bash
+python scripts/download_video.py "URL" -a
+```
+
+### Custom Output Directory
+
+Use `-o` or `--output` to specify a different output directory:
+
+```bash
+python scripts/download_video.py "URL" -o /path/to/directory
+```
+
+## Complete Examples
+
+1. Download video in 1080p as MP4:
+```bash
+python scripts/download_video.py "https://www.youtube.com/watch?v=dQw4w9WgXcQ" -q 1080p
+```
+
+2. Download audio only as MP3:
+```bash
+python scripts/download_video.py "https://www.youtube.com/watch?v=dQw4w9WgXcQ" -a
+```
+
+3. Download in 720p as WebM to custom directory:
+```bash
+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

account/admin/skills/video-downloader/scripts/download_video.py

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+#!/usr/bin/env python3
+"""
+YouTube Video Downloader
+Downloads videos from YouTube with customizable quality and format options.
+"""
+
+import argparse
+import sys
+import subprocess
+import json
+
+
+def check_yt_dlp():
+    """Check if yt-dlp is installed, install if not."""
+    try:
+        subprocess.run(["yt-dlp", "--version"], capture_output=True, check=True)
+    except (subprocess.CalledProcessError, FileNotFoundError):
+        print("yt-dlp not found. Installing...")
+        subprocess.run([sys.executable, "-m", "pip", "install", "--break-system-packages", "yt-dlp"], check=True)
+
+
+def get_video_info(url):
+    """Get information about the video without downloading."""
+    result = subprocess.run(
+        ["yt-dlp", "--dump-json", "--no-playlist", url],
+        capture_output=True,
+        text=True,
+        check=True
+    )
+    return json.loads(result.stdout)
+
+
+def download_video(url, output_path="/mnt/user-data/outputs", quality="best", format_type="mp4", audio_only=False):
+    """
+    Download a YouTube video.
+    
+    Args:
+        url: YouTube video URL
+        output_path: Directory to save the video
+        quality: Quality setting (best, 1080p, 720p, 480p, 360p, worst)
+        format_type: Output format (mp4, webm, mkv, etc.)
+        audio_only: Download only audio (mp3)
+    """
+    check_yt_dlp()
+    
+    # Build command
+    cmd = ["yt-dlp"]
+    
+    if audio_only:
+        cmd.extend([
+            "-x",  # Extract audio
+            "--audio-format", "mp3",
+            "--audio-quality", "0",  # Best quality
+        ])
+    else:
+        # Video quality settings
+        if quality == "best":
+            format_string = "bestvideo+bestaudio/best"
+        elif quality == "worst":
+            format_string = "worstvideo+worstaudio/worst"
+        else:
+            # Specific resolution (e.g., 1080p, 720p)
+            height = quality.replace("p", "")
+            format_string = f"bestvideo[height<={height}]+bestaudio/best[height<={height}]"
+        
+        cmd.extend([
+            "-f", format_string,
+            "--merge-output-format", format_type,
+        ])
+    
+    # Output template
+    cmd.extend([
+        "-o", f"{output_path}/%(title)s.%(ext)s",
+        "--no-playlist",  # Don't download playlists by default
+    ])
+    
+    cmd.append(url)
+    
+    print(f"Downloading from: {url}")
+    print(f"Quality: {quality}")
+    print(f"Format: {'mp3 (audio only)' if audio_only else format_type}")
+    print(f"Output: {output_path}\n")
+    
+    try:
+        # Get video info first
+        info = get_video_info(url)
+        print(f"Title: {info.get('title', 'Unknown')}")
+        print(f"Duration: {info.get('duration', 0) // 60}:{info.get('duration', 0) % 60:02d}")
+        print(f"Uploader: {info.get('uploader', 'Unknown')}\n")
+        
+        # Download the video
+        subprocess.run(cmd, check=True)
+        print(f"\n✅ Download complete!")
+        return True
+    except subprocess.CalledProcessError as e:
+        print(f"\n❌ Error downloading video: {e}")
+        return False
+    except Exception as e:
+        print(f"\n❌ Error: {e}")
+        return False
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Download YouTube videos with customizable quality and format"
+    )
+    parser.add_argument("url", help="YouTube video URL")
+    parser.add_argument(
+        "-o", "--output",
+        default="/mnt/user-data/outputs",
+        help="Output directory (default: /mnt/user-data/outputs)"
+    )
+    parser.add_argument(
+        "-q", "--quality",
+        default="best",
+        choices=["best", "1080p", "720p", "480p", "360p", "worst"],
+        help="Video quality (default: best)"
+    )
+    parser.add_argument(
+        "-f", "--format",
+        default="mp4",
+        choices=["mp4", "webm", "mkv"],
+        help="Video format (default: mp4)"
+    )
+    parser.add_argument(
+        "-a", "--audio-only",
+        action="store_true",
+        help="Download only audio as MP3"
+    )
+    
+    args = parser.parse_args()
+    
+    success = download_video(
+        url=args.url,
+        output_path=args.output,
+        quality=args.quality,
+        format_type=args.format,
+        audio_only=args.audio_only
+    )
+    
+    sys.exit(0 if success else 1)
+
+
+if __name__ == "__main__":
+    main()