Update to Sandcastles

{
  "description": "Analyze a single video",
  "included_files": [],
  "name": "analyze",
  "skill_md_contents": "---\nname: analyze\ndescription: Analyze a single video\n---\nAnalyze this video: $ARGUMENTS\n\nUse the `analyze_video` tool. Pass `$ARGUMENTS` as the URL (TikTok, Instagram, or YouTube Shorts) or as a `video_uuid` if it looks like a UUID. The tool queues the analysis and never returns it, so call `get_video_details` about 30 seconds later, then every 30 seconds until the analysis is complete, and summarize it covering the hook, format, narrative structure, topic, and any other key components. If `$ARGUMENTS` is empty, ask the user which video they want analyzed.\n"
}