Sandcastles

Sandcastles brings social content research into Claude. Ask what's working among the creators you follow on Instagram, TikTok, and YouTube Shorts, and get answers grounded in real performance data: views, engagement, and outlier scores that show which posts beat their channel's average. With Sandcastles you can: - Find top-performing videos and carousels in your watchlist or across everything Sandcastles has indexed - Break down the hooks, formats, and topics behind what's working in your niche - Recap any creator's recent content and performance - Analyze a specific post's hook, format, topic, and narrative structure - Discover new creators to follow by niche, or based on who you already watch - Save content to projects, set up rules that automatically analyze new high performers, and review your reports and channel analytics