Sandcastle Labs ยท Build logsWorking notes from inside our projects. What we tried, what the numbers said, what changed.https://www.sandcastlelabs.ai/en-usA clickable mockup in an afternoonhttps://www.sandcastlelabs.ai/logs/clickable-mockup-in-an-afternoon/https://www.sandcastlelabs.ai/logs/clickable-mockup-in-an-afternoon/An afternoon of Phoenix LiveView produced fourteen connected screens. The clickable mockup is the cheapest discovery tool we have for an AI product.Mon, 08 Jun 2026 00:00:00 GMTWeek one: V1 of the site, and the parts that are not donehttps://www.sandcastlelabs.ai/logs/shipping-v1-of-the-studio-site/https://www.sandcastlelabs.ai/logs/shipping-v1-of-the-studio-site/What shipped in week one of sandcastlelabs.ai: aurora hero, mobile nav, brand tokens, PostHog A/B. And the parts we left visibly unfinished on purpose.Mon, 08 Jun 2026 00:00:00 GMTThree providers, one methodology cardhttps://www.sandcastlelabs.ai/logs/three-providers-one-methodology-card/https://www.sandcastlelabs.ai/logs/three-providers-one-methodology-card/We wired three LLM providers through one probe runner. The output is a methodology card that shows exactly how each answer was produced.Mon, 08 Jun 2026 00:00:00 GMTRecommendations are the secrethttps://www.sandcastlelabs.ai/logs/recommendations-are-the-secret/https://www.sandcastlelabs.ai/logs/recommendations-are-the-secret/Every GEO tool ships a beautiful dashboard. We bet the value is the recommendation, and rebuilt Beacon so every rec is shippable as written.Sun, 07 Jun 2026 00:00:00 GMT