Show HN: I wrote a book for engineers building production AI systems

I wrote this because I kept watching the same mistakes: Teams chain prompts, call it "agentic," then wonder why everything breaks under real-world pressure. The book covers what actually works: memory systems, orchestration patterns, multi-agent coordination, observability, and real examples from systems that actually ship. Download the first 3 chapters (no email): https://productionaibook.com/hn https://productionaibook.com/hn I'd love to hear your production AI war stories. What's actually breaking? What patterns have you discovered? Giving away 15 copies to the most insightful comments.