Book: AI That Answers The series: AI in TypeScript — 5 books, from your first LLM call to agents in production — all five here My project: Hermes IDE | GitHub — an IDE for developers who ship with Claude Code and other AI coding tools Me: xgabriel.com | GitHub Pass a Zod 4 schema to a structured-output helper and every .refine() in it is dropped before the model sees it, with no warning. The OpenAI Node SDK and the Vercel AI SDK both call z.toJSONS...