Thoughts on engineering, architecture, and building production systems.
Healthcare was not part of the original plan for plain. But a $5.3 trillion industry built on fragmented systems, manual workflows, and 450 million denied claims per year turned out to be a natural fit. Three production-grade agents, three days.
Real agents aren't LLM wrappers. They are durable services that take action. A practical view of conversational, workflow, and autonomous AI agents.
Why the same input should always produce the same output, and how plain achieves predictable code generation.
Vibe coding has replaced pitch decks with product demos and helped founders move faster than ever before. But when real users, revenue, and scale arrive, the lack of intentional system architecture quickly turns that early speed into fragility.
