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Frank Guan, writing for Google AI, published a guide on building production evaluation pipelines for AI agents in about 60 minutes, arguing that developers should stop relying on informal "vibe checking" to judge agent behavior. The piece targets Python and LangChain workflows and frames systematic evals as a devops practice for shipping agents reliably.

Stop "Vibe Checking" Your AI Agents: How to Build Production Evals in 60 Minutes Frank Guan Frank Guan Frank Guan Follow for Google AI Sep 30 Stop "Vibe Checking" Your AI Agents: How to Build Production Evals in 60 Minutes ai python langchain devops 14 reactions 5 comments 2 min read