Hot take: evals are the #1 thing keeping companies from becoming AI-native. If you want to understand evals, read this post & then the accompanying guide. Tweaking prompts and trying a few inputs by hand only gets you so far; evals are what get your agents ready for deployment and keep them working once they're live. First, some definitions... - An eval: a grader applied to a trace. - A grader: anything that scores how well the agent did, from a simple code check to an LLM acting as a…