The 90% Problem: Why Most AI Agents Are Still Broken

Your Agent Works Great. Until It Doesn't. You built an AI agent over the weekend. It calls tools, remembers context, follows instructions. You demo it to your team. Everyone's impressed. Monday morning, a user types "rename Ember to Infernia." Your agent loops 15 times, burns through your API budget, and returns a response that doesn't contain the word "Infernia." A rename. One entity. One operation. I've been there. I ran an eval suite on a production agent — 5 test cases, 5 runs each. Pass rat