Things You're Overengineering in Your AI Agent (The LLM Already Handles Them)

I've been building AI agents in production for the past two years. Not demos. Not weekend projects. Systems that real users talk to every day and get angry at when they break. And the pattern I keep seeing? Engineers building elaborate machinery around the model. Custom orchestration layers. Hand-rolled retry logic. Massive tool routing systems. All to solve problems the LLM was already solving if you just let it. Here's what I'd rip out if I could go back. 1. Custom Tool Selectio...