The Day 30 Problem: Why Your AI Agent Gets Worse Over Time

Your AI agent worked great in week one. The memory was clean, context was fresh, and every decision made sense. By day 30, something changed. The agent starts making weird decisions, loading irrelevant context, and burning tokens on things that don't matter anymore. This isn't a model problem. It's context pollution - and it's the reason production agents degrade over time. I've been running an autonomous AI agent 24/7 for over 60 days. Here's what I learned about the day 30 problem and how to fix it before it costs you.