Your AI Agent Gets Dumber the More You Teach It...

The Context Window Paradox Nobody Warned You About Here's the problem nobody talks about: every time you load a large skill file into your AI agent's context, you're making it worse at reasoning. Not near the limit. At every increment. Chroma's 2025 study tested 18 frontier models — GPT-4.1, Claude, Gemini 2.5, Qwen3 — and found performance degrades linearly as input length increases. The bigger the context, the worse the reasoning. This creates a fundamental tension for anyone building AI agent