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AI Prices Are Going Up. Your Architecture Is Your Hedge.
Lesson 2.3: Your agent has too many tools and not enough scoping. Tool architecture discipline is one of your levers against rising token costs.

TL;DR
- AI model price cuts are ending; expect costs to increase.
- The primary lever against rising costs is agent tool architecture, not model choice.
- Excessive tools and lack of scoping in AI agents lead to increased costs and decreased accuracy.
- Tool definitions can consume 25-30% of a context window before a prompt is even processed.
- Accuracy drops significantly when an agent has over 30-50 tools, leading to frequent errors.
- The solution involves fewer tools, tighter scoping, and control at the call level.
- This is Lesson 2.3 of the Claude Architecture series, focusing on tool distribution and choice.