Agent Tool Routing Design intelligent systems for agents to select and use the right tools at the right time. When to Use - Agents need to choose between multiple tools - Implementing MCP (Model Context Protocol) integrations - Building agents with external API access - Designing tool fallback strategies - Optimizing tool usage for cost/performance Tool Architecture Tool Definition Tool Registry Router Strategies Strategy 1: LLM-Based Selection Let the model choose based on descriptions. Strategy 2: Rule-Based Selection Deterministic routing based on patterns. Strategy 3: Cost-Optimized Selec…