Anthropic Core Workflow A — Tool Use (Function Calling) Overview Implement Claude's tool use capability where the model can call functions you define. Claude returns content blocks with structured JSON inputs; your code executes the function and returns blocks. This is the foundation for building AI agents. Prerequisites - Completed setup - Understanding of the Messages API request/response cycle - Functions or APIs you want Claude to call Instructions Step 1: Define Tools Step 2: Send Request with Tools Step 3: Execute Tool and Return Result Step 4: Agentic Loop (Multiple Tool Calls) Output…