anth-core-workflow-a

# 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 `tool_use` content blocks with structured JSON inputs; your code executes the function and returns `tool_result` blocks. This is the foundation for building AI agents. ## Prerequisites - Completed `anth-install-auth` setup - Understanding of the Messages API request/response cycle - Functions or APIs you want Claude to call ## Instructions ### Step 1: Define Tools ```python import anthropic client = anthropic.Anthropic() tools = [ { "name": "get_weather", "description": "Get current weather for a city. Use when the user asks about weather conditions.", "input_schema": { "type": "object", "properties": { "city": { "type": "string", "description": "City name, e.g. 'San Francisco, CA'" }, "units": { "type": "string", "enum": ["celsius", "fahrenheit"], "description": "Temperature units" } }, "required": ["city"] } }, { "name": "search_database", "description": "Search product database by query string. Returns matching products.", "input_schema": { "type": "object", "properties": { "query":...