Question

You built an app where Claude can call a `get_weather` tool. In your first API call, Claude responds with a stop_reason of "tool_use" and requests weather data for Denver. Your code executes the weather lookup and gets the result. What must your application do next to get Claude's final natural-language answer for the user?

Accepted Answer

Send a new API request that appends Claude's tool_use turn plus a user message containing a tool_result block with the weather data

Answer

Send the tool result back in the system prompt so Claude can incorporate it into its next response

Answer

Start a fresh conversation with only the weather data as the first user message, discarding the prior turns

Answer

Re-send the original request unchanged, since Claude will automatically fetch and remember the result on retry