DictionaryArchitecture
Programmatic Tool Calling
The AI writes a small program that calls tools for it, so only the final answer comes back to read.
Definition
Claude calls your tools from inside code execution instead of making one model round trip per call, so intermediate results are processed in code and only the final output enters the context window.
Example
Claude writes a loop that calls get_expenses for 20 employees inside code execution and returns just the three who are over budget.