Code Mode: Moving Agent Control Flow Out of the LLM

Most agents still use tools one call at a time.

The model decides to call a tool. The runtime executes it. The result is appended to the conversation. The model runs again and decides what to do next.

For a short task this works well.

For a task that needs twenty API calls, filtering, retries, a loop, or several dependent operations, the design becomes expensive:

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