Stop conditions

Compose stop helpers through stop_when:

stop_when = [
    step_count_is(12),
    max_tokens_used(40_000),
    max_cost(2),
    max_duration(60_000),
]

Additional helpers include has_tool_call(...) and finish_reason_is(...). Keep a step or duration bound even when using cost or token limits because those depend on reported usage.

Dynamic turns
Outputs and retries

Last modified on October 18, 2026

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