reasoning_content examples

Language: 简体中文 | 日本語 | 四川话 | English

Models such as DeepSeek may return reasoning_content (chain-of-thought) alongside content (user-facing answer). pagent carries both on RunEnd; in streaming mode ReasoningDelta and TextDelta events deliver them separately.

Event reference: events.md

Usage

The examples below show the direct API shape. Runnable examples are grouped in examples/README.md.

Non-streaming: RunEnd

end = await agent.run(question, reasoning_effort="medium")

print(end.reasoning_content)
print(end.content)

Use end.content, not print(end), to avoid dumping the full RunEnd repr.

Streaming: arun_events

answer_started = False
async for event in agent.arun_events(question, reasoning_effort="medium"):
    match event:
        case ReasoningDelta(text=t):
            print(t, end="", flush=True)
        case TextDelta(text=t):
            if not answer_started:
                print("\nanswer: ", end="", flush=True)
                answer_started = True
            print(t, end="", flush=True)
        case RunEnd():
            print()

agent.arun() still yields answer text only (filters TextDelta internally).

Questions

• English (default): three mislabeled boxes puzzle.
• Chinese (--zh): 鸡兔同笼 — 35 heads, 94 legs (answer: 23 chickens, 12 rabbits).

Edit QUESTION_EN / QUESTION_ZH in reasoning_common.py.

reasoning_effort

Pass through run_kwargs, e.g. reasoning_effort="medium". Whether reasoning_content appears depends on the provider and model.