cf.run_tasks() does not create a flow

[discdiver]

Description

Running Tasks docs say that with cf.run_tasks() "All of the tasks will be run as part of the same flow (if you are not already operating in a flow context), ..."

I'm not observing that behavior with the code snippet below.

A flow run is created if you use the @cf.flow decorator.

Example Code

import controlflow as cf
from langchain_community.tools import DuckDuckGoSearchRun


summarizer = cf.Agent(
    name="Headline Summarizer",
    instructions="An AI agent that fetches and summarizes current events",
    tools=[DuckDuckGoSearchRun()],
)

extractor = cf.Agent(
    name="Entity Extractor",
    instructions="An AI agent that does named entity recognition",
)


# @cf.flow() # uncomment and the flow is created
def get_headlines():

    summarizer_task = cf.Task(
        "Retrieve and summarize today's two top business headlines",
        agents=[summarizer],
        result_type=list[str],
    )

    extractor_task = cf.Task(
        "Extract any fortune 500 companies mentioned in the headlines and whether the sentiment is positive, neutral, or negative",
        agents=[extractor],
        depends_on=[summarizer_task],
    )

    results = cf.run_tasks([summarizer_task, extractor_task])
    return results


if __name__ == "__main__":
    results = get_headlines()
    print(results)

Version Information

ControlFlow version: 0.11.0                                              
       Prefect version: 3.0.10                                              
LangChain Core version: 0.3.12                                              
        Python version: 3.12.2                                              
              Platform: macOS-15.0.1-arm64-arm-64bit                        
                  Path: /opt/homebrew/Caskroom/miniforge/base/lib/python3.12

### Additional Context

_No response_