Ah, I was wrong. I tested a bit and tasks that finish in a completed state don’t retry. It will show that they finish in state completed as many times as the flow retries, but it’s not actually rerunning. Here’s a basic script. You’ll note in the task logs in the UI that it only prints “trying task 1” one time.

from prefect import task, flow

@task()
def task1():
    print("trying task 1")

@task()
def task2():
    print("trying task 2")
    raise ValueError("fail")


@flow(retries=2, log_prints=True)
def run_tasks():
    task1()
    task2()

if __name__ == "__main__":
    run_tasks()