i agree that is annoying but seems like anthropic's stance is that the task/agent should be provided an environment to write the file in the output you provide or provided a skill.md description on how to do that specific task.
personally it's a blurry line. most times i'm interacting with an agent where outputting to a file makes sense but it makes it less reliable when treating the model call as a deterministic function call.
personally it's a blurry line. most times i'm interacting with an agent where outputting to a file makes sense but it makes it less reliable when treating the model call as a deterministic function call.