I've had so many cases exactly like your example here. If you build up an intuition that knows that e.g. Claude 3.7 Sonnet can write code that uses boto3, and boto3 hasn't had any breaking changes that would affect S3 usage in the past ~24 months, you can jump straight into a prompt for this kind of task.

It doesn't just save me a ton of time, it results in me building automations that I normally wouldn't have taken on at all because the time spent fiddling with os.move/boto3/etc wouldn't have been worthwhile compared to other things on my plate.