gistfile1.txt

OK, I understand what is not supported (now?).

In this case, hoop server should send response message means correct reason, like
'concurrent append not supported'.
But now, in fact, hoop send message as 'failed to create file'. We cannot know what is wrong
from this message. (request method? wrong path? or ...?)

This is wrong message, and i want to be fixed.

ほげ

If hoop doesn't support concurrent append, hoop should tell that information to user like this:
'concurrent append not supported'
In fact, current version of hoop returns 'failed to create file' message and obviously this message doesn't describe the above information.

ぐらいですかね。全体の見通しが悪くなるので要件だけズバッと書いちゃっていいと思います

あ、間違えた。describe よりも explain か、かっこ悪いですけど tell をもう一度使った方がいいです

ありがとうございます！