Improve visual of "Add description"

I asked my team member why he is using comments instead description while creating tasks. He said it is due description area is looking different based on if there is description already or not, and so it is hard to find pencil icon.

This is quite clear:

This is acceptable, but not perfect, I sometimes struggle to find it too when sleepy:

This is indeed confusing:

Since you must remember pencil is here, find it, move cursor and click:

Possible improvement is to make pencil always visible:

Or adding border like comments: