If you spend a lot of time in terminal, your prompt is probably heavily customized. asciinema a great terminal recording tool, by default is picking up your normal configuration - which is not perfect, because probably while recording a session, you don't want to distract people with unrelated details.
zsh, and if I want to avoid clutter I would have to do a bit of clean up at the beginning of each recording:
You can easily address it by setting up configuration in
~/.config/asciinema/config, that contains:
[record] ; Command to record, default: $SHELL command = /bin/sh
this makes asciinema session start with
sh shell, a most likely have no customization on your system, and gives distraction-free prompt by default: