So, after installing the plugin I noticed that my status bar was updated too frequently. Apparently, the presence of tmux-cpu influences the update and status-interval is ignored.

For example, if I set

tmux set -g status-right "%H:%M:%S" tmux set -g status-interval 5 

I can see the seconds updated every 5 seconds. On the other hand, if I add the tmux_cpu plugin:

tmux set -g status-right "%H:%M:%S #(/path/to/plugin/scripts/cpu_percentage.sh)" tmux set -g status-interval 5 

I will see the seconds and the CPU percentage updated almost every second, disregarding the value of status-interval. I think status-interval should be taken into account, and I see this behaviour as buggy.

I can help with the debug, but not being familiar with tmux-plugins in any way I don't know where to start.