I think it will be a good idea to optionally print the command before running a task to make the output a bit easier to read. I am proposing to make this optional and the command in some case could contain secrets too.

Also, it would be great if we can some line breaks or something more readable between tasks. As of now, reading logs is a bit difficult as there is no distinction in the logs.

Alternate solution:
use an echo statement in the command itself

hello:
  summary: some task
  command: |
    echo which terraform
    which terraform