When building a workflow with testing tools, you tend to want to be able to put these in container and then minimise this to improve readability of the workflow.
For example instead of this:
You might want to minimise the error checks like this:
However when running apart from reading through the results window, there is no immediate indicator that there is a tool inside the container that has errored:
So the feature enhancement request is to add in an exclamation marker to show the user that a tool inside has an error and you can then easily open it up and investigate further.