Claude Code's achilles heel: the inability to monitor or interact with subagents

On the one hand, we need to use subagents to execute work with a small context window. On the other hand, Claude Code won't allow users to monitor the subagent's conversation.

If you hit CTRL+O you'll get, at most, one line of text across the entire subagent's conversation or one line of output per command it runs. This prevents users from monitoring subagents and correcting them when they make mistakes or go off in the wrong direction. Half the time, you won't even notice their mistakes until much much later.

As far as I can tell, there are no hooks or 3rd-party tools for tackling this problem. Thoughts?