[BUG] Sub-agent lacking debug log or tools

I asked a claude-code instance to create few subagents for me.
One is a git-expert that is supposed to do the commit the way I want to.

I've been struggling with it for the entire afternoon because this subagent was saying the commit were done but in reality none was.

I tried to debug with one "git add" and finally found the issue: the tools listed in the definition file (created by the claude-code) were one per line instead of comma separated.

Because the subagents does not show what it is doing (event with CTRL+R), this is a silent error.

Please add a way to debug or see a subagent behavior.