I assume if the jenkins-step failed, you'd click a link to the dagger UI to see which dagger-step failed. Alternatively, never open jenkins at all and instead keep a tab open with the dagger UI.
Where is dagger UI and how does it relate to your CI? I don't see it in docs or cli help. Sounds like Dagger UI in this context (above) is providing little value beyond logging if it's not doing workflow execution.
I ask not to talk down on the product, but because I'm actually quite interested. Local execution, plus containerized execution sounds awesome. Just trying to understand the vision.