What probably matters to youSection of the release
What
The Background dialog list adds a Completed group, shown between local agents and dynamic workflows. Local agents that have finished but are still being held alive now count as stoppable, so the x stop hint appears for them too.
Details
The stop path for a held-alive completed agent requires an interactive session.
Evidence
label: "Completed"
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
