This is a plain-text description of what this specific stage of the base-level FSM workflow does, a finer-grained detail than the parent workflow's own descr field since each stage represents one discrete step. It tells an admin exactly which sub-step of a multi-stage operation is currently active or was last executed. For example, a stage description like Waiting for chassis discovery to complete explains a specific pause point within a broader reacknowledgment workflow.