I think part of expertise is the checklist experts carry in their heads:

What needs to be done? What counts as done? What must not be changed? When should the agent stop? What signals verify success?

The important question is how that expertise should be passed to the AI. Not just as more context, but in a form the agent can use before execution.

I don't want them to analyze my data. If want to know, they should ask me by sending me a link to a survey.