Classify the actions
Reading, summarising, drafting: low risk. Emailing a customer, changing an order, paying: human approval is a must, at least at first.
Make approval quick
If approving takes longer than doing it yourself, the tool will be abandoned. The approval screen shows the essentials and allows corrections in one move.
Relax the rules with data
After a few weeks, statistics show where the agent is never wrong. The rule can then evolve. See task automation and first AI project.