Setting the boundaries is the start; staying on top of the work is the habit. Reviewing what your agent did is quick when the record is built for it, and it is how trust grows from "I hope it is fine" to "I can see it is." Here is what that looks like day to day.
The record is the point
Every action the agent takes is logged: what it did, on whose behalf, and when. Reviewing is not detective work; it is reading a clear, time-ordered account. The first time you skim it and find exactly what you expected, the agent earns a little more rope.
What to glance at, and how often
Early on, look daily: the tasks it ran, the messages it sent, the things it flagged for you. As trust builds, a weekly skim is enough. You are watching for two things: that it is doing what you intended, and that the exceptions are landing on your desk rather than being guessed.
Confirm the decisions it routed to you
The agent does the work and sends the judgement calls to you. Reviewing those approvals is the highest-value minute you will spend: it is where your knowledge of the business goes in, and where the agent learns the boundary by your choices.
Tune as you go
A review usually surfaces a small adjustment: a permission to tighten, a threshold to lower, a task to hand over now that you trust it. The point of looking is not to catch the agent out; it is to keep widening what it can safely run.
Why this beats hoping
Software that acts without a trace asks for blind faith. An agent whose every step is recorded and reviewable asks only for attention, and gives you the means to give it. That is the difference between delegation and abdication.
Trust is a habit built on a good record. See how Sois records agent activity, or launch a workspace and watch the first task end to end.