The first week is for sitting with the product owner and writing down what good looks like. Finished means we have checked that one customer cannot see another, a small set of questions still passes, usage has a cap, and your team has the notes to own it.
The wider offer is AI features for a SaaS product that already ships. A new product, if that is the job, starts on the new SaaS page.
No. Most first features take that long after a short discovery. Larger ones take longer, and the number is written into the scope before anyone starts.
One customer cannot see another, a small set of questions still passes, usage has a cap, and your team has the notes to own it.
If you already know the feature, tell us which one.