The person asking for detail may be trying to avoid agreeing to a different thing than you mean.

Questions about detail get heard as suspicion when they are usually the opposite. Someone asking exactly what is included, or by when, is trying to make sure the thing you are both saying yes to is one thing rather than two. Vague agreement feels warmer in the room and produces the argument three months later. The care being taken is care about the relationship.

Welcome the specifics rather than smoothing past them. Write down what was agreed and send it, framed as a summary rather than a contract. If you are the one with the questions, say plainly that you want to get it right.