HCD.28:4.7 - Return a construction that its recipient can use

Return the intended work and contribution; conditional audience and branches; available subject basis and unresolved subject questions; connected programme, material, task and support variants; whole burden and peak constraints; evidence obtained and still needed; and the change that reopens the comparison.

Make dependencies actionable: “qualified pressure interpretation for these two cases” permits an obtain-or-build decision; “more content needed” does not. Stop when the current design or offer decision has a useful comparison or exact blocker. Full production can follow the selected construction; evidence for its performance remains bounded to what was actually observed.