A calculation package leaves a discipline group only after another engineer has checked it. The review is a place where careful people spend a lot of attention on small things, and it makes a clear case for seeing where an agent could help and where it must not.
The Review Today
A design engineer finishes a package for a mechanical system: load calculations, equipment selections, duct and pipe sizing, and a short narrative of the assumptions. The package goes to a reviewer in the same discipline group. The reviewer opens the calculations beside the drawings and the specification, and checks that the inputs match. Does the occupancy on the load sheet match the architect's program? Do the equipment schedule and the calculation agree on capacity? Are the code references current? The reviewer writes comments, the design engineer responds, and the package goes through another round until the discipline leader is satisfied and the engineer of record seals it.
Much of the reviewer's time goes to the matching, which is tedious and important. A mismatch between a calculation and a schedule is the sort of error that survives tired reading, and it is also the sort that causes expensive field corrections.
The Same Review With an Agent
The package goes to the agent first. It reads the calculations, the schedules, the specification sections, and the drawings the firm has connected to it. It drafts a list of observations organized the way the reviewer would organize them: inputs that do not match across documents, references to code editions that differ from the project's, and values that fall outside the ranges the firm's standards describe. It marks how confident it is in each.
The reviewer then opens the package with the list in hand. The first pass of matching is done, and the reviewer spends the effort where it counts: whether the assumptions are sound, whether the method suits the building, whether a result is plausible given experience with similar systems. The reviewer accepts, rejects, or rewrites each observation, and adds comments the agent could not have made.
What Moves and What Stays
The matching moves to the agent. The judgment stays with the engineers. The agent has no standing to say a design is adequate, and nothing it drafts is a finding until the reviewer adopts it. The discipline leader still resolves disagreements, and the engineer of record still decides, signs, and seals.
Something subtler moves as well. Review comments become more consistent, because the agent applies the same checks to every package. The group can see which kinds of errors recur, since the observations are recorded, and can adjust its standards or its training accordingly.
What the Group Must Watch
The risk is that reviewers read the agent's list and stop looking beyond it. A group that uses this well asks reviewers to examine a sample of the package independently, and asks the agent to report what it could not check. The agent's list is a starting point and never a boundary.
The Result
The review retains every person it had. The reviewer arrives at the substantive questions sooner, with the clerical ones already surfaced, and the engineer who seals the package does so on a review that was both broader and more focused than before.
A Note on the Record
One more change is easy to overlook. Because the agent's observations and the reviewer's decisions are both recorded, the firm gains a written trail of how each package was checked. When an owner, a building official, or an insurer asks how a calculation was reviewed, the discipline leader can show the observations raised, which were accepted, and who made each decision. That record supports the engineer of record, and it exists without anyone writing it up afterward.