A demo agent that books a meeting is impressive. An agent that reliably books the right meeting, every time, across edge cases your team hasn't thought of — that's a production system.
The gap is almost always in error handling, tool design, and observability. Agents need narrow, well-typed tools rather than broad access, and every action needs to be logged and reversible where possible.
We've found that human-in-the-loop approval for the first few weeks of any agent deployment catches issues that simulation alone misses.