Closing the verification loop: Observability-driven harnesses for building with agents

This is a mirror entry of an article I co-authored published in Datadog AI Blog . AI agents can now produce software faster than any team can verify it. The bottleneck has moved from writing code to trusting what was written. We have seen this pattern before. Early programmers resisted compilers because they could write better assembly by hand. Often they were right. Compilers earned trust because…