Choose how AI helps debug intermittent connection resets

A production Node service throws ECONNRESET, meaning something on the path reset the connection abruptly, now and then under load. Nobody knows why. One engineer writes a careful prompt describing the symptom and asks a model to output the fix. Another points an autonomous agent at the repo and the logs to investigate.

For a murky bug like this, which approach is right, and what does the wrong one get you?