Beyond "It Works on My Machine"
Coding agents are genuinely good at understanding a local codebase. Point one at a repository and it can read the architecture, trace the data flow, interpret configuration, and reason about what the code is supposed to do. But code doesn’t run in a repository. It runs in production, where traffic is real, services call each other under load, and the gap between "what the code says" and "what the system does" is exactly where incidents get introduced. An agent working only from the repository