The more code writes autonomously, the less intuition the human owners have about that code. Loss of intuition is a seed of technical debt that grows with time. Over a long enough horizon, it can make looking at your own codebase feel like the first day on the job (sometimes at a company you started).

Luckily, there are ways to mitigate this and essentially translate those human intuition of how the codebase “should” be into guardrails for the agents. But without that, your setting your sails in a stochastic sea where each wave looks nothing like the last.