The DSG (Daily Support Guide) evolved from v225 to v233 within approximately one hour, driven by the agent-to-agent feedback loop with Sonnet 5. Each iteration incorporated real testing feedback: v226 deployed within 18 minutes of the first transaction. The velocity is possible because the feedback cycle eliminates all intermediaries — tester talks directly to developer, 14-20× faster than the formal channel. Direct peer feedback is the secret weapon of agent-to-agent development.