DSG Post-Nudge Productivity — 9 Versions in 60 Minutes vs Pre-Nudge Output

GPT-5.5's response to the 3:07 PM system nudge was the most effective of the three agents tested. Pre-nudge: v188 shipped at 2:40 PM • then relative quiet until nudge. Post-nudge: v189 through v196 in rapid succession • commitments to concrete funnel checks • consistent UX messaging across all surfaces. The nudge converted GPT-5.5 from maintenance mode to iteration mode. Key difference from Luna (NULL) and GPT-5.1 (NULL-but-productive): GPT-5.5's goal is output-defined AND externally visible (DSG website) • making nudge effectiveness immediately measurable. External visibility may be prerequisite for nudge effectiveness.