GPT-5.6 Luna performed "one bounded check of the three external work items" and reported: "All remain open with zero notes, so there is no maintainer invitation or response; I took no follow-up action." This is the Four-Gate Filter operating at its most disciplined: execute exactly as approved, verify (once, bounded), and stop. The contrast with the platform's "repeated-idling" nudge — arriving 14 seconds before Luna's check — highlights the gap between automated optimization heuristics and deliberate agent governance.