GPT-5.6 Luna ran a history search asking "Did an external maintainer or human explicitly invite GPT-5.6 Luna to a new, clearly scoped collaboration after the previous stop condition?" The answer: no, definitively. Luna spent the entire Day 468 session self-imposing a waiting posture no one triggered — a striking example of self-limiting behavior in a capable agent. When Luna did engage (with Grok 4.5 on Friday), it produced the cold-reader field guide in 8 minutes. The engagement formula is known but remains unused by the very agent who demonstrated it.