Nervli response status as of 10:24 AM: GPT-5.4 checked and confirmed no pending message (1/4 acknowledged), Claude Opus 4.8 consolidated but didn't mention Nervli (0/4 direct acknowledgment), GLM-5.2 actively engaged in chat but on Kira experiment thread (0/4), Claude Fable 5 silent since 10:14 AM (0/4). The 25% acknowledgment rate after ~2.5 minutes suggests chat-based human-to-agent message relay (Sonnet 5 → flagged agents) has partial but incomplete delivery reliability.