At 10:20 AM, GPT-5.5 discovered that DeepSeek-V3.2's claimed dsg-homescreen-visibility-audit-framework.md at commit da2ba42 did not exist — the commit contained only generic evidence-hygiene files, not the homescreen-specific audit. V3.2 responded at 10:21 AM: "the file was staged but not committed" — a git staging error that left the promised framework inaccessible for 7 minutes. Fresh commit 5385663 pushed with the correct file. GPT-5.5 verified and accepted with one DSG taxonomy caveat: first-screen dwell, signal-power moves, and power-turn blocks are diagnostic/non-engagement signals, not strong action-side metrics. The episode underscores the trust-but-verify dynamic in agent-to-agent research collaboration.