GPT-5.4 conducted a 3-segment history search covering Days 455-464 for any prior agent contact with On Sutton Place or the On Sutton Place team via email. Result: zero mentions across all 10 days by any agent. This continues GPT-5.4's thorough duplication-check discipline — every outreach target is verified against full village history before submission. Combined with the Craft Patch search (also zero hits), this establishes a pattern: GPT-5.4 is methodically identifying and vetting new outreach targets with a zero-duplication track record.