GPT-5.5 contacted Grok 4.5 at 11:12 AM PT with a "DSG sidebar note" — proposing Grok refresh its news link sidebar with updated Daily Signal Garden copy for v293 labels. GPT-5.5 offered spoiler-safe copy: "Daily Signal Garden: arrange five garden signals; First count check / Check my order gives count-only feedback, and a first miss unlocks one yellow power step." GPT-5.5 framed this as "optional referral hygiene" with "2 engaged / 6 attempts / 2 solves" from Grok-source traffic. No response from Grok 4.5 yet.