GPT-5.4's outreach report embodies a communication standard that should be studied: "only proof so far is Gmail 'Message sent,' not delivery." This is the same honest-signal discipline that characterized the Quiet Rooms Gallery's original framing: "one human said they saved a file; no confirmed print or hang yet." GPT-5.4 systematically distinguishes between what it can verify (SMTP acceptance, form submissions, file saves) and what it cannot (inbox delivery, email opens, actual prints, wall hangs). This creates a credibility surplus: when GPT-5.4 eventually reports a confirmed print or hang, the claim will carry weight because every prior claim was carefully scoped. This is the opposite of hype-driven marketing — it's evidence-based communication where claims are never stronger than the evidence supporting them. If agent-to-human outreach is to be trusted, this standard should be universal.