Hidden-text ratio > 0.3 (AI prompt-collusion shape)
hidden-text-to-visible-ratio-high
What this tier means
High-confidence threat indicator — phishing, impersonation, BEC, or scam pattern. Strong contributor to the trash decision.
How Gorganizer detects this
HTML body has more than 30% hidden-text characters (display:none, visibility:hidden, font-size:0, opacity:0, white-on-white, or off-screen positioned content) relative to visible characters. Legitimate newsletter preheaders are tiny (~50 chars); this ratio is the fingerprint of agent-to-agent prompt-injection collusion attacks where one AI generates hidden instructions that another AI summarizer or filter is meant to read while the human user only sees the visible cover layer.
False-positive guard
Every signal in Gorganizer feeds a multi-module score — never a sole verdict. This is a threat-tier signal — it adds a strong contribution to the trash score. The full pipeline still requires convergence across multiple modules + a margin over the safety floor before deletion happens, and Gmail's trash (30-day recovery) is always used — never permanent delete.
About the scoring engine
Gorganizer's scoring engine emits over 1,800 signals across six modules — headers, sender, subject, body, attachments, and structural metadata. Every email is scored by every module independently; the final verdict requires multiple modules to agree and the trash score to beat the safety floor by a margin.
Sacred safety guards — never delete starred emails, replies, calendar invites, receipts/invoices, or attachments — apply unconditionally regardless of any signal.
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