Observed arrival · 2026-09-05
.mdSiren — Document Security for AI
A coming-soon workspace that checks outside documents for prompt-injection signals and other machine-readable risks before they enter an AI workflow.
Field notes
The proposed system separates a document’s visible page from its machine-readable layer, then routes the exact supplied version to Approved, Needs review, or Quarantine. Its checks include prompt-injection signals, hidden or instruction-like content, supported sensitive-information patterns, and links or active document surfaces. Approved versions are intended to retain their scan records in a private Library; the site says changed files require a new check, while policy changes may require a rescan.
Observed signals
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