diff --git a/docs/architecture/architectural-principles.md b/docs/architecture/architectural-principles.md
index 84cfad6..219954e 100644
--- a/docs/architecture/architectural-principles.md
+++ b/docs/architecture/architectural-principles.md
@@ -44,4 +44,10 @@ Verified defects may be presented as confirmed issues when supported by concrete
 
 Indicative risks must be presented as directional evidence, not proven customer loss.
 
-This distinction protects client trust, prevents overclaiming, and keeps reports credible.
\ No newline at end of file
+This distinction protects client trust, prevents overclaiming, and keeps reports credible.
+
+Agents may propose evidence classifications, but humans approve final evidence tiers before client-facing use during Version 1.
+
+Ambiguous findings default to Indicative Evidence unless upgraded by human review.
+
+Rejected Verified Evidence classifications default to Indicative Evidence unless the reviewer discards the finding or requests additional evidence.
\ No newline at end of file