Checkpoint peering identity and opt-in discovery

vision/discovery-scout.md

@@ -1,6 +1,6 @@
 # Discovery Scout — personalized manga discovery
 
-Status: **vision and implementation plan, not implemented**. Updated 2026-10-09.
+Status: **deterministic first slice implemented; later phases remain a vision**. Updated 2026-10-09. See [`docs/discovery.md`](../docs/discovery.md) for the current contract and deliberate omissions.
 
 ## 1. Outcome