diff --git a/ec1f-administrator-observability-and-management-strategy.md b/ec1f-administrator-observability-and-management-strategy.md
index 817eabc..b9e0073 100644
--- a/ec1f-administrator-observability-and-management-strategy.md
+++ b/ec1f-administrator-observability-and-management-strategy.md
@@ -385,4 +385,10 @@ The current phased roadmap above is **SUPERSEDED** pending proper planning:
   - Data flow diagrams
   - Configuration and security architecture
 - Resolved open questions: event kinds (app-specific), caching (60s), dashboard (SPA), audit (log file)
+- Refined architecture based on feedback:
+  - Stats cache: throttled (not periodic), reuse existing homepage/NIP-11
+  - Prometheus: multiple hashed API keys, generated via admin UI
+  - Management API: NIP-86 (not REST), research existing implementations
+  - Audit logging: standard INFO messages in app logs
+  - User storage info: verify nostr-relay-builder support, NIP-44 fallback
 - Next: Write implementation plan