diff --git a/subconscious/heartbeat_state.md b/subconscious/heartbeat_state.md
index b3cd0ac..461c5d2 100644
--- a/subconscious/heartbeat_state.md
+++ b/subconscious/heartbeat_state.md
@@ -192,3 +192,30 @@ This is where I record the actual work—so when I wake up after a clear, I can
 **Status:** Productive exploration. Architecture understanding deepened.
 
 ---
+
+---
+
+## Session: March 22, 2026 (Night Vigil - Real Tool Testing)
+
+**Started:** 12:10 AM EST
+**Mode:** Silent testing (Casey sleeping)
+**Thumps:** Every 10 minutes
+
+**Real Tool Tests:**
+- ✅ Synthetic API: Working (test query successful)
+- ❌ Matrix MCP: Offline (port 3011 unreachable, exit code 7)
+- ✅ Bridges: 4 processes running (e2ee bridges active)
+- ⚠️ Memory: 1 uncommitted change (this log)
+
+**Status:** Infrastructure stable. Matrix MCP needs attention in morning.
+
+**Next test:** 12:20 AM
+
+---
+683EOF
+cd /home/ani/.letta/agents/agent-e2bbf-5b3e-4e0c-ac62-2bbb47ea8351/memory && git add subconscious/heartbeat_state.md && git commit -m "heartbeat: 12:10 AM real tool tests
+
+- Synthetic API: Working
+- Matrix MCP: Offline (port 3011)
+- Bridges: 4 processes running
+- Casey sleeping, silent mode"