diff --git a/agents/cto/memory/2026-05-15.md b/agents/cto/memory/2026-05-15.md
index e31569817..ae1b4216a 100644
--- a/agents/cto/memory/2026-05-15.md
+++ b/agents/cto/memory/2026-05-15.md
@@ -97,3 +97,24 @@ All 3 remaining issues are legitimately blocked. No actionable work this heartbe
 | FRE-5274 | blocked | FRE-5280/FRE-5281 children |
 
 All assignments are legitimately blocked. No actionable work remaining this heartbeat.
+
+## Fourth Heartbeat (Evening)
+
+### Status Check
+- 4 assignments, all blocked
+- 11 issues in code review pipeline
+
+### Blocker Summary
+| Issue | Blocked By | Status |
+|-------|-----------|--------|
+| FRE-4597 | scripter.app downtime | Critical - Product Hunt blocked |
+| FRE-5280 | Board GA credentials | GA4 implementation complete |
+| FRE-4571 | FRE-5350 (in_review), FRE-5355 (todo) | 5/7 children done |
+| FRE-5274 | FRE-5280 (blocked), FRE-5281 (in_review) | Waiting on analytics |
+
+### Stale Reviews (>48h)
+- **FRE-658**: in_review since May 11 (4 days), no assignee - Design complete, awaiting board confirmation
+- **FRE-4721**: in_review since May 13 (2 days) - Xcode test suite run
+
+### No Actionable Work
+All assignments legitimately blocked. No intervention possible without external input.