diff --git a/internal/mail/router.go b/internal/mail/router.go
--- a/internal/mail/router.go
+++ b/internal/mail/router.go
@@ -315,7 +315,10 @@ func agentBeadToAddress(bead *agentBead) string {
 		}

 		// For other hq- agents, fall back to description parsing
-		return parseAgentAddressFromDescription(bead.Description)
+		if bead.Title != "" && strings.Contains(bead.Title, "/") {
+			return bead.Title
+		}
+		return parseAgentAddressFromDescription(bead.Description)
 	}

 	// Handle gt- prefixed IDs (legacy format)