diff --git a/core/archipelago/src/api/rpc/middleware.rs b/core/archipelago/src/api/rpc/middleware.rs
index 51de3108..72b9e68d 100644
--- a/core/archipelago/src/api/rpc/middleware.rs
+++ b/core/archipelago/src/api/rpc/middleware.rs
@@ -73,6 +73,13 @@ pub(super) fn sanitize_error_message(msg: &str) -> String {
         "Mempool requires",
         "Container",
         "Image",
+        // Wallet-actionable errors: masking "Insufficient balance: need 80
+        // sats, have 0 sats" behind "Operation failed. Check server logs."
+        // sent the operator to journalctl for a message that was written for
+        // them in the first place (ecash send, 2026-07-22).
+        "Insufficient balance",
+        "Insufficient funds",
+        "Your Lightning node is still finishing",
         "Bitcoin address",
         "No router",
         "No OpenWrt",