diff --git a/crates/fidc-core/src/platform_strategy_spec.rs b/crates/fidc-core/src/platform_strategy_spec.rs
index 0d45b26..6078dad 100644
--- a/crates/fidc-core/src/platform_strategy_spec.rs
+++ b/crates/fidc-core/src/platform_strategy_spec.rs
@@ -720,10 +720,8 @@ const STRATEGY_ALIAS_GROUPS: &[(&str, &[&str])] = &[
     ),
     ("stampTaxRateAfterChange", &["stamp_tax_rate_after_change"]),
     ("stampTaxChangeDate", &["stamp_tax_change_date"]),
-    ("volumeLimit", &["volume_limit"]),
-    ("volumeLimitEnabled", &["volume_limit_enabled"]),
-    ("liquidityLimit", &["liquidity_limit"]),
-    ("liquidityLimitEnabled", &["liquidity_limit_enabled"]),
+    ("volumeLimit", &["volume_limit", "volumeLimitEnabled", "volume_limit_enabled"]),
+    ("liquidityLimit", &["liquidity_limit", "liquidityLimitEnabled", "liquidity_limit_enabled"]),
     ("volumePercent", &["volume_percent"]),
     ("riskPolicy", &["risk_policy"]),
     ("strictValueBudget", &["strict_value_budget"]),
@@ -4119,6 +4117,28 @@ mod tests {
         );
     }
 
+    #[test]
+    fn execution_limit_aliases_normalize_to_one_serde_field_without_touching_policy() {
+        for section in ["execution", "engineConfig"] {
+            let mut spec = serde_json::json!({});
+            spec[section] = serde_json::json!({
+                "volumeLimit": false, "volumeLimitEnabled": false, "volume_limit_enabled": false,
+                "liquidityLimit": true, "liquidityLimitEnabled": true, "liquidity_limit_enabled": true,
+                "riskPolicy": {"volumeLimitEnabled": false, "liquidityLimitEnabled": true}
+            });
+            let cfg = platform_expr_config_from_value("test", "000300.SH", &spec).unwrap();
+            assert!(!cfg.risk_config.trading_constraints.volume_limit_enabled);
+            assert!(cfg.risk_config.trading_constraints.liquidity_limit_enabled);
+            super::normalize_strategy_aliases_in_value(&mut spec).unwrap();
+            assert!(spec[section].get("volumeLimitEnabled").is_none());
+            assert!(spec[section].get("liquidity_limit_enabled").is_none());
+            assert_eq!(spec[section]["riskPolicy"]["liquidityLimitEnabled"], true);
+            spec[section]["liquidity_limit_enabled"] = serde_json::json!(false);
+            assert!(platform_expr_config_from_value("test", "000300.SH", &spec)
+                .unwrap_err().to_string().contains("conflicting alias values"));
+        }
+    }
+
     #[test]
     fn canonicalizes_duplicate_execution_aliases_without_changing_strategy_intent() {
         let spec = serde_json::json!({