diff --git a/crates/fidc-core/src/platform_strategy_spec.rs b/crates/fidc-core/src/platform_strategy_spec.rs
index 25bfdc5..32331d9 100644
--- a/crates/fidc-core/src/platform_strategy_spec.rs
+++ b/crates/fidc-core/src/platform_strategy_spec.rs
@@ -117,8 +117,6 @@ pub struct StrategyExecutionSpec {
 pub struct StrategyEngineConfig {
     #[serde(default)]
     pub template_id: Option<String>,
-    #[serde(default, alias = "profile_name")]
-    pub profile_name: Option<String>,
     #[serde(default, alias = "benchmark_symbol")]
     pub benchmark_symbol: Option<String>,
     #[serde(default, alias = "signal_symbol")]
@@ -837,6 +835,16 @@ fn reject_removed_compatibility_fields(value: &Value) -> Result<(), String> {
                 "{section_name}.{field_name} has been removed; configure matching, risk, fees and scheduling explicitly"
             ));
         }
+        if section_name != "execution" {
+            if let Some(field_name) = ["profileName", "profile_name"]
+                .iter()
+                .find(|field_name| section.contains_key(**field_name))
+            {
+                return Err(format!(
+                    "{section_name}.{field_name} has been removed; configure matching, risk, fees and scheduling explicitly"
+                ));
+            }
+        }
     }
     Ok(())
 }
@@ -2419,7 +2427,6 @@ mod tests {
             "signalSymbol": "000852.SH",
             "benchmark": { "instrumentId": "000852.SH" },
             "universe": { "exclude": ["paused", "st", "kcb", "one_yuan"] },
-            "engineConfig": { "profileName": "aiquant" },
             "runtimeExpressions": {
                 "prelude": "let stocknum = 8;",
                 "selection": {
@@ -2579,7 +2586,6 @@ mod tests {
                 "stampTaxChangeDate": "2024-01-02"
             },
             "engineConfig": {
-                "profileName": "aiquant",
                 "commissionRate": 0.0008
             }
         });
@@ -2868,7 +2874,6 @@ mod tests {
                 "strictValueBudget": true
             },
             "engineConfig": {
-                "profileName": "aiquant",
                 "matchingType": "current_bar_close",
                 "slippageModel": "none",
                 "slippageValue": 0.0,
@@ -3046,80 +3051,9 @@ mod tests {
         );
     }
 
-    #[test]
-    fn profile_name_does_not_inject_trading_behaviors() {
-        let spec = serde_json::json!({
-            "engineConfig": {
-                "profileName": "aiquant"
-            }
-        });
-
-        let cfg = platform_expr_config_from_value("", "", &spec).expect("config");
-
-        assert!(!cfg.daily_top_up_enabled);
-        assert!(!cfg.retry_empty_rebalance);
-        assert!(cfg.strict_value_budget);
-
-        let explicit_off = serde_json::json!({
-            "engineConfig": {
-                "profileName": "aiquant"
-            },
-            "runtimeExpressions": {
-                "trading": {
-                    "dailyTopUp": false,
-                    "dailyPositionTargetAdjust": false,
-                    "rebalanceExistingPositions": true,
-                    "selectionBufferMultiple": 1.5,
-                    "dailyReplacementLimit": 2,
-                    "retryEmptyRebalance": false
-                }
-            }
-        });
-
-        let cfg = platform_expr_config_from_value("", "", &explicit_off).expect("config");
-
-        assert!(!cfg.daily_top_up_enabled);
-        assert!(!cfg.daily_position_target_adjust_enabled);
-        assert!(cfg.rebalance_existing_positions);
-        assert_eq!(cfg.selection_buffer_multiple, 1.5);
-        assert_eq!(cfg.daily_replacement_limit, 2);
-        assert!(!cfg.retry_empty_rebalance);
-    }
-
-    #[test]
-    fn engine_config_profile_name_is_metadata_only() {
-        let spec = serde_json::json!({
-            "engineConfig": {
-                "profileName": "aiquant"
-            }
-        });
-
-        let cfg = platform_expr_config_from_value("", "", &spec).expect("config");
-        assert!(!cfg.daily_top_up_enabled);
-        assert!(!cfg.retry_empty_rebalance);
-    }
-
-    #[test]
-    fn legacy_profile_name_does_not_inject_hidden_defaults() {
-        let spec = serde_json::json!({
-            "engineConfig": {
-                "profileName": "aiquant_rqalpha"
-            }
-        });
-
-        let cfg = platform_expr_config_from_value("", "", &spec).expect("config");
-
-        assert!(!cfg.daily_top_up_enabled);
-        assert!(!cfg.retry_empty_rebalance);
-        assert!(cfg.strict_value_budget);
-    }
-
     #[test]
     fn runtime_expressions_infer_ma_windows_from_literal_strategy_logic() {
         let spec = serde_json::json!({
-            "engineConfig": {
-                "profileName": "aiquant"
-            },
             "runtimeExpressions": {
                 "selection": {
                     "stockFilterExpr": "rolling_mean(\"close\", 5) > rolling_mean(\"close\", 10) && rolling_mean(\"close\", 10) > rolling_mean(\"close\", 30)"
@@ -3177,7 +3111,6 @@ mod tests {
                 "instrumentId": "932000.CSI"
             },
             "engineConfig": {
-                "profileName": "aiquant",
                 "indexThrottle": {
                     "shortDays": 10,
                     "longDays": 30,
@@ -3206,7 +3139,6 @@ mod tests {
     #[test]
     fn parses_daily_schedule_time_for_execution_quotes() {
         let spec = serde_json::json!({
-            "engineConfig": { "profileName": "aiquant" },
             "runtimeExpressions": {
                 "schedule": { "frequency": "daily", "time": "09:33" }
             }
@@ -3225,7 +3157,6 @@ mod tests {
     #[test]
     fn multiple_trade_times_do_not_imply_delayed_limit_exit() {
         let spec = serde_json::json!({
-            "engineConfig": { "profileName": "aiquant" },
             "rebalance": { "tradeTimes": ["10:31", "10:40"] },
             "runtimeExpressions": {
                 "schedule": { "frequency": "daily", "time": "10:40" }
@@ -3246,7 +3177,6 @@ mod tests {
     fn rejects_removed_compatibility_profile() {
         let spec = serde_json::json!({
             "engineConfig": {
-                "profileName": "cn_a_microcap_v1",
                 "compatibilityProfile": "aiquant_rqalpha"
             },
             "rebalance": { "tradeTimes": ["09:31", "10:15"] },
@@ -3263,10 +3193,21 @@ mod tests {
         );
     }
 
+    #[test]
+    fn rejects_removed_engine_profile_name() {
+        let spec = serde_json::json!({
+            "engineConfig": {
+                "profileName": "aiquant"
+            }
+        });
+
+        let error = platform_expr_config_from_value("", "", &spec).expect_err("removed field");
+        assert!(error.to_string().contains("profileName has been removed"));
+    }
+
     #[test]
     fn parses_explicit_delayed_limit_open_exit() {
         let spec = serde_json::json!({
-            "engineConfig": { "profileName": "aiquant" },
             "runtimeExpressions": {
                 "schedule": { "frequency": "daily", "time": "10:40" },
                 "trading": {
@@ -3290,9 +3231,8 @@ mod tests {
     }
 
     #[test]
-    fn explicit_delayed_limit_open_exit_false_overrides_aiquant_trade_times() {
+    fn explicit_delayed_limit_open_exit_false_overrides_trade_times() {
         let spec = serde_json::json!({
-            "engineConfig": { "profileName": "aiquant" },
             "rebalance": { "tradeTimes": ["10:31", "10:40"] },
             "runtimeExpressions": {
                 "schedule": { "frequency": "daily", "time": "10:40" },