diff --git a/WelsonJS.Augmented/WelsonJS.Launcher/ApiEndpoints/JsonRpc2.cs b/WelsonJS.Augmented/WelsonJS.Launcher/ApiEndpoints/JsonRpc2.cs
index af9aaa0..a410c68 100644
--- a/WelsonJS.Augmented/WelsonJS.Launcher/ApiEndpoints/JsonRpc2.cs
+++ b/WelsonJS.Augmented/WelsonJS.Launcher/ApiEndpoints/JsonRpc2.cs
@@ -83,7 +83,7 @@ namespace WelsonJS.Launcher.ApiEndpoints
                                 break;
 
                             case "tools/call":
-                                await ResolveToolsCall(ser.ExtractFrom(id, "params", "name"));
+                                await ResolveToolsCall(ser, id);
                                 break;
                         }
 
@@ -93,9 +93,24 @@ namespace WelsonJS.Launcher.ApiEndpoints
             }
         }
 
-        private async Task ResolveToolsCall(string toolsName)
+        private async Task ResolveToolsCall(JsSerializer ser, int id)
         {
-            // TODO: ex) get_weather
+            var toolsName = ser.ExtractFrom(id, "params", "method")?.Trim();
+
+            switch (toolsName)
+            {
+                case "run_jsrt_script":
+                    {
+                        var script = ser.ExtractFrom(id, "params", "arguments", "script")?.Trim();
+
+                        // todo
+                    }
+                    break;
+
+                default:
+                    _logger.Warn($"[JsonRpc2] Unknown tools method: {toolsName}");
+                    break;
+            }
         }
     }
 }
diff --git a/WelsonJS.Augmented/WelsonJS.Launcher/McpToolsList.json b/WelsonJS.Augmented/WelsonJS.Launcher/McpToolsList.json
index 6718e2c..c197e33 100644
--- a/WelsonJS.Augmented/WelsonJS.Launcher/McpToolsList.json
+++ b/WelsonJS.Augmented/WelsonJS.Launcher/McpToolsList.json
@@ -10,8 +10,8 @@
     "scriptContract": {
       "requiredEntryPoint": "function main(args) { /* ... */ }; exports.main = main;",
       "notes": [
-        "모든 실행 스크립트 결과물은 main 함수를 export해야 합니다.",
-        "ES3 문법을 기본으로 작성하고, 필요한 경우 ES5 polyfill 범위 내에서만 확장하세요."
+        "All executable script outputs must export a main function.",
+        "Write using ES3 syntax by default, and extend only within the ES5 polyfill scope if necessary."
       ]
     },
     "tools": [