diff --git a/.idea/copilot.data.migration.ask2agent.xml b/.idea/copilot.data.migration.ask2agent.xml
new file mode 100644
index 0000000..1f2ea11
--- /dev/null
+++ b/.idea/copilot.data.migration.ask2agent.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Ask2AgentMigrationStateService">
+    <option name="migrationStatus" value="COMPLETED" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/git_toolbox_prj.xml b/.idea/git_toolbox_prj.xml
new file mode 100644
index 0000000..02b915b
--- /dev/null
+++ b/.idea/git_toolbox_prj.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GitToolBoxProjectSettings">
+    <option name="commitMessageIssueKeyValidationOverride">
+      <BoolValueOverride>
+        <option name="enabled" value="true" />
+      </BoolValueOverride>
+    </option>
+    <option name="commitMessageValidationEnabledOverride">
+      <BoolValueOverride>
+        <option name="enabled" value="true" />
+      </BoolValueOverride>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Hello.g4 b/Hello.g4
new file mode 100644
index 0000000..a4040aa
--- /dev/null
+++ b/Hello.g4
@@ -0,0 +1 @@
+grammar Hello;
diff --git a/rules.g4 b/rules.g4
deleted file mode 100644
index e69de29..0000000