diff --git a/runtime/actions.cpp b/runtime/actions.cpp
index b63a223..46da58b 100644
--- a/runtime/actions.cpp
+++ b/runtime/actions.cpp
@@ -15,7 +15,8 @@ auto sliger::rpc::action::FlameGraph::perform_action(
 {
     auto json = vm.flame_graph_json();
     if (json) {
-        writer->write(json.value());
+        writer->write(
+            std::format("{{ ok: true, flameGraph: \"{}\"  }}", json.value()));
     } else {
         writer->write("null");
     }
@@ -28,9 +29,10 @@ auto sliger::rpc::action::CodeCoverage::perform_action(
 {
     auto json = vm.code_coverage_json();
     if (json) {
-        writer->write(json.value());
+        writer->write(
+            std::format("{{ ok: true, codeCoverage: \"{}\"  }}", json.value()));
     } else {
-        writer->write("null");
+        writer->write("{ ok: false }");
     }
     writer->flush();
 };