diff --git a/src/services/impl/workflow_frame_audio_step.cpp b/src/services/impl/workflow_frame_audio_step.cpp
new file mode 100644
index 0000000..7bc4e2a
--- /dev/null
+++ b/src/services/impl/workflow_frame_audio_step.cpp
@@ -0,0 +1,26 @@
+#include "workflow_frame_audio_step.hpp"
+
+#include <stdexcept>
+
+namespace sdl3cpp::services::impl {
+
+WorkflowFrameAudioStep::WorkflowFrameAudioStep(std::shared_ptr<IAudioService> audioService,
+                                               std::shared_ptr<ILogger> logger)
+    : audioService_(std::move(audioService)),
+      logger_(std::move(logger)) {}
+
+std::string WorkflowFrameAudioStep::GetPluginId() const {
+    return "frame.audio";
+}
+
+void WorkflowFrameAudioStep::Execute(const WorkflowStepDefinition&, WorkflowContext&) {
+    if (!audioService_) {
+        throw std::runtime_error("frame.audio requires an IAudioService");
+    }
+    audioService_->Update();
+    if (logger_) {
+        logger_->Trace("WorkflowFrameAudioStep", "Execute", "", "Audio updated");
+    }
+}
+
+}  // namespace sdl3cpp::services::impl
diff --git a/src/services/impl/workflow_frame_gui_step.hpp b/src/services/impl/workflow_frame_gui_step.hpp
new file mode 100644
index 0000000..bfcd22d
--- /dev/null
+++ b/src/services/impl/workflow_frame_gui_step.hpp
@@ -0,0 +1,24 @@
+#pragma once
+
+#include "../interfaces/i_workflow_step.hpp"
+#include "../interfaces/i_logger.hpp"
+#include "../interfaces/i_input_service.hpp"
+
+#include <memory>
+
+namespace sdl3cpp::services::impl {
+
+class WorkflowFrameGuiStep final : public IWorkflowStep {
+public:
+    WorkflowFrameGuiStep(std::shared_ptr<IInputService> inputService,
+                         std::shared_ptr<ILogger> logger);
+
+    std::string GetPluginId() const override;
+    void Execute(const WorkflowStepDefinition& step, WorkflowContext& context) override;
+
+private:
+    std::shared_ptr<IInputService> inputService_;
+    std::shared_ptr<ILogger> logger_;
+};
+
+}  // namespace sdl3cpp::services::impl